| This research analyzed the influence of natural factors and the development of society and economy to the air pollution,the air pollutions discharge and the ambient air quality.Based on the analysis,we collected the latest data of air samples,established the source spectrum of atmospheric particles and the chemical components of PM2.5,analyzed the sources of PM2.5,which is the primary pollutant in Hangzhou City through combination of the list of the pollution sources= and CMB model.The results indicated that different air pollutants had different contribution to the PM2.5 of Hangzhou City.The order of the contribution of different sources from high to low is:motor vehicles contributes 28%,industrial productions(includes industrial boilers and kilns pollution,production process pollution and etc.)22.9%,dust(includes bare surface,constructions,road dust,soil dust,sand blown and so forth)21.9%,coal burned(coal fired power plant and coal fired by residents)18.4%,others(biomass burning,catering fumes,sea salt particles,agriculture productions and etc.)8.8%. |
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