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Characterization of heavy metal concentrations in the sediments of three freshwater rivers in Huludao City, Northeast China
Zheng, Na; Wang, Qichao; Liang, Zhongzhu; Zheng, Dongmei
2008
Conference Name8th International Conference on Mercury as a Global Pollutant
Source PublicationENVIRONMENTAL POLLUTION
Conference DateAUG 06-11, 2006
Conference PlaceMadison, WI
Publication PlaceOXFORD
PublisherELSEVIER SCI LTD
AbstractWuli River, Cishan River, and Lianshan River are three freshwater rivers flowing through Huludao City, in a region of northeast China strongly affected by industrialization. Contamination assessment has never been conducted in a comprehensive way. For the first time, the contamination of three rivers impacted by different sources in the same city was compared. This work investigated the distribution and sources of Hg, Ph, Cd, Zn and Cu in the surface sediments of Wuli River, Cishan River, and Lianshan River, and assessed heavy metal toxicity risk with the application of two different sets of Sediment Quality Guideline (SQG) indices (effect range low/effect range median values, ERL/ERM; and threshold effect level/probable effect level, TEL/PEL). Furthermore, this study used a toxic unit approach to compare and gauge the individual and combined metal contamination for Hg, Pb, Cd, Zn and Cu. Results showed that Hg contamination in the sediments of Wuli River originated from previous sediment contamination of the chlor-alkali producing industry, and Ph, Cd, Zn and Cu contamination was mainly derived from atmospheric deposition and unknown small pollution sources. Heavy metal contamination to Cishan River sediments was mainly derived from Huludao Zinc Plant, while atmospheric deposition, sewage wastewater and unknown small pollution were the primary sources for Lianshan River. The potential acute toxicity in sediment of Wuli River may be primarily due to Hg contamination. Hg is the major toxicity contributor, accounting for 53.3-93.2%, 7.9-54.9% to total toxicity in Wuli River and Lianshan River, respectively, followed by Cd. In Cishan River, Cd is the major sediment toxicity contributor, however, accounting for 63.2-66.9% of total toxicity. (C) 2008 Elsevier Ltd. All rights reserved.
KeywordSediment Sediment Quality Guidelines Huludao City Freshwater
Funding OrganizationUniv Wisconsin Madison, US Geol Survey, Univ Wisconsin La Crosse
Language英语
WOS IDWOS:000257258500015
Citation statistics
Cited Times:183[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.iga.ac.cn/handle/322005/4771
Collection湿地生态系统管理学科组_合作研究组
Recommended Citation
GB/T 7714
Zheng, Na,Wang, Qichao,Liang, Zhongzhu,et al. Characterization of heavy metal concentrations in the sediments of three freshwater rivers in Huludao City, Northeast China[C]. OXFORD:ELSEVIER SCI LTD,2008.
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