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。
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.
出处
《环境科学与管理》
CAS
2011年第4期111-114,共4页
Environmental Science and Management
基金
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
关键词
杨浦区
降尘
金属污染
地积累指数
安全评价
Yangpu district
dustfall
metal pollution
geoaccumulation index
safety assessment
