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太原市大气颗粒物中重金属的污染特征及来源解析
引用本文:杨弘,张君秋,王维,王英特,张勇.太原市大气颗粒物中重金属的污染特征及来源解析[J].中国环境监测,2015,31(2):24-28.
作者姓名:杨弘  张君秋  王维  王英特  张勇
作者单位:山西大学化学化工学院, 山西 太原 030006,山西大学化学化工学院, 山西 太原 030006,山西大学化学化工学院, 山西 太原 030006,山西大学化学化工学院, 山西 太原 030006,山西大学化学化工学院, 山西 太原 030006
摘    要:为了解太原市采暖期大气颗粒物不同粒径中重金属的污染特征及其来源,于2012年10月—2013年2月对环境空气中颗粒物采样,用原子吸收分光光度法测定样品中Fe、Pb、Cu、Ni、Cr、Cd、Mn、Zn等8种元素的含量。结果表明,太原市采暖期重金属浓度从高到低依次为FePbMnZnCrCuNiCd。重金属Pb、Mn、Zn、Ni、Cd主要富集在PM2.5中;Cr主要富集在PM10中;Cu主要富集在PM5中;Fe主要在粒径大于2.5μm的粗粒子中富集。除Zn外,其他7种元素浓度均表现为灰霾期采暖期采暖前。通过主因子分析表明,太原市大气颗粒物中重金属主要来源于冶金、有机合成工业、燃煤、汽车尾气、土壤尘等。

关 键 词:大气颗粒物  重金属  粒径分布  主因子分析
收稿时间:2014/1/13 0:00:00
修稿时间:2014/3/21 0:00:00

The Elemental Pollution Characteristics and Source Apportionment of Atmospheric Particulate in Taiyuan
YANG Hong,ZHANG Jun-qiu,WANG Wei,WANG Ying-te and ZHANG Yong.The Elemental Pollution Characteristics and Source Apportionment of Atmospheric Particulate in Taiyuan[J].Environmental Monitoring in China,2015,31(2):24-28.
Authors:YANG Hong  ZHANG Jun-qiu  WANG Wei  WANG Ying-te and ZHANG Yong
Institution:Chemistry and Chemical Engineering of Shanxi University, Taiyuan 030006, China,Chemistry and Chemical Engineering of Shanxi University, Taiyuan 030006, China,Chemistry and Chemical Engineering of Shanxi University, Taiyuan 030006, China,Chemistry and Chemical Engineering of Shanxi University, Taiyuan 030006, China and Chemistry and Chemical Engineering of Shanxi University, Taiyuan 030006, China
Abstract:In order to understand the pollution characteristics and sources of heavy metals of different size atmospheric particulate in Taiyuan, taking particulates samples from October 2012 to February 2013. Then determining the concentration of heavy metals Fe, Pb, Cu, Ni, Cr, Cd, Mn, Zn by atomic absorption spectrophotometer. The results showed that the contents of heavy metals in atmospheric particulate of Taiyuan City is Fe> Pb> Mn> Zn> Cr> Cu> Ni> Cd. Heavy metals Pb, Mn, Zn, Ni, Cd mainly enriched in PM2.5, Cr enriched in PM10, Cu enriched in PM5, Fe mainly enriched in PM2.5-100. In addition to Zn, the concentrations of Fe, Pb, Cu, Ni, Cr, Cd, Mn are shown as haze period> heating period> before heating period. The main sources for heavy metals in atmospheric particulate were metallurgy, industrial process organic synthesis industry, coal combustion, vehicle emission, soil dust by principal component analysis (PCA).
Keywords:atmospheric particulate matter  heavy metals  particle size distribution  principal factor analysis
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