摘要
采集了南京市区不同的路面积尘试样,采用富集因子法对南京市区路面积尘的颗粒物元素进行了污染评价,并对其来源进行了分析与判定。结果表明,南京市区路面积尘中重金属元素Zn污染级别达到5级,污染极为严重,Pb元素的污染级别达到4级以上,Pb元素和S元素的污染都非常严重,这些元素主要来源于燃煤、金属冶炼及汽车尾气等。研究结果为降低南京市区路面积尘的污染物提供了可靠依据。
Different samples of the road dust are collected in Nanjing city, the pollution assessment of the elements of the road dust in the city and the analysis and determination of the pollution sources are conducted by the enrichment of factors. The results reveal that the pollution of heavy-metal element Zn is the most serious, the pollution level reaching level V; the pollution of element Pb and S of the road dust in Nanjing are very serious, the pollution level of element Pb reaching level IV. The main sources of these elements are from the coalburning, metal smelting and automobile exhaust. The results provide a scientific basis for reducing the pollution of the road dust in the city.
出处
《苏州科技学院学报（工程技术版）》
CAS
2010年第1期16-19,共4页
Journal of Suzhou University of Science and Technology （Engineering and Technology）
关键词
路面积尘
富集因子
元素
road dust
enrichment factors
element
