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The mean annual concentration of fine suspended particles of less than 2.5 microns in diameters (PM2.5) is a common measure of air pollution. The mean is a population-weighted average for urban population in a country, and is expressed in micrograms per cubic meter [mg/m3].

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Related Variables

Parties meeting their commitments and obligations in transmitting information as required by Montreal Protocol on hazardous waste, and other chemicals (% average value) Exports of Recovered/Recycled/Reclaimed (Carbon Tetrachloride) Exports of Recovered/Recycled/Reclaimed (HCFCs) Exports of Recovered/Recycled/Reclaimed (Halons)

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