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Acid volatile sulfide and simultaneously extracted metals in the sediment cores of the Pearl River Estuary, South China
Fang, T; Li, XD; Zhang, G; Li, XD, Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
2005-07-01
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
Volume61Issue:3Pages:420-431
AbstractThe 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 1 M 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. (c) 2004 Elsevier Inc. All rights reserved.; 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 1 M 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. (c) 2004 Elsevier Inc. All rights reserved.
SubtypeArticle
KeywordAcid-volatile Sulfide Heavy Metals Sediments Sequential Extraction Simultaneously Extracted Metals
DepartmentHong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
Subject AreaEnvironmental Sciences ; Toxicology
DOI10.1016/j.ecoenv.2004.10.004
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS SubjectEnvironmental Sciences ; Toxicology
WOS IDWOS:000229849400014
WOS KeywordAQUATIC SEDIMENTS ; SEQUENTIAL EXTRACTION ; QUALITY CRITERIA ; ANOXIC SEDIMENTS ; TRACE-METALS ; PORE-WATER ; BIOAVAILABILITY ; TOXICITY ; PROFILES ; LAKE
Citation statistics
Cited Times:81[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9236
Collection期刊论文
Corresponding AuthorLi, XD, Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
Affiliation1.Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
Recommended Citation
GB/T 7714
Fang, T,Li, XD,Zhang, G,et al. Acid volatile sulfide and simultaneously extracted metals in the sediment cores of the Pearl River Estuary, South China[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2005,61(3):420-431.
APA Fang, T,Li, XD,Zhang, G,&Li, XD, Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China.(2005).Acid volatile sulfide and simultaneously extracted metals in the sediment cores of the Pearl River Estuary, South China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,61(3),420-431.
MLA Fang, T,et al."Acid volatile sulfide and simultaneously extracted metals in the sediment cores of the Pearl River Estuary, South China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 61.3(2005):420-431.
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