鞍山市冬季大气PM_(2.5)中元素污染特征与来源解析  

Pollution Characteristics and Sources of Elements in PM_(2.5) during Winter in Anshan City

作　　者：王士宝[1,2] 姬亚芹[1,2] 张伟[1,2] 李金[3] 赵杰[1,2] 张蕾[1,2] 王伟[3] 

机构地区：[1]南开大学环境科学与工程学院,天津300352 [2]国家环境保护城市空气颗粒物污染防治重点实验室,天津300352 [3]鞍山市环境监测中心站,辽宁鞍山114004

出　　处：《环境与可持续发展》2017年第2期160-164,共5页Environment and Sustainable Development

摘　　要：本文为探究鞍山市冬季大气细颗粒(PM_(2.5))中元素的污染特征和来源,于2016年1月在鞍山市6个监测点位采集PM_(2.5)样品,对PM_(2.5)载带的元素进行了浓度特征和富集因子分析,并通过因子分析确定了鞍山市PM_(2.5)中污染元素的主要来源。结果表明,K、Fe、Al、Ca、Na、Mg、Zn、Pb元素浓度含量之和占所有检测的14种元素浓度的97.13%;Cd、Zn、Pb、As、Cu五种元素属于极强富集,Ni属于强烈富集,Cr、Ca、V处于显著富集水平,Mg、K、Na、Fe呈现中度富集。因子分析结果表明,鞍山市冬季大气细颗粒物中污染元素主要来源于钢铁冶炼、机动车尾气、燃煤和建筑扬尘的复合型污染源。In order to explore the sources and characteristic of the elements in PM（2.5）during winter of Anshan,PM（2.5）samples were collected in January 2016 and the pollution characteristics and enrichment factors of elements were analyzed. Then the Factor Analysis（ FA） was conducted to determine the main sources of PM（2.5）. The results showed that K,Fe,Al,Ca,Na,Mg,Zn and Pb were the main elements and accounted for 97. 13% of the 14 elements detected. The pollution levels of Cd、Zn、Pb、As、Cu were extremely high enrichment and Ni was very high enrichment. Cr、Ca、V were significant enrichment and Mg、K、Na、Fe were moderate enrichment. The results indicated that the main sources of the pollution elements in PM（2.5）during winter in Anshan were the compound pollution sources of the steel smelting,vehicle exhaust,coal combustion and construction dust by factor analysis.

关 键 词：PM2.5 富集因子 污染特征 因子分析 元素 

分 类 号：X513[环境科学与工程—环境工程]