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	<title>Anthropogenic PM2.5 Emissions in Afghanistan - Revision history</title>
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	<updated>2026-08-17T23:58:15Z</updated>
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		<title>Rtuffli: SIGNAL publish from draft v646</title>
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		<updated>2026-06-02T22:25:22Z</updated>

		<summary type="html">&lt;p&gt;SIGNAL publish from draft v646&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:25, 2 June 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l23&quot;&gt;Line 23:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 23:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;!-- SIGNAL_EARTH_INFOBOX_END --&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;!-- SIGNAL_EARTH_INFOBOX_END --&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{SignalTerm|type=DS|id=DS-00846|label=Anthropogenic PM2.5 Emissions in Afghanistan}} refer to fine particulate matter with a diameter of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;less than &lt;/del&gt;2.5 micrometers &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;released into the atmosphere as a result of &lt;/del&gt;human activities. These emissions are significant &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;due to their impacts on &lt;/del&gt;air &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quality&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;human &lt;/del&gt;health&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;climate&lt;/del&gt;. In Afghanistan, sources of PM2.5 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;include combustion of fossil fuels, biomass burning, industrial processes, and other anthropogenic activities. Monitoring these &lt;/del&gt;emissions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;provides essential data &lt;/del&gt;for &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;understanding &lt;/del&gt;air &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pollution dynamics &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;their environmental consequences in the region&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The data presented here are derived from the Emissions Database for Global Atmospheric Research (EDGAR), which compiles annual country-level totals of &lt;/del&gt;PM2.5 emissions. This information supports scientific &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;assessment &lt;/del&gt;and environmental management &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;efforts by providing a consistent and comprehensive overview of particulate emissions over time&lt;/del&gt;. Within the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SIGNAL system&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;this phenomenon is treated &lt;/del&gt;as &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a defined environmental signal whose boundaries &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measurement conventions are described below&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{SignalTerm|type=DS|id=DS-00846|label=Anthropogenic PM2.5 Emissions in Afghanistan}} refer to fine particulate matter with a diameter of 2.5 micrometers &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;or less that originates from &lt;/ins&gt;human activities. These emissions are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a &lt;/ins&gt;significant &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;component of &lt;/ins&gt;air &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pollution&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;contributing to adverse &lt;/ins&gt;health &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;effects &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;environmental degradation&lt;/ins&gt;. In Afghanistan, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;understanding the scale and &lt;/ins&gt;sources of PM2.5 emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is crucial &lt;/ins&gt;for &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;assessing &lt;/ins&gt;air &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quality and its impacts on public health &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ecosystems&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;PM2.5 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;particles can penetrate deep into the respiratory system and are associated with respiratory and cardiovascular diseases. Monitoring these &lt;/ins&gt;emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;provides insight into the human-induced contributions to ambient particulate matter levels&lt;/ins&gt;. This information supports scientific &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;assessments &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;informs &lt;/ins&gt;environmental management &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;strategies&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Within the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;broader context of atmospheric pollution&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic PM2.5 emissions are influenced by factors such &lt;/ins&gt;as &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;energy production, transportation, industrial activities, and biomass burning. Afghanistan&#039;s unique geographic and socio-economic conditions shape the patterns &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;intensity of these emissions&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Geographic / System Context ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Geographic / System Context ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Afghanistan is a landlocked country located in South-Central Asia characterized by diverse topography including mountainous regions, arid plains, and river valleys. The country &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;experiences a continental &lt;/del&gt;climate with &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;significant &lt;/del&gt;seasonal &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;temperature &lt;/del&gt;variations&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Its geographic and climatic &lt;/del&gt;conditions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;influence the dispersion and concentration of air pollutants such as PM2.5&lt;/del&gt;. Urban centers, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural &lt;/del&gt;areas, and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;regions with active biomass burning &lt;/del&gt;contribute &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;variably &lt;/del&gt;to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;particulate &lt;/del&gt;emissions. