乌鲁木齐市大气降尘中重金属的分布特征  

Distribution Characteristics of Heavy Metal in Atmospheric Dustfall in Urumqi

作　　者：张克磊[1] 朱建雯[1] 魏疆[2] 

机构地区：[1]新疆农业大学草业与环境科学学院,乌鲁木齐830052 [2]新疆大学资源与环境科学学院,乌鲁木齐830046

出　　处：《环境与可持续发展》2013年第4期73-76,共4页Environment and Sustainable Development

基　　金：国家自然科学基金(41161074)

摘　　要：本文对乌鲁木齐市不同区域的大气降尘中的重金属进行了分析测试,结果表明:大气降尘中重金属含量的大小依次为Zn>Mn>As>Ni>Cr>Cu>Pb>Cd。降尘中重金属的空间分布为商业区>工业区>居民区>文化区>郊区。利用地积类指数法,分析结果表明,元素As受到了严重污染,Cd在工业区受到了重污染。The contents of Pb, Cd, Cu, Zn, As, Cr, Ni and Mn in dustfall samples from Urumqi were determined. The concentrations of heavy metals followed order of Zn 〉 Mn 〉 As 〉 Ni 〉 Cr 〉 Cu 〉 Pb 〉 Cd. Spatial distribution of the heavy metals in dustfall was business districts 〉 industrial districts 〉 inhabited districts 〉 culture districts 〉 suburbs. The result of plot class index analysis indicated that As has been seriously polluted and Cd has been heavily polluted in industrial districts.

关 键 词：空间分布 大气污染 污染评价 

分 类 号：X513[环境科学与工程—环境工程]