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- W2364319645 abstract "This paper took the heavy metals in urban street dust of Tianjin as the research object. Dust samples were collected from 144 sites of urban streets in Tianjin for the heavy metals(Cd, Cr, Cu, Ni and Pb) pollution study. The pollution degree was assessed by the geo-accumulation index, and the risk was assessed by the potential ecological risk index. The results show that the geo-accumulation index of Cd, Cr, Cu, Ni and Pb was 2.78,-0.06, 1.22,-0.20 and 0.96, which was generally at medium pollution level(Ⅳ), non-pollution level(Ⅰ), partial medium pollution level(Ⅲ), non-pollution level(Ⅰ),and slight pollution level(Ⅱ) respectively. The pollution degree of Cd was the most serious. The risk order of heavy metals was CdCuPbNiCr. The potential ecological risk index of Cr, Ni, Pb and Cu was 2.88, 6.51, 14.64 and 17.47 respectively,which revealed that the potential ecological risk of these heavy metals was at low level( Ⅰ). The potential ecological risk index of Cd was 330, at the extremely high level(Ⅴ). Potential ecological risk of total heavy metals pollution was heavy with the comprehensive potential ecological risk index of 371.50." @default.
- W2364319645 created "2016-06-24" @default.
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- W2364319645 date "2015-01-01" @default.
- W2364319645 modified "2023-09-26" @default.
- W2364319645 title "Heavy Metals Pollution and Ecological Risk Assessment on Urban Street Dust of Tianjin" @default.
- W2364319645 hasPublicationYear "2015" @default.
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