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- W2387495831 abstract "The pollution characteristics,sources and risk of heavy metals in the surface sediments of Luan River System( LRS),a typical clean river of Haihe Basin were investigated. The results showed the mean concentrations of Cd,Cr,Cu,Ni,Pb and Zn in the sediment samples were 0. 31,104. 53,34. 47,29. 03,34. 92 and 86. 47 mg·kg- 1,respectively,and most of them were higher than the soil background values except Ni. Enrichment factor( EF) values of these metals revealed that Cd and Pb in the mountain area of LRS( EF = 4. 01 and 1. 94,respectively) were mainly from anthropogenic sources( agriculture and forestry fertilization),and Cr,Cu,Ni and Zn in the whole LRS were mainly from natural sources( EF = 0. 88、1. 28、0. 75 and0. 88). Potential ecological risk( PER) indexes of individual elements( Eir) and comprehensively( RI) were calculated,and the orders of the average Eir for the studied metals were Cd Pb Cu Ni Cr Zn. Although Cd posed high PER( Eir= 98. 37),the mean RI values showed low PER to the local ecosystem in the whole LSR( RI = 123. 27)." @default.
- W2387495831 created "2016-06-24" @default.
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- W2387495831 date "2015-01-01" @default.
- W2387495831 modified "2023-09-26" @default.
- W2387495831 title "Heavy metal pollution of the surface sediments in a typical clean river system of Haihe Basin" @default.
- W2387495831 hasPublicationYear "2015" @default.
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