Content Characteristics of Heavy Metal and Health Risk Assessment of Road Dust in Suzhou City
In this paper,Suzhou city was taken as an example to explore the level and distribution of heavy metal content in road dust through field sampling and laboratory analysis of distribution.On this basis,the health risk assessment mode was used to assess the health risks of heavy metals in road dust in Suzhou City.The results showed that the heavy metals of road dust V,Cr,Mn,Cu,Zn,Pb,Hg,and Ni were 100.60,142.60,491.32,37.12,267.80,63.08,0.101304,respectively,and the average of 20.33452 mg ? kg-1 in Suzhou.In addition to Mn and Ni,the other elements were higher than the national (CG) and Anhui (CS) background values of heavy metals in soil.V,Mn,Zn,Cu,Pb average content of the highest value in the business district,Hg,Cr highest value appeared in the industrial zone.Eight heavy metals in children and adults in the non-carcinogenic risk index is less than 1 in road dust of Suzhou City.The value of non-cancer risk of Cr is maximal and Hg is minimal.Cr and Ni of carcinogenic heavy metals were lower than 10-6 carcinogenic risk indexes,it does not pose a carcinogenic hazard to humans.
road dust heavy metals content features health risk assessment
Xiaoyu Zhu Ding Ma
School of Earth Sciences and Engineering, Suzhou University, Suzhou 234000 School of Source and Environment Engineering, Hefei University of Technology, Hefei 230009, China
国际会议
合肥
英文
185-192
2014-05-16（万方平台首次上网日期，不代表论文的发表时间）