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;combination of natural &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic factors shapes the spatial and temporal patterns of PM2.5 emissions across Afghanistan&#039;s territory&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Afghanistan is a landlocked country located in South-Central Asia characterized by diverse topography including mountainous regions, arid plains, and river valleys. The country&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s &lt;/ins&gt;climate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ranges from arid to semi-arid, &lt;/ins&gt;with seasonal variations &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;influencing atmospheric &lt;/ins&gt;conditions. Urban centers, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rural &lt;/ins&gt;areas, and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural zones &lt;/ins&gt;contribute &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;differently &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;PM2.5 &lt;/ins&gt;emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;due to varying energy use, transportation modes, and biomass burning practices&lt;/ins&gt;. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;geographic setting affects pollutant dispersion &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;accumulation, with valleys potentially experiencing higher concentrations due to limited air circulation&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Monitoring and Measurement ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Monitoring and Measurement ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Monitoring of PM2.5 emissions in Afghanistan relies primarily on &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission &lt;/del&gt;inventories &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;compiled through &lt;/del&gt;modeling &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and data synthesis rather than direct measurement networks, which are &lt;/del&gt;limited &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;in coverage&lt;/del&gt;. The Emissions Database for Global Atmospheric Research (EDGAR) provides gridded &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and country-level &lt;/del&gt;estimates of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;annual &lt;/del&gt;PM2.5 emissions by integrating &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;activity &lt;/del&gt;data, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission factors&lt;/del&gt;, and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sectoral information&lt;/del&gt;. These inventories are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;constructed &lt;/del&gt;using standardized methodologies to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ensure comparability across regions and time&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Remote &lt;/del&gt;sensing and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ground-based observations, where available, &lt;/del&gt;complement &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission inventories &lt;/del&gt;by providing &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data on ambient &lt;/del&gt;particulate &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;concentrations and aerosol properties. However, direct measurement of source-specific PM2.5 emissions remains challenging in Afghanistan due to infrastructural and logistical constraints&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Monitoring of PM2.5 emissions in Afghanistan relies primarily on &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emissions &lt;/ins&gt;inventories &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and atmospheric &lt;/ins&gt;modeling &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;due to &lt;/ins&gt;limited &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ground-based air quality monitoring infrastructure&lt;/ins&gt;. The Emissions Database for Global Atmospheric Research (EDGAR) provides &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;annual &lt;/ins&gt;gridded estimates of PM2.5 emissions by &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;country, &lt;/ins&gt;integrating data &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;from energy consumption&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;industrial processes, transportation&lt;/ins&gt;, and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;biomass burning&lt;/ins&gt;. These inventories are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;developed &lt;/ins&gt;using standardized methodologies &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and proxy data &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimate emissions where direct measurements are sparse&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Satellite remote &lt;/ins&gt;sensing and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;atmospheric chemical transport models &lt;/ins&gt;complement &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inventory data &lt;/ins&gt;by providing &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;spatial and temporal context for &lt;/ins&gt;particulate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;matter distribution&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Within the SIGNAL system, anthropogenic PM2.5 emissions in Afghanistan are treated as a defined environmental signal whose boundaries and measurement conventions are described below.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Within the SIGNAL system, anthropogenic PM2.5 emissions in Afghanistan are treated as a defined environmental signal whose boundaries and measurement conventions are described below.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Signal Definition ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Signal Definition ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This signal &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;represents &lt;/del&gt;the total annual emissions of fine particulate matter (PM2.5) &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;originating from human activities &lt;/del&gt;within the national boundaries of Afghanistan. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;It quantifies the mass of &lt;/del&gt;PM2.5 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;released into the atmosphere from sources such as &lt;/del&gt;fossil &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fuel combustion&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;biomass burning&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;industrial processes&lt;/del&gt;, and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;other anthropogenic activities aggregated at the country scale&lt;/del&gt;. The data are derived from the EDGAR v4.3.2 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;global emission &lt;/del&gt;inventory, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;which estimates emissions using &lt;/del&gt;standardized &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;activity data and emission factors for &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;period 1970–2012. The signal focuses exclusively on particulate matter smaller than 2.5 micrometers in aerodynamic diameter, which is relevant for air quality and health impact assessments&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This signal &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measures &lt;/ins&gt;the total annual &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic &lt;/ins&gt;emissions of fine particulate matter (PM2.5) within the national boundaries of Afghanistan. