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¡¾Ó¢ÎÄÕªÒª¡¿ Black carbon (BC) is defined as the broad continuum of recalcitrant materials produced from biomass burning to fossil fuel combustion. From charred plant residues and charcoal to soot and graphitic black carbon, the chemical and physical properties of this recalcitrant material vary broadly. The charred plant residues and charcoal formed at low temperatures; soot formed during the condensation of hot combustion gases; and graphitic black carbon may have a rock-derived source. There are two mechanisms, photo...

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