| Ministry of Environmental Protection Promulgated "Ambient Air Quality Standard"(GB3095-2012) in 2012, PM2.5 has been the Primary pollutant in Chang Zhou. To control the Concentration of PM2.5 is anxious.The author has being committing on studying source apportionment of PM2.5 in Chang Zhou city since March 2013. The recipient samples and source samples in six points have been collected, then analysis all the samples, so the author obtains the compositions of the samples,such as: metallic elements, TC, OC, SO42-, NO3-. The pollution characteristics of metallic elements has been studied by EF, source apportionment of PM2.5 also has been researched by CMB. The main tasks are following:The pollution of PM2.5 is serious in Chang Zhou City, the average concentration of PM2.5 is 106.06 μg / m3.(2)The source profiles and recipient samples components were established. TC, SO42-, NO3- and Si are the main components of the particulate matters.(3)The pollution characteristics of metallic elements has been studied by EF, the EF of Na, Al, Ti, V, Cr and Co are smaller then others.(4)The sources of the PM2.5 were analyzed by CMB, the main source of the PM2.5 is secondary inorganic particles(30.53%), coal dust(18.59%), dust(16.94%), the vehicle( 14.59%) and so on.(5) According to the results, the author proposals many measures to control the pollution of PM2.5. |
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