大气降水重金属含量特征及来源分析  

Characteristics and source analysis of heavy metals in atmospheric precipitation of Boyang Lake basin

作　　者：胡春华[1,2] 柯丽[1] 童乐[1] 周文斌[1] 

机构地区：[1]南昌大学鄱阳湖环境与资源利用教育部重点实验室,江西南昌330047 [2]江西省水利科学研究院,江西南昌330029

出　　处：《环境污染与防治》2012年第12期26-30,共5页Environmental Pollution & Control

基　　金："十一五"国家科技支撑计划重点项目(No.2007BAB23CO2);国家自然科学基金资助项目(No.40672159;No.41040032);国家水体污染控制与治理科技重大专项项目(No.2008zx07526-008-03);国际科技合作资助项目(No.2006DFB91920)

摘　　要：于2010年1月至12月采集鄱阳湖流域8个县市的大气降水样品,用原子吸收分光光度计测定大气降水中溶解态Pb、Cu、Zn、Cd、Cr、Fe等重金属离子,阐述鄱阳湖流域大气降水中重金属含量及分布特征,并分析各种重金属来源。结果表明,Pb年际平均质量浓度为9.53μg/L,Cu为11.32μg/L,Zn为33.73μg/L,Cd为1.55μg/L,Cr为9.09μg/L,Fe为142.65μg/L。Pb、Cu、Cd、Cr受人为因素影响较大,主要来源于第二产业和第三产业,Zn和Fe受人类影响较小,Zn主要来源为天然源,Fe来源于混合源。Precipitation samples were collected from 8 cities and counties of Poyang Lake basin during January to December of 2010. Heavy metal ions （Pb, Cu, Zn, Cd, Cr and Fe） in atmospheric precipitation were detected by atomic absorption spectrophotometer to investigate the concentration and distribution characteristics of heavy metals in precipitation of Boyang Lake basin, the contamination source of these heavy metals were also analyzed. The results indicated that the annual mean concentration of Pb, Cu, Zn, Cd, Cr and Fe was 9.53, 11.32, 33.73, 1.55, 9.09, 142.65 μg/L, respectively. Pb, Cu, Cd and Cr were major influenced by human factors, the second and the tertiary industry were the main source of these contamination. Zn and Fe in atmospheric precipitation were little affected by the human being, Zn was mainly from natural source and Fe was originated from mix source.

关 键 词：大气降水 重金属 鄱阳湖流域 来源分析 

分 类 号：X832[环境科学与工程—环境工程]