| 长春市大气降尘中重金属的分布特征和来源分析 |
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| 引用本文： | 赵兴敏,赵蓝坡,花修艺.长春市大气降尘中重金属的分布特征和来源分析[J].城市环境与城市生态,2009(4). |
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| 作者姓名： | 赵兴敏 赵蓝坡 花修艺 |
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| 作者单位： | 吉林农业大学资源与环境学院;吉林大学环境与资源学院; |
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| 基金项目： | 吉林省科技厅社会发展重大项目(20070429)资助 |
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| 摘 要： | 对长春市不同区域的33个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Fe>Mn>Zn>Pb、Cu>N i>Cd。降尘中重金属的空间分布为工业区>交通区>商业区>文化区、居民区>农村地区。相对于新城区和农村地区,老城区降尘中重金属的含量较高。富集因子的计算分析表明,Pb、Cd明显受到人为活动的影响,Pb主要来自汽车尾气,Cd主要来源于工业尘;人为活动对Cu、Zn、Mn的贡献占一定比例,但不大;N i为天然源。长春市大气降尘已经受到一定程度的重金属污染,但与国内其他城市相比,降尘中重金属的含量处于较低的水平。
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| 关 键 词： | 大气降尘 重金属 分布特征 富集因子 来源 长春 |
Distribution Characteristics and Sources Analysis of Heavy Metal in Atmospheric Dustfall in Changchun |
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| ZHAO Xing-min,ZHAO Lan-po,HUA Xiu-yi.Distribution Characteristics and Sources Analysis of Heavy Metal in Atmospheric Dustfall in Changchun[J].Urban Environment & Urban Ecology,2009(4). |
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| Authors: | ZHAO Xing-min ZHAO Lan-po HUA Xiu-yi |
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| Institution: | 1.College of Resources and Environment;Jilin Agricultural University;Changchun 130118;China;2.College of Environment and Resources;Jilin University;Changchun 130012;China |
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| Abstract: | The contents of Pb,Cd,Cu,Zn,Ni,Fe and Mn in 33 dustfall samples from Changchun were determined.The concentrations of heavy metals followed order of Fe>Mn>Zn>Pb,Cu>Ni>Cd.Spatial distribution of the heavy metals in dustfall was industrial districts>communication districts>business districts>culture districts>inhabited districts>countryside.The contents of the heavy metals in old city region were higher than in newly built city region and countryside.The result of enrichment factor(EF) analysis indicated that ... |
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| Keywords: | atmospheric dustfall heavy metal distribution characteristic enrichment factor source Changchun |
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