Primary Particulate Matter Emission Spectrum (IMAGE)

Science China Press

Primary Particulate Matter Emission Spectrum

Caption

Relative contributions of major sources to annual emissions of (A) PM>10, (B) PM2.5–10, (C) PM2.5, (D) BC, and (E) OC from 1960 to 2019. In addition to these listed explicitly, all other sources are summed up as others.   

 

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©Science China Press

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