PolyU IR
 

PolyU Institutional Repository >
Civil and Environmental Engineering >
CEE Journal/Magazine Articles >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2560

Title: Acid volatile sulfide and simultaneously extracted metals in the sediment cores of the Pearl River Estuary, South China
Authors: Fang, Tao
Li, Xiangdong
Zhang, Gan
Subjects: Acid-volatile sulfide
Heavy metals
Sediments
Sequential extraction
Simultaneously extracted metals
Issue Date: Jul-2005
Publisher: Elsevier
Citation: Ecotoxicology and environmental safety, July 2005, v. 61, no. 3, p. 420-431.
Abstract: The acid-volatile sulfide (AVS), simultaneously extracted metals (SEM), total metals, and chemical partitioning in the sediment cores of the Pearl River Estuary (PRE) were studied. The concentrations of total metals, AVS, and SEM in the sediment cores were generally low in the river outlet area, increased along the seaward direction, and decreased again at the seaward boundary of the estuary. The amounts of AVS were generally greater in deeper sediments than in surface sediments. SEM/AVS was >1 in the surface sediments and in the river outlet cores. The ratio was <1 in the sediments down the profiles, suggesting that AVS might play a major role in binding heavy metals in the deep sediments of the PRE. The SEM may contain different chemical forms of trace metals in the sediments, depending on the metal reaction with 1M cold HCl in the AVS procedure compared with the results of the sequential chemical extraction. The SEM/AVS ratio prediction may overestimate trace metal availability even in the sediments with high AVS concentrations.
Description: DOI: 10.1016/j.ecoenv.2004.10.004
Rights: Ecotoxicology and Environmental Safety © 2004 Elsevier. The journal web site is located at http://www.sciencedirect.com.
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/2560
ISSN: 0147-6513
Appears in Collections:CEE Journal/Magazine Articles

Files in This Item:

File Description SizeFormat
B50 PREAVS EES 2005.pdfPre-published version324.72 kBAdobe PDFView/Open
Locate publisher version via PolyU eLinks



Facebook Facebook del.icio.us del.icio.us LinkedIn LinkedIn


All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.

 

© Pao Yue-kong Library, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
Powered by DSpace (Version 1.5.2)  © MIT and HP
Feedback | Privacy Policy Statement | Copyright & Restrictions - Feedback