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- W2350970399 abstract "The occurrence and accumulation of 15 heavy metals,Cd,Cu,Pb,Zn,Cr,Tl,V,Mn,C,Ni,Sr,Ag,Sb,Sn and Mo in the sediments collected from main tributaries in the Three Gorges Reservoir were analyzed.Meanwhile the potential ecological risks of these heavy metals were calculated and assessed using Nemerow Index method,index of geoaccumulation(Igeo) as well as Lars Hakanson Method based on concentrations measured in this study.The results indicated that(1) the Three Gorges reservoir was increasingly polluted by Cd,Zn and Cu,with concentrations ranging from 0.36-1.22 mg/kg,55.8-182 mg/kg and 24.0-93.1 mg/kg,respectively;(2) Nemerow Index and Igeo disclosed the obvious accumulation of Ag,Sb and Sn;(3) Nemerow Index and RI values in this area varied from 3.41-11.1 and 204-568,respectively,implying heavily pollution by heavy metals and resultant high ecological risks in the studied area,which were mainly from Cd;(4) The pollution characteristic of multi-metals in this section was mainly related to Cd." @default.
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- W2350970399 date "2014-01-01" @default.
- W2350970399 modified "2023-09-24" @default.
- W2350970399 title "The occurrence,accumulation and preliminary risk assessment of heavy metals in sediments from the main tributaries in the Three Gorges Reservoir" @default.
- W2350970399 hasPublicationYear "2014" @default.
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