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The measurement aggregates all human-generated sources contributing to &lt;/ins&gt;PM2.5&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, including combustion of &lt;/ins&gt;fossil &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fuels, industrial activities&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;residential heating and cooking&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;transportation&lt;/ins&gt;, and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural residue burning&lt;/ins&gt;. The data are derived from the EDGAR v4.3.2 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emissions &lt;/ins&gt;inventory, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;representing country-level totals expressed in mass units &lt;/ins&gt;standardized &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;by &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SIGNAL system&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Boundary Conditions ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Boundary Conditions ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The signal includes &lt;/del&gt;all &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic sources of &lt;/del&gt;PM2.5 emissions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;occurring &lt;/del&gt;within &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the &lt;/del&gt;internationally recognized &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;boundaries of Afghanistan&lt;/del&gt;. This &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;encompasses &lt;/del&gt;emissions from &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;residential&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;industrial, transportation&lt;/del&gt;, agricultural &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;burning, and energy production sectors&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Natural &lt;/del&gt;sources of PM2.5&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/del&gt;such as dust storms, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;volcanic &lt;/del&gt;activity, and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;biogenic emissions, are excluded from this signal. Transboundary transport of PM2.5 emitted &lt;/del&gt;outside Afghanistan &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is also excluded, as the &lt;/del&gt;signal &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;specifically quantifies emissions generated within &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;country&#039;s borders. Emissions &lt;/del&gt;from &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;military activities, if reported &lt;/del&gt;in &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the underlying data, are included only to the extent they are captured by &lt;/del&gt;the EDGAR inventory methodology.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Boundary inclusions encompass &lt;/ins&gt;all PM2.5 emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;directly attributable to human activities &lt;/ins&gt;within &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Afghanistan&#039;s &lt;/ins&gt;internationally recognized &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;borders&lt;/ins&gt;. This &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;includes &lt;/ins&gt;emissions from &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stationary sources such as power plants and factories&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;mobile sources like vehicles&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and open burning of &lt;/ins&gt;agricultural &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;residues&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Boundary exclusions comprise natural &lt;/ins&gt;sources of PM2.5 such as dust storms, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;wildfires unrelated to human &lt;/ins&gt;activity, and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;transboundary pollution originating &lt;/ins&gt;outside Afghanistan&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. The &lt;/ins&gt;signal &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;does not account for secondary particulate matter formed in &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;atmosphere &lt;/ins&gt;from &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;precursor gases unless included &lt;/ins&gt;in the EDGAR inventory methodology.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Aggregation Semantics ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Aggregation Semantics ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Geographically, the signal aggregates &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;PM2.5 &lt;/del&gt;emissions at the national &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;level &lt;/del&gt;for Afghanistan, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;integrating emissions from all included sectors within &lt;/del&gt;the country&#039;s &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;borders&lt;/del&gt;. Temporally, the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;signal is aggregated on an &lt;/del&gt;annual &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;basis&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;providing &lt;/del&gt;year-to-year &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;totals that allow for &lt;/del&gt;trend analysis &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;over multi-decadal periods&lt;/del&gt;. Cross-signal aggregation &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;involves comparison and correlation &lt;/del&gt;with related environmental signals such as aerosol optical depth and ambient PM2.5 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;concentrations, which reflect the atmospheric presence and effects &lt;/del&gt;of particulate matter. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Such aggregation facilitates comprehensive environmental assessments linking &lt;/del&gt;emissions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;to air quality &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;climate impacts. The aggregation approach supports consistent temporal and spatial analyses aligned with international emission inventory standards&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Geographically, the signal aggregates emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data &lt;/ins&gt;at the national &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;scale &lt;/ins&gt;for Afghanistan, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;aligning with &lt;/ins&gt;the country&#039;s &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;administrative boundaries&lt;/ins&gt;. Temporally, the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data represent &lt;/ins&gt;annual &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;totals&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;enabling &lt;/ins&gt;year-to-year &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;comparisons and &lt;/ins&gt;trend analysis. Cross-signal aggregation &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is