title: Health risk assessment for polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzofurans, and polychlorinated naphthalenes in seafood from Guangzhou and Zhoushan, China.
abstract: This study determined the concentrations of organochlorine contaminants in common seafood in two Chinese coastal cities (Guangzhou and Zhoushan), and assessed the health risk due to the daily consumption of contaminated seafood. Twenty-six pooled samples, belonging to five food categories (fish, bivalves, shrimp, crab, and cephalopods), were purchased from local markets in Guangzhou and Zhoushan in 2003 and 2004. These samples were analyzed for total polychlorinated biphenyls (PCBs), non- and mono-ortho-PCBs (coplanar PCBs), polychlorinated naphthalenes (PCNs), and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs/DFs). The concentrations of total PCBs and coplanar PCBs in fish samples were higher in Guangzhou than in Zhoushan, while the levels of PCNs and PCDDs/DFs were comparable between the two cities. The total daily intake values of dioxin-like compounds were 1.05 and 0.86pg WHO-TEQ/kg body weight in Guangzhou and Zhoushan, respectively. Hazard ratios of non-cancer risk in the two cities were all less than unity.
authors.affiliation: Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
authors.forename: Qinting
authors.initials: Q
authors.lastname: Jiang
authors.forename: Nobuyasu
authors.initials: N
authors.lastname: Hanari
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Miyake
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Okazawa
authors.forename: Ridge K F
authors.initials: RK
authors.lastname: Lau
authors.forename: Kun
