title: Assessment of metal contamination in the Hun River, China, and evaluation of the fish Zacco platypus and the snail Radix swinhoei as potential biomonitors.
abstract: The Hun River is a major tributary of the Liao River in the northeast area of China and provides drinking water for 23 million local residents. This study was designed to assess the severity of metal contamination in the Hun River and the potential use of indigenous organisms (the fish Zacco platypus and the snail Radix swinhoei) as biomonitors of metal contamination. Water, sediment, and the native fish and snails were collected at four sampling sites that differed in their physicochemical characteristics and their contamination levels. The samples were analyzed for Cd, Cr, Cu, Ni, Pb, and Zn by ICP-MS. The results showed that although the overall potential ecological risks of the metals were low at our sampling sites, Cd posed a noteworthy ecological risk. Strong correlations were obtained between Cd concentrations in the organisms and in the environment. The results indicated that Z. platypus and R. swinhoei can be useful biomonitoring species for assessing Cd contamination. Biomonitoring with the snail may be most effective when focused on the gonad/digestive tissue (because of the high metal accumulation there), but further work is needed to confirm this.
authors.affiliation: Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.|Institute of Environmental Protection, Shenyang University of Chemical Technology, Shenyang, 100049, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Wu
authors.affiliation: Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
authors.forename: Shaofeng
authors.initials: S
authors.lastname: Wang
authors.affiliation: Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
authors.forename: Hongxing
authors.initials: H
authors.lastname: Chen
authors.affiliation: Key Laboratory of Mariculture and Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, 116023, China.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Jiang
authors.affiliation: Liaoning Key Laboratory of Urban Integrated Pest Management and Ecological Security, Shenyang University, Shenyang, 110044, China.
authors.forename: Hongwei
authors.initials: H
authors.lastname: Chen
authors.affiliation: Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
authors.forename: Mi
authors.initials: M
authors.lastname: Gao
authors.affiliation: Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
authors.forename: Ran
authors.initials: R
authors.lastname: Bi
authors.affiliation: Department of Biology, University of Louisiana at Lafayette, P.O. Box 42451, Lafayette, LA, 70504-2451, USA.
authors.forename: Paul L
authors.initials: PL
authors.lastname: Klerks
authors.affiliation: Liaoning Academy of Environmental Sciences, Shenyang, 110161, China.
authors.forename: He
authors.initials: H
authors.lastname: Wang
authors.affiliation: Guangxi Academy of Fishery Science, Guangxi, 530021, China. lfylzc123@163.com.
authors.forename: Yongju
authors.initials: Y
authors.lastname: Luo
authors.affiliation: Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China. xielt@iae.ac.cn.
authors.forename: Lingtian
authors.initials: L
authors.lastname: Xie
mesh_terms: D000818:Animals; D002681:China; D003530:Cyprinidae / Q000254:growth & development*; D004463:Ecology; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry; D019216:Metals, Heavy / Q000032:analysis*; D018570:Risk Assessment; D045483:Rivers / Q000737:chemistry*; D012908:Snails / Q000254:growth & development*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
keywords: Bioaccumulation; Bioavailability; Metal contamination; Radix swinhoei; Tissue distribution; Zacco platypus