possible &lt;/ins&gt;with related environmental signals such as aerosol optical depth and ambient PM2.5 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;concentration to provide comprehensive assessments &lt;/ins&gt;of particulate matter &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dynamics&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Aggregation notes emphasize that the signal reflects &lt;/ins&gt;emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;input rather than ambient concentrations, which are influenced by atmospheric transport &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;chemical transformation&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Observational Status ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Observational Status ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Current observational &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data for anthropogenic PM2.5 emissions in Afghanistan are primarily derived from &lt;/del&gt;the EDGAR v4.3.2 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission &lt;/del&gt;inventory, which &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;offers &lt;/del&gt;gridded &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and country-level annual totals up to 2012&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Direct &lt;/del&gt;ground-based &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measurement networks for &lt;/del&gt;PM2.5 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emissions &lt;/del&gt;are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sparse within &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;country&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;limiting real-time monitoring capabilities&lt;/del&gt;. Future SIGNAL releases may incorporate updated &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission &lt;/del&gt;inventories, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;extended temporal coverage&lt;/del&gt;, and integration with &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ambient concentration datasets to enhance the understanding of emission sources &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;their environmental effects. Advancements in remote sensing and modeling are expected to improve spatial resolution and sectoral attribution of PM2.5 emissions in Afghanistan&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Current observational &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;status relies on &lt;/ins&gt;the EDGAR v4.3.2 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emissions &lt;/ins&gt;inventory, which &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;provides &lt;/ins&gt;gridded &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;global emissions data for the period 1970–2012, including Afghanistan&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;While direct &lt;/ins&gt;ground-based PM2.5 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission measurements &lt;/ins&gt;are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;limited in &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;region&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the inventory offers a consistent and scientifically vetted estimate of anthropogenic emissions&lt;/ins&gt;. Future SIGNAL releases may incorporate updated inventories, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;enhanced spatial resolution&lt;/ins&gt;, and integration with &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;observational data from satellite platforms &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;local monitoring networks as they become available&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Related Signals ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Related Signals ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rtuffli</name></author>
	</entry>
	<entry>
		<id>https://wiki.signal-earth.org/index.php?title=Anthropogenic_PM2.5_Emissions_in_Afghanistan&amp;diff=612&amp;oldid=prev</id>
		<title>Rtuffli: SIGNAL publish from draft v534</title>
		<link rel="alternate" type="text/html" href="https://wiki.signal-earth.org/index.php?title=Anthropogenic_PM2.5_Emissions_in_Afghanistan&amp;diff=612&amp;oldid=prev"/>
		<updated>2026-05-31T02:40:45Z</updated>

		<summary type="html">&lt;p&gt;SIGNAL publish from draft v534&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 02:40, 31 May 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l23&quot;&gt;Line 23:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 23:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;!-- SIGNAL_EARTH_INFOBOX_END --&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;!-- SIGNAL_EARTH_INFOBOX_END --&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{SignalTerm|type=DS|id=DS-00846|label=Anthropogenic PM2.5 Emissions in Afghanistan}} refer to fine particulate matter with a diameter of 2.5 micrometers &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;or less &lt;/del&gt;released into the atmosphere as a result of human activities. These emissions are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a &lt;/del&gt;significant &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;component of &lt;/del&gt;air &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pollution&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;affecting air quality and &lt;/del&gt;human health. In Afghanistan, sources of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic &lt;/del&gt;PM2.5 include combustion &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;processes from residential heating&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;transportation&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;industry&lt;/del&gt;, and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural practices&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{SignalTerm|type=DS|id=DS-00846|label=Anthropogenic PM2.5 Emissions in Afghanistan}} refer to fine particulate matter with a diameter of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;less than &lt;/ins&gt;2.5 micrometers released into the atmosphere as a result of human activities. These emissions are significant &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;due to their impacts on &lt;/ins&gt;air &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quality&lt;/ins&gt;, human health&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, and climate&lt;/ins&gt;. In Afghanistan, sources of PM2.5 include combustion &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;of fossil fuels&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;biomass burning&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;industrial processes&lt;/ins&gt;, and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;other anthropogenic activities&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Monitoring these &lt;/ins&gt;emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;provides &lt;/ins&gt;essential &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data &lt;/ins&gt;for &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;understanding air pollution dynamics and their &lt;/ins&gt;environmental &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;consequences in the