title: Concentrations, bioaccumulation, and human health risk assessment of organochlorine pesticides and heavy metals in edible fish from Wuhan, China.
abstract: The objective of this study was to determine concentration and bioaccumulation of organochlorine pesticides and heavy metals in edible fish from Wuhan, China, in order to assess health risk to the human via fish consumption. Two edible fish species (Aristichthys nobilis and Hypophthalmichthys molitrix) were collected and analyzed for 11 organochlorine pesticides (OCPs) and eight heavy metals (HMs). Concentrations of ∑HCHs, ∑DDTs, and ∑OCPs in fish samples were in the range of 0.37-111.20, not detected (nd)-123.61, and 2.04-189.04 ng g(-1) (wet weight), respectively. Bioaccumulation factors (BAFs) of OCPs in bighead carp (A. nobilis) were higher than those in silver carp (H. molitrix). Concentrations of ∑HMs in bighead carp and silver carp were 352.48 and 345.20 mg kg(-1) (dw), respectively. Daily exposure of OCPs and HMs for consumers was estimated by comparing estimated daily intake (EDI) with different criteria. The results revealed that the EDIs in our study were all lower than those criteria. Target hazard quotient (THQ) and risk ratio (R) were used to evaluate non-carcinogenic and carcinogenic risks, respectively. As regard to non-carcinogenic effects of the contaminants, hazard quotients (THQ) of OCPs and HMs were both lower than 1.0, implying negligible non-carcinogenic risk via fish consumption in study area. Nevertheless, in view of carcinogenic effects of the contaminants, the total value of risk ratio (R) of OCPs was lower than the threshold of tolerable risk while the total value of risk ratio (R) of HMs was higher than the threshold of tolerable risk due to the high carcinogenic risk ratios of As and Cr, indicating high carcinogenic risks via fish consumption. The results demonstrated that HMs in edible fish from Wuhan, China, especially As and Cr required more attention than OCPs.
authors.affiliation: Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.|University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Cui
authors.affiliation: Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Ge
authors.affiliation: Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.|University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Yindi
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
authors.forename: Yuyi
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China. wangjun@wbgcas.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
mesh_terms: D000328:Adult; D000818:Animals; D002273:Carcinogens / Q000378:metabolism / Q000633:toxicity; D002347:Carps / Q000378:metabolism*; D002681:China; D005506:Food Contamination / Q000032:analysis*; D006262:Health; D006801:Humans; D006843:Hydrocarbons, Chlorinated / Q000378:metabolism* / Q000633:toxicity; D060106:Lakes / Q000737:chemistry*; D019216:Metals, Heavy / Q000378:metabolism* / Q000633:toxicity; D010575:Pesticides / Q000378:metabolism / Q000633:toxicity; D018570:Risk Assessment; D017747:Seafood; D014874:Water Pollutants, Chemical / Q000378:metabolism / Q000633:toxicity
chemical_list: D002273:Carcinogens; D006843:Hydrocarbons, Chlorinated; D019216:Metals, Heavy; D010575:Pesticides; D014874:Water Pollutants, Chemical
keywords: Fish; Health risk; Heavy metals; OCPs; The East Lake; Wuhan