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北京市大气PM10源解析研究
引用本文:陈添,华蕾,金蕾,徐子优,王洪光,白俊松,刘卫红,胡月琪,林安国.北京市大气PM10源解析研究[J].中国环境监测,2006,22(6):59-63.
作者姓名:陈添  华蕾  金蕾  徐子优  王洪光  白俊松  刘卫红  胡月琪  林安国
作者单位:北京市环境监测中心,北京,100044
摘    要:于2004年在北京市定陵、车公庄、古城、亦庄、房山和奥体中心6个采样点采集大气PM10环境样品,针对北京市颗粒物主要排放源采集土壤尘、建筑水泥尘、燃煤等污染源PM10样品,分别对其中的无机元素、离子、有机碳(OC)和元素碳(EC)进行测定。采用代表北京市颗粒物主要排放源PM10组分特征的成分谱,利用CMB受体模型对PM10来源进行解析。结果表明,PM10的最大来源为土壤尘,其它贡献源类依次为燃煤排放、机动车/燃油排放、二次粒子(SO42-、NO3-和NH4 )、建筑水泥尘。污染源贡献具有明显的季节变化,并存在一定的地域变化。

关 键 词:源解析  CMB受体模型
文章编号:1002-6002(2006)06-0059-05
修稿时间:2006年9月13日

Research on PM10 Source Apportionment in Beijing
CHEN Tian.Research on PM10 Source Apportionment in Beijing[J].Environmental Monitoring in China,2006,22(6):59-63.
Authors:CHEN Tian
Abstract:Ambient samples of PM_(10) were collected at Dingling,Chegongzhuang,Gucheng,Yizhuang,Fangshan and Aotizhongxin in Beijing in 2004.Main source samples of PM_(10) such as soil dust,construction cement dust,and coal burning were collected in Beijing.Inorganic elements,ions,OC/EC of all samples were determined.A chemical mass balance(CMB) receptor model using representative profiles was applied in this study to apportion source contributions to ambient PM_(10) in Beijing.The results showed that the major source of PM_(10) in Beijing was soil dust,and other sources in sequence were coal burning,vehicle exhaust,secondary ions(SO~(2-)-4,NO~--3,and NH~ -4) and construction cement dust.The seasonal variations of source contributions were distinct,and spatial variations were perceptible.
Keywords:PM10
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