%0 Journal Article
%T Source Apportionment on Fine Particles in Beijing<br>北京市大气细粒子的来源分析
%A Song Yu
%A Tang Xiaoyan
%A Fang Chen
%A Zhang Yuanhang
%A Hu Min
%A Zeng Limin
%A <br>宋宇
%A 唐孝炎
%A 方晨
%A 张远航
%A 胡敏
%A 曾立民
%J 环境科学
%D 2002
%I 
%X The positive matrix factorization(PMF)method was used to apportion the sources for fine particles in Bejing.The data were obtained from four samplings from 1999 to 2000.The number of this data set was 40.The chemical compositions used in analysis include element carbon(EC),organics,SO42-,F-,Cl-,Fe,Ca,K,Mg,Al,Na,Zn,Mn,Ti,Pb,Ba and P.Six main sources,soil dust,construction dust,secondary source(by photochemical action),biomass burning,motor vehicle and coal burning were found.
%K source apportionment
%K positive matrix factorization
%K fine particles (PM2
%K 5)
%K Beijing<br>源解析
%K 正定矩阵分解(PMF)方法
%K 细粒子(PM2.5)
%K 北京市
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=4FAAEB289BE081C3&yid=C3ACC247184A22C1&vid=EA389574707BDED3&iid=B31275AF3241DB2D&sid=708DD6B15D2464E8&eid=7801E6FC5AE9020C&journal_id=0250-3301&journal_name=环境科学&referenced_num=55&reference_num=6