Study On Chemical Composition Features And Sources Apportionment Of Particulate Matter In Nanchang City

With the high development of economy and people standard of living, a lot of industries and enterprises are rising in each city, the quality of automobile and autocycle are increasing year by year, so inhalable particulate pollution is worse; it mainly comes from dindusty and automobile exhaust and soil dust etc, so the apportionment study of inhalable particulate pollution has become the important research field over the past ten years in home and abroad, airborne particle is high in our country, especially the inhalable particulate arouse large-scale pollution in the influence of specific human and environment district. As a result, enhancing the research of inhalable particulate not only has the very styong actuality leading meaning, but also has very high scientific research value.The thesis choose Al, as identification element of burn coal dust; Fe, as identification element of steel metallurgy dust; Ca, as identification element of constructional marerial dust; Ti as identification element of road soil dust; Pb ,as entification element of traffic dust; by the collection of July 2007 and August 2007 of the atmosphere particulate (PM₁₀,M_2.5) sample carry on the particulate density of measurement, analyses the chemistry composition of inorganic elements, using the method of receptor model-chemical mass balance(CMB) to analyse source apportionment of the particulate, it indicates the source of inhalable particulate and source to the contribution of the environment, as to realize the purpose of the prevention of dust pollution.The research find out, the pollution source of inhalable particulate is primarily soil karaburan, burnt smut, automobile off-gas exhaust, dust nuisance in Nanchang city.