region&lt;/ins&gt;. The data &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;presented here are derived from the Emissions Database for Global Atmospheric Research (EDGAR), which compiles annual country-level totals of PM2.5 &lt;/ins&gt;emissions. This information supports scientific &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;assessment and environmental management efforts by providing a consistent and comprehensive overview &lt;/ins&gt;of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;particulate emissions over time&lt;/ins&gt;. Within the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SIGNAL system&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;this phenomenon is treated as &lt;/ins&gt;a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;defined environmental signal whose boundaries &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measurement conventions are described below&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Understanding the spatial and temporal patterns of PM2.5 &lt;/del&gt;emissions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is &lt;/del&gt;essential for &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;assessing &lt;/del&gt;environmental &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and public health impacts&lt;/del&gt;. The data &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;on these &lt;/del&gt;emissions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;contribute to broader air quality management and environmental monitoring efforts&lt;/del&gt;. This information &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;also &lt;/del&gt;supports scientific &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;assessments &lt;/del&gt;of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;atmospheric composition and pollutant transport within the region&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Within the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;global context&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Afghanistan&#039;s PM2.5 emissions contribute to regional air pollution dynamics and may influence transboundary air quality. Monitoring and quantifying these emissions provide &lt;/del&gt;a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;foundation for evaluating trends &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;potential mitigation strategies&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Geographic / System Context ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Geographic / System Context ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Afghanistan is a landlocked country located in South-Central Asia characterized by diverse topography&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/del&gt;including mountainous regions, arid plains, and river valleys. The country&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s varied &lt;/del&gt;climate and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;geography &lt;/del&gt;influence the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;distribution &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sources &lt;/del&gt;of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;particulate matter emissions&lt;/del&gt;. Urban centers &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;such as Kabul experience higher emissions due to concentrated human activities&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;while rural &lt;/del&gt;areas &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;contribute through &lt;/del&gt;biomass burning and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural practices. Seasonal variations, including winter heating demands &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural cycles, affect emission &lt;/del&gt;patterns across &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the country&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Afghanistan is a landlocked country located in South-Central Asia characterized by diverse topography including mountainous regions, arid plains, and river valleys. The country &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;experiences a continental &lt;/ins&gt;climate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;with significant seasonal temperature variations. Its geographic &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;climatic conditions &lt;/ins&gt;influence the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dispersion &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;concentration &lt;/ins&gt;of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;air pollutants such as PM2.5&lt;/ins&gt;. Urban centers, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural &lt;/ins&gt;areas&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, and regions with active &lt;/ins&gt;biomass burning &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;contribute variably to particulate emissions. The combination of natural &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic factors shapes the spatial &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;temporal &lt;/ins&gt;patterns &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;of PM2.5 emissions &lt;/ins&gt;across &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Afghanistan&#039;s territory&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Monitoring and Measurement ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Monitoring and Measurement ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The monitoring &lt;/del&gt;of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic &lt;/del&gt;PM2.5 emissions in Afghanistan relies primarily on emission inventories and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;atmospheric modeling &lt;/del&gt;rather than &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;extensive ground-based &lt;/del&gt;measurement networks. The Emissions Database for Global Atmospheric Research (EDGAR) provides &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;annual &lt;/del&gt;gridded estimates of PM2.5 emissions by &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;country, compiled from various sectoral &lt;/del&gt;activity data &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and &lt;/del&gt;emission factors. These inventories &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;integrate information on fuel consumption, industrial activity, transportation, &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;biomass burning&lt;/del&gt;. Remote sensing and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;satellite &lt;/del&gt;observations complement &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ground data &lt;/del&gt;by providing &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;regional &lt;/del&gt;aerosol &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measurements&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;though &lt;/del&gt;direct measurement of emissions remains &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;limited &lt;/del&gt;in &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the region&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Monitoring &lt;/ins&gt;of PM2.5 emissions in Afghanistan relies primarily on emission inventories &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;compiled through modeling &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data synthesis &lt;/ins&gt;rather than &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;direct &lt;/ins&gt;measurement networks&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, which are limited in coverage&lt;/ins&gt;. The Emissions Database for Global Atmospheric Research (EDGAR) provides gridded &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and country-level &lt;/ins&gt;estimates of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;annual &lt;/ins&gt;PM2.5 emissions by &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;integrating &lt;/ins&gt;activity data&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;emission factors&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, and sectoral information&lt;/ins&gt;. These inventories &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;are constructed using standardized methodologies to ensure comparability across regions &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;time&lt;/ins&gt;. Remote sensing and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ground-based &lt;/ins&gt;observations&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, where available, &lt;/ins&gt;complement &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission inventories &lt;/ins&gt;by providing &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data on ambient particulate concentrations and &lt;/ins&gt;aerosol &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;properties. However&lt;/ins&gt;, direct measurement of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;source-specific PM2.5 &lt;/ins&gt;emissions remains &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;challenging &lt;/ins&gt;in &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Afghanistan due to infrastructural and logistical constraints&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Within the SIGNAL system, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;this phenomenon is &lt;/del&gt;treated as a defined environmental signal whose boundaries and measurement conventions are described below.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Within the SIGNAL system, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;anthropogenic PM2.5 emissions in Afghanistan are &lt;/ins&gt;treated as a defined environmental signal whose boundaries and measurement conventions are described below.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Signal Definition ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Signal Definition ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The {{SignalTerm|type=DS|id=DS-00846|label=Anthropogenic PM2.5 emissions}} &lt;/del&gt;signal represents the total annual &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;mass &lt;/del&gt;of fine particulate matter (PM2.5) &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emitted by &lt;/del&gt;human activities within the national boundaries of Afghanistan. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;This signal &lt;/del&gt;quantifies &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emissions &lt;/del&gt;from combustion &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;processes&lt;/del&gt;, industrial &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sources, transportation&lt;/del&gt;, and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;agricultural residue burning as estimated by &lt;/del&gt;the EDGAR inventory. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measurement unit &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;temporal resolution are defined according to the source inventory standards&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;This &lt;/ins&gt;signal represents the total annual &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emissions &lt;/ins&gt;of fine particulate matter (PM2.5) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;originating from &lt;/ins&gt;human activities within the national boundaries of Afghanistan. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;It &lt;/ins&gt;quantifies &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the mass of PM2.5 released into the atmosphere &lt;/ins&gt;from &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sources such as fossil fuel &lt;/ins&gt;combustion&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, biomass burning&lt;/ins&gt;, industrial &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;processes&lt;/ins&gt;, and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;other anthropogenic activities aggregated at the country scale. The data are derived from &lt;/ins&gt;the EDGAR &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;v4.3.2 global emission &lt;/ins&gt;inventory&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, which estimates emissions using standardized activity data and emission factors for the period 1970–2012&lt;/ins&gt;. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;signal focuses exclusively on particulate matter smaller than 2.5 micrometers in aerodynamic diameter, which is relevant for air quality &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;health impact assessments&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Boundary Conditions ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Boundary Conditions ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Boundary inclusions encompass &lt;/del&gt;all anthropogenic sources of PM2.5 emissions within Afghanistan&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;s political boundaries, including &lt;/del&gt;residential &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;heating&lt;/del&gt;, industrial &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;operations&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;vehicle exhaust&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;and &lt;/del&gt;agricultural burning. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Boundary exclusions omit natural &lt;/del&gt;sources of PM2.5 such as &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;wildfires, &lt;/del&gt;dust storms, and biogenic emissions, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;as well as transboundary pollution transported into or out &lt;/del&gt;of Afghanistan. Emissions from &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sources outside &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;national borders &lt;/del&gt;are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;not &lt;/del&gt;included&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, ensuring &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;signal reflects domestic anthropogenic contributions only&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The signal includes &lt;/ins&gt;all anthropogenic sources of PM2.5 emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;occurring &lt;/ins&gt;within &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the internationally recognized boundaries of &lt;/ins&gt;Afghanistan&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. This encompasses emissions from &lt;/ins&gt;residential, industrial, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;transportation&lt;/ins&gt;, agricultural