NDLI: Comparison of Heavy Metal Distribution and Bioavailability in Surficial Sediments Collected in the Songhua River, Northeast of China

Content Provider	IEEE Xplore Digital Library
Author	Lei Gao Wenjin Zhao Na Li
Copyright Year	2010
Abstract	Five elements (iron, manganese, copper, zinc and lead) in three surficial sediments (SSs) and three natural surface coating samples (NSCSs) from the Songhua River, northeast of China were analyzed with the modified sequential extraction procedure (MSEP) to compare the metal distribution and bioavailability in the two solid phases. The results indicated that Cu was present mainly in the bound to organic matter fraction; Zn and Pb appeared in the bound to Fe oxides dominantly. The dominant proportion of Fe was in the residual fraction, while Mn was significantly in the non-residual fractions. Bound to Fe oxides, bound to Mn oxides were relatively dominating fractions compared with bound to organic matter fraction for the metals of Cu, Zn and Pb. There were much more levels of metals in the non-residual fractions and more bioavailable speciation in NSCSs compared with SSs. The distributions of Cu, Zn and Pb in the residual fraction, Zn and Pb in the bound to organic matter fraction were found significant correlation with TOC, and Pb in the bound to carbonates fraction may be affected by TOC. High positive correlations between the total amounts of Fe/Mn oxides and Cu and Zn in the bound to Fe/Mn oxides fractions, and Cu in the bound to carbonates fraction were also greatly affected by Fe/Mn oxides.
Starting Page	1
Ending Page	5
File Size	247362
Page Count	5
File Format	PDF
ISBN	9781424447121
ISSN	21517622
DOI	10.1109/ICBBE.2010.5516259
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transportation Solids Educational institutions Iron Rivers Sediments Copper Coatings Zinc Manganese
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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