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.
出处
《环境污染与防治》
CAS
CSCD
北大核心
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)
关键词
大气降水
重金属
鄱阳湖流域
来源分析
atmospheric precipitation
heavy metals
Poyang Lake basin
source analysis