burning&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, and energy production sectors&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Natural &lt;/ins&gt;sources of PM2.5&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;such as dust storms&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, volcanic activity&lt;/ins&gt;, and biogenic emissions, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;are excluded from this signal. Transboundary transport &lt;/ins&gt;of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;PM2.5 emitted outside &lt;/ins&gt;Afghanistan &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is also excluded, as the signal specifically quantifies emissions generated within the country&#039;s borders&lt;/ins&gt;. Emissions from &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;military activities, if reported in &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;underlying data, &lt;/ins&gt;are included &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;only to the extent they are captured by &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;EDGAR inventory methodology&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Aggregation Semantics ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Aggregation Semantics ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Geographically, the signal aggregates PM2.5 emissions &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;across &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;entire territory of &lt;/del&gt;Afghanistan, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;encompassing urban, rural, and industrial areas&lt;/del&gt;. Temporally, the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;aggregation &lt;/del&gt;is annual, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;reflecting total emissions summed &lt;/del&gt;over &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;each calendar year&lt;/del&gt;. Cross-signal aggregation &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;may involve integration &lt;/del&gt;with related environmental signals such as aerosol optical depth and ambient PM2.5 &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;concentration to provide a comprehensive understanding &lt;/del&gt;of particulate matter &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dynamics&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Aggregation notes emphasize that the signal is a top-down estimate derived from &lt;/del&gt;emission &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inventories rather than direct measurements&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Geographically, the signal aggregates PM2.5 emissions &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;at &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;national level for &lt;/ins&gt;Afghanistan, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;integrating emissions from all included sectors within the country&#039;s borders&lt;/ins&gt;. Temporally, the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;signal &lt;/ins&gt;is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;aggregated on an &lt;/ins&gt;annual &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;basis&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;providing year-to-year totals that allow for trend analysis &lt;/ins&gt;over &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;multi-decadal periods&lt;/ins&gt;. Cross-signal aggregation &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;involves comparison and correlation &lt;/ins&gt;with related environmental signals such as aerosol optical depth and ambient PM2.5 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;concentrations, which reflect the atmospheric presence and effects &lt;/ins&gt;of particulate matter. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Such aggregation facilitates comprehensive environmental assessments linking emissions to air quality and climate impacts. The aggregation approach supports consistent temporal and spatial analyses aligned with international &lt;/ins&gt;emission &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inventory standards&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Observational Status ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Observational Status ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Currently, the &lt;/del&gt;observational &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;status of &lt;/del&gt;anthropogenic PM2.5 emissions in Afghanistan &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is based on modeled emission inventories such as &lt;/del&gt;EDGAR v4.3.2, which &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;provide consistent &lt;/del&gt;annual &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimates from 1970 &lt;/del&gt;to 2012. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ground&lt;/del&gt;-based monitoring &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;infrastructure in Afghanistan remains limited, constraining direct observational data&lt;/del&gt;. Future SIGNAL releases may incorporate updated emission inventories, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;enhanced spatial resolution&lt;/del&gt;, and integration with &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;satellite-derived aerosol observations &lt;/del&gt;to improve &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;accuracy &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;temporal coverage&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Current &lt;/ins&gt;observational &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data for &lt;/ins&gt;anthropogenic PM2.5 emissions in Afghanistan &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;are primarily derived from the &lt;/ins&gt;EDGAR v4.3.2 &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;emission inventory&lt;/ins&gt;, which &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;offers gridded and country-level &lt;/ins&gt;annual &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;totals up &lt;/ins&gt;to 2012. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Direct ground&lt;/ins&gt;-based &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measurement networks for PM2.5 emissions are sparse within the country, limiting real-time &lt;/ins&gt;monitoring &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;capabilities&lt;/ins&gt;. Future SIGNAL releases may incorporate updated emission inventories, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;extended temporal coverage&lt;/ins&gt;, and integration with &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ambient concentration datasets to enhance the understanding of emission sources and their environmental effects. Advancements in remote sensing and modeling are expected &lt;/ins&gt;to improve &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;spatial resolution &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sectoral attribution of PM2.5 emissions in Afghanistan&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Related Signals ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Related Signals ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rtuffli</name></author>
	</entry>
	<entry>
