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Population-weighted PM2.5 Exposure
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== Signal Definition == Population-weighted PM2.5 exposure is defined as the mean concentration of fine particulate matter (PM2.5) in micrograms per cubic meter (Β΅g/mΒ³), weighted by the spatial distribution of the human population within a specified geographic area and time period. It represents the average PM2.5 exposure experienced by individuals, accounting for where people live relative to pollution levels. This signal captures the receptor condition within the human domain, reflecting chemical stressor impacts on populations rather than ambient environmental concentrations alone.
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Population-weighted PM2.5 Exposure
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