EFFECT OF HIGHLY CONCENTRATED INORGANIC SEED AEROSOLS ON SECONDARY ORGANIC AEROSOL FORMATION

摘要

Secondary organic aerosols(SOAs)are produced through oxidation of volatile organic compounds(VOCs)followed by the gas-particle partitioning process of semivolatile products.It can cause a number of environmental and geophysical effects such as toxicity to public health,climate change and visibility degradation.As a major component of PM_(2.5)(particle matters with an aerodynamic diameter less than 2.5 mu m)in urban and rural atmosphere,SOAs account for 20 to 50% of fine organic PM,up to 70% in smog episodes.