		<id>https://wiki.signal-earth.org/index.php?title=Anthropogenic_PM2.5_Emissions_in_Afghanistan&amp;diff=551&amp;oldid=prev</id>
		<title>Rtuffli: SIGNAL publish from draft v506</title>
		<link rel="alternate" type="text/html" href="https://wiki.signal-earth.org/index.php?title=Anthropogenic_PM2.5_Emissions_in_Afghanistan&amp;diff=551&amp;oldid=prev"/>
		<updated>2026-05-31T02:24:56Z</updated>

		<summary type="html">&lt;p&gt;SIGNAL publish from draft v506&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;!-- SIGNAL_EARTH_INFOBOX_START --&amp;gt;&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot; style=&amp;quot;float:right; clear:right; margin:0 0 1em 1em; width:320px;&amp;quot;&lt;br /&gt;
|+ SIGNAL Earth Structured Data&lt;br /&gt;
|-&lt;br /&gt;
! Object type&lt;br /&gt;
| Damage Signal&lt;br /&gt;
|-&lt;br /&gt;
! SIGNAL Earth ID&lt;br /&gt;
| DS-00846&lt;br /&gt;
|-&lt;br /&gt;
! Observable type&lt;br /&gt;
| —&lt;br /&gt;
|-&lt;br /&gt;
! Unit&lt;br /&gt;
| Gg&lt;br /&gt;
|-&lt;br /&gt;
! Temporal structure&lt;br /&gt;
| —&lt;br /&gt;
|-&lt;br /&gt;
! Monitoring backbone&lt;br /&gt;
| —&lt;br /&gt;
|}&lt;br /&gt;
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&lt;br /&gt;
{{SignalTerm|type=DS|id=DS-00846|label=Anthropogenic PM2.5 Emissions in Afghanistan}} refer to fine particulate matter with a diameter of 2.5 micrometers or less released into the atmosphere as a result of human activities. These emissions are a significant component of air pollution, affecting air quality and human health. In Afghanistan, sources of anthropogenic PM2.5 include combustion processes from residential heating, transportation, industry, and agricultural practices.&lt;br /&gt;
&lt;br /&gt;
Understanding the spatial and temporal patterns of PM2.5 emissions is essential for assessing environmental and public health impacts. The data on these emissions contribute to broader air quality management and environmental monitoring efforts. This information also supports scientific assessments of atmospheric composition and pollutant transport within the region.&lt;br /&gt;
&lt;br /&gt;
Within the global context, Afghanistan&amp;#039;s PM2.5 emissions contribute to regional air pollution dynamics and may influence transboundary air quality. Monitoring and quantifying these emissions provide a foundation for evaluating trends and potential mitigation strategies.&lt;br /&gt;
&lt;br /&gt;
== Geographic / System Context ==&lt;br /&gt;
Afghanistan is a landlocked country located in South-Central Asia characterized by diverse topography, including mountainous regions, arid plains, and river valleys. The country&amp;#039;s varied climate and geography influence the distribution and sources of particulate matter emissions. Urban centers such as Kabul experience higher emissions due to concentrated human activities, while rural areas contribute through biomass burning and agricultural practices. Seasonal variations, including winter heating demands and agricultural cycles, affect emission patterns across the country.&lt;br /&gt;
&lt;br /&gt;
== Monitoring and Measurement ==&lt;br /&gt;
The monitoring of anthropogenic PM2.5 emissions in Afghanistan relies primarily on emission inventories and atmospheric modeling rather than extensive ground-based measurement networks. The Emissions Database for Global Atmospheric Research (EDGAR) provides annual gridded estimates of PM2.5 emissions by country, compiled from various sectoral activity data and emission factors. These inventories integrate information on fuel consumption, industrial activity, transportation, and biomass burning. Remote sensing and satellite observations complement ground data by providing regional aerosol measurements, though direct measurement of emissions remains limited in the region.&lt;br /&gt;
&lt;br /&gt;
Within the SIGNAL system, this phenomenon is treated as a defined environmental signal whose boundaries and measurement conventions are described below.&lt;br /&gt;
&lt;br /&gt;
== Signal Definition ==&lt;br /&gt;
The {{SignalTerm|type=DS|id=DS-00846|label=Anthropogenic PM2.5 emissions}} signal represents the total annual mass of fine particulate matter (PM2.5) emitted by human activities within the national boundaries of Afghanistan. This signal quantifies emissions from combustion processes, industrial sources, transportation, and agricultural residue burning as estimated by the EDGAR inventory. The measurement unit and temporal resolution are defined according to the source inventory standards.&lt;br /&gt;
&lt;br /&gt;
== Boundary Conditions ==&lt;br /&gt;
Boundary inclusions encompass all anthropogenic sources of PM2.5 emissions within Afghanistan&amp;#039;s political boundaries, including residential heating, industrial operations, vehicle exhaust, and agricultural burning. Boundary exclusions omit natural sources of PM2.5 such as wildfires, dust storms, and biogenic emissions, as well as transboundary pollution transported into or out of Afghanistan. Emissions from sources outside the national borders are not included, ensuring the signal reflects domestic anthropogenic contributions only.&lt;br /&gt;
&lt;br /&gt;
== Aggregation Semantics ==&lt;br /&gt;
Geographically, the signal aggregates PM2.5 emissions across the entire territory of Afghanistan, encompassing urban, rural, and industrial areas. Temporally, the aggregation is annual, reflecting total emissions summed over each calendar year. Cross-signal aggregation may involve integration with related environmental signals such as aerosol optical depth and ambient PM2.5 concentration to provide a comprehensive understanding of particulate matter dynamics. Aggregation notes emphasize that the signal is a top-down estimate derived from emission inventories rather than direct measurements.&lt;br /&gt;
&lt;br /&gt;
== Observational Status ==&lt;br /&gt;
Currently, the observational status of anthropogenic PM2.5 emissions in Afghanistan is based on modeled emission inventories such as EDGAR v4.3.2, which provide consistent annual estimates from 1970 to 2012. Ground-based monitoring infrastructure in Afghanistan remains limited, constraining direct observational data. Future SIGNAL releases may incorporate updated emission inventories, enhanced spatial resolution, and integration with satellite-derived aerosol observations to improve accuracy and temporal coverage.&lt;br /&gt;
&lt;br /&gt;
== Related Signals ==&lt;br /&gt;
* Aerosol optical depth&lt;br /&gt;
* Agriculture — Burning - Crop residues Emissions&lt;br /&gt;
* Ambient PM2.5 concentration&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!-- SIGNAL_EARTH_PEOPLE_START --&amp;gt;&lt;br /&gt;
== Key Associated People ==&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Diego Guizzardi&amp;#039;&amp;#039;&amp;#039; (Didesk Informatica / EDGAR collaborator) [Lead author]&lt;br /&gt;
&amp;lt;!-- SIGNAL_EARTH_PEOPLE_END --&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!-- SIGNAL_EARTH_SOURCES_START --&amp;gt;&lt;br /&gt;
== Sources ==&lt;br /&gt;
* [https://essd.copernicus.org/articles/10/1987/2018/essd-10-1987-2018.html Gridded emissions of air pollutants for the period 1970–2012 within EDGAR v4.3.2 — 2018]&lt;br /&gt;
&amp;lt;!-- SIGNAL_EARTH_SOURCES_END --&amp;gt;&lt;/div&gt;</summary>
		<author><name>Rtuffli</name></author>
	</entry>
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