摘要
对乌鲁木齐市不同功能区大气降尘中的重金属采用ICP-AES(电感耦合等离子体原子发射光谱)进行分析测试。结果表明:夏季大气降尘中重金属的含量由高至低依次为:Cr>Mn>Zn>As>Pb>Ni>Cd。重金属在不同功能区的总体分布特征表现为商业区>工业区>居民区>文化区>郊区。利用地积类指数法,分析结果表明大气降尘中As、Cr为重污染,Zn、Ni、Cd、Pb为中等污染。
The heavy metals in air dustfall of different functional areas in Urumqi were analyzed and tested by CP - AES （ inductively coupled plasma-atomic emission spectrometry）. The results show that the content of heavy metals in atmospheric dustfall was in the order： Cr 〉 Mn 〉 Zn 〉 As 〉 Pb 〉 Ni 〉 Cd and the overall distribution characteristics of heavy metals in different functional areas were in the order： commercial 〉 district 〉 industrial area 〉 residential area 〉 cultural region 〉 suburb. Based on the geoaccumulation index, in the air dustfall As and Cr was in serious pollution, but Zn, Ni, Cd and Pb was in moderate pollution.
出处
《环境工程》
CAS
CSCD
北大核心
2014年第2期98-101,106,共5页
Environmental Engineering
基金
国家自然科学基金(41161074)
关键词
空间分布
大气污染
污染评价
spatial distribution
atmospheric pollution
pollution evaluation
