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《Scientia Meteorologica Sinica》 2005-06
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A SOURCES APPORTIONMENT OF AEROSOLS PM_(2.5) OVER THE URBAN AND SUBURB AREAS OF NANJING

Fan Shuxian~(1) Xu Jianqiang~(2) Zheng Youfei~(2) Xie Xuejian~(2) (1 Jiangsu Province Key Laboratory of Meteorological Disaster and Environmental Variation,NUIST,Nanjing 210044)(2 Department of Environmental Sciences & Engineering,NUIST,Nanjing 210044)  
Sampled in a central urban and a suburb area of Nanjing on a seasonal basis were PM_(2.5) particles away from and directly at the principal discharging sources,of which chemical compositions were analyzed by means of X-ray fluorescence and the contributions of sources to PM_(2.5) pollutants calculated by the Chemical Mass Balance(CMB) model.Evidence suggests that maximum sources responsible for the species were dust and those from construction sites in the city,with their contributions of some 70% of total and those of metallurgy and coal burning reaching 15% only whereas the maximum sources of pollutants were dusts and particles from burning coal in the northern suburb where contribution of burned coal particles exceeds that of construction dusts but ranks next to that of dusts,with dusts from metallurgical origin less than 8% in contribution.These findings provide a policy-making basis for bringing the PM_(2.5) sources under control in the urban-suburb development.
【Fund】: 南京信息工程大学科研基金(编号:QD08);; 江苏省青蓝工程项目资助
【CateGory Index】: X513
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