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因子分析法解析北京市大气颗粒物PM10的来源
引用本文:邹本东,徐子优,华蕾,韩玉朴,董淑英,鹿海峰.因子分析法解析北京市大气颗粒物PM10的来源[J].中国环境监测,2007,23(2):79-85.
作者姓名:邹本东  徐子优  华蕾  韩玉朴  董淑英  鹿海峰
作者单位:北京市环境监测中心,北京,100044
摘    要:2004年10月份在北京市6个采样点采集了大气PM10样品,分析了大气颗粒物的质量浓度、元素组成、离子、有机碳(OC)和元素碳(EC)的浓度,并用因子分析模型对颗粒物的来源进行了研究。结果显示,北京市大气颗粒物的来源主要有6类:建筑水泥尘/机动车尾气尘/燃煤尘、土壤风沙尘、二次粒子尘、工业粉尘、生物质燃烧尘和燃油尘。用模型计算得到的各源对PM10的贡献率分别为建筑水泥尘/机动车尾气尘/燃煤尘占36.57%、土壤风沙尘占16.07%、二次粒子尘占12.33%、工业粉尘占10.29%、生物质燃烧尘占6.07%、燃油尘占3.84%、其它占14.84%。其中建筑水泥/机动车尾气尘/燃煤尘、土壤风沙尘、二次粒子尘、工业粉尘是大气颗粒物PM10的主要来源。实验表明,在缺少源成分谱时可以用因子分析模型来分析大气颗粒物的来源及其相对贡献。

关 键 词:因子分析  源解析  大气颗粒物  北京
文章编号:1002-6002(2007)02-0079-07
修稿时间:2006年9月13日

Sources Apportionment of Atmospheric Particles PM10 in Beijing by Factor Analysis
ZOU Ben-dong.Sources Apportionment of Atmospheric Particles PM10 in Beijing by Factor Analysis[J].Environmental Monitoring in China,2007,23(2):79-85.
Authors:ZOU Ben-dong
Abstract:Atmospheric particulate samples of PM_(10) were collected in the October of 2004 at six sites in Beijing.Mass concentration,elements,ions,organic carbon(OC)and elemental carbon(EC)were analyzed and the data were calculated by factor analysis model to know the contributions of various sources.The result of factor analysis showing that there are six major sources of atmospheric particles in Beijing,including construction dust/motor vehicle exhaust dust/coal combustion dust,soil dust,secondary particles dust,industry dust,biomass burning dust and burning oil dust.Source apportionment results derived from factor analysis model for PM_(10) are construction dust/motor vehicle exhaust dust/coal combustion dust 36.57%;soil dust16.07 %;secondary particles dust 12.33%;industry dust 10.29%;biomass burning dust 6.07%;burning oil dust 3.84%;other sources 14.84%.Construction dust/ motor vehicle exhaust dust/coal combustion dust,soil dust,secondary particles dust,industry dust are the four major sources.The experiment indicating that factor analysis model can be used to estimate the sources and their relative contributions when lack of source profiles.
Keywords:PM10
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