长春市大气中PM_(2.5)的重金属形态分析  

Speciation Analysis of Heavy Metals in PM_(2.5) of Changchun

作　　者：张美秀[1] 刘宛宜[1] 张振斌[1] 胡莹[1] 刘淼[1] 

机构地区：[1]吉林大学环境与资源学院,长春130012

出　　处：《吉林大学学报（理学版）》2013年第4期735-738,共4页Journal of Jilin University:Science Edition

基　　金：国家科技重大专项基金(批准号:2012ZX07202-009)

摘　　要：利用Tesser连续提取法测定长春市大气中PM2.5的Cu,Zn,Cd,Pb,并分析各元素在酸溶态、铁锰氧化物结合态、有机态和残渣态中的分布特征.结果表明:4种元素的质量浓度Zn>Pb>Cd>Cu;Cu和Zn主要分布在酸溶态,Cd主要分布在酸溶态和铁锰氧化物结合态,Pb主要分布在酸溶态、铁锰氧化物结合态和残渣态.Cu,Zn,Cd and Pb in PM2.5 of Changchun were determined with Tesser extraction method.The content sequence of the four elements is Zn〉Pb〉Cd〉Cu.Elements＇ distribution characteristics in acid solution,iron and manganese oxides,organic state and residue state were analysed.More specifically Cu and Zn were mainly distributed in acid solution;the majority of Cd was in acid solution and iron and manganese oxides;but Pb was in acid solution,iron and manganese oxides and residue in general.

关 键 词：PM2 5 重金属 连续提取法 形态分析 

分 类 号：X831[环境科学与工程—环境工程]