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- W2362545698 abstract "The species distribution and biological effectiveness of heavy metals (Cd,Pb,Cu and Zn) in contaminated paddy soil and vegetable soil around Caoduikeng mine tailing area of Dabaoshan in Guangdong Province were studied by the method of BCR sequential extraction procedure.The results showed that the total concentrations of Cd,Pb,Cu and Zn in both contaminated soils all exceeded the maximum permissible limits (GB15618-1995,pH6.5,Cd 0.30 mg/kg,Zn 200 mg/kg,Pb 250 mg/kg,Cu 50 mg/kg) that set by State Environmental Protection Agency (SEPA) for soils in China.The species distribution of Cd,Pb,Cu and Zn in both contaminated soils has no obvious different.Cd was mainly dominated by the residual state,it accounts for more than 60% of the total contents,and the each state contents of Cd distributed as follows by the order of residual acid-extractable oxidizable reducible;Pb was mainly dominated by the reducible and residual states,they account for more than 92% of the total contents;Cu was mainly dominated by the residual state,it accounts for more than 59% of the total contents,and the each state contents of Cu distributed as follows by the order of residual reducible acid-extractable oxidizable;Zn was mainly dominated by the residual state,it accounts for more than 90% of the total contents.The highest and the lowest biological effectiveness of heave metals in both soils were Pb and Zn,respectively." @default.
- W2362545698 created "2016-06-24" @default.
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- W2362545698 date "2010-01-01" @default.
- W2362545698 modified "2023-09-25" @default.
- W2362545698 title "Species Distribution and Biological Effectiveness of Heavy Metals in Contaminated Soils of Mine Tailing Area" @default.
- W2362545698 hasPublicationYear "2010" @default.
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