摘要
采用长春市2011—2012年期间非采暖期和采暖期8个监测点位的40个样本数据,应用主因子分析/绝对主因子分析法进行源解析研究,得到以下结论:通过主因子分析法识别长春市PM10的三个主要来源,分别是城市综合扬尘/其他未知尘源、道路尘/燃煤尘以及土壤风沙尘/机动车尾气。应用绝对主因子法计算出各污染源对PM10中各化学组分的贡献量和贡献率,并且通过绝对主因子分析法得到的解析值与监测值之间的拟合程度较好。基本解释了监测值;城市综合扬尘/其他未知尘源占51%,道路尘/燃煤尘占41%,土壤风沙尘/机动车尾气尘占8%。
Absolutely principal component analysis（APCA） method was used to qualitatively analyze the data of PM10 samples from the heating and unheating periods of 2011 to 2012 at the 8 Changchun atmospheric monitoring sites for the purpose to obtain the different source apportionments and contributions of PM10. The result shows that on the city＇ s perspective, PM10 in Changchun City come from three main sources, which respectively are city＇ s combined dust/other unknown dust 51%, road dust/coal dust 41%, soil dust/vehicle exhaust 8%. The research has important implications to a full grasp on the air pollution in Changchun City and the formulation of relevant pol- lution control measures.
出处
《科学技术与工程》
北大核心
2013年第14期3947-3950,共4页
Science Technology and Engineering
基金
"十二五"国家科技重大专项
(2012ZX07208)资助
关键词
PM10
源解析
主因子分析
绝对主因子分析
PMlo source apportionment principal component analysis/absolutely principalcomponent analysis
