| 城市降尘中16种金属元素的含量及安全评价 |
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| 引用本文： | 余莉萍.城市降尘中16种金属元素的含量及安全评价[J].环境科学与管理,2011,36(4):111-114. |
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| 作者姓名： | 余莉萍 |
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| 作者单位： | 上海市杨浦区环境监测站; |
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| 基金项目： | 上海杨浦区环保局“杨浦区城市地表扬尘分布及管理措施研究”基金项目 |
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| 摘 要： | 对上海市杨浦区降尘中16种金属元素的含量进行了调查和分析,结果表明降尘中Cd、Cu、Zn三种元素的含量较高,其平均浓度分别为4.1 mg/kg、1 072.9 mg/kg和3 014.9 mg/kg,是土壤背景值的16.4、42.7和16.0倍;使用地积累指数Igeo评价降尘中金属的污染状况,结果表明Cd、Cu、Zn、Pb四种元素在杨浦区降尘中高度富集,已达到中度污染以上,这可能与杨浦区的交通、工业生产和化石燃料使用状况密切相关。
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| 关 键 词： | 杨浦区 降尘 金属污染 地积累指数 安全评价 |
Concentrations and Safety Assessment of 16 Metals in Dustfall of City |
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| Yu Liping.Concentrations and Safety Assessment of 16 Metals in Dustfall of City[J].Environmental Science and Management,2011,36(4):111-114. |
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| Authors: | Yu Liping |
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| Institution: | Yu Liping(Yangpu Environmental Monitoring Station in Shanghai,Shanghai 200093,China) |
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| Abstract: | Six metals were analyzed in dustfall samples collected from Yangpu district,Shanghai.The levels of Cd,Cu and Zn were as high as 4.1 mg/kg,1 072.9 mg/kg和3 014.9 mg/kg dry weight in dustfall,which were respectively 16.4,42.7 and 16.0 times of those in background soil in Yangpu district.In addition,the contaminant status of metal in dustfall was evaluated using Geoaccumulation index（Igeo）,and the result showed that the metals of Cd,Cu,Zn,Pb were accumulated at and more than medium pollution level.The high contents of metals may be related with traffic,industry and combustion of fossil fuel in Yangpu district,Shanghai. |
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| Keywords: | Yangpu district dustfall metal pollution geoaccumulation index safety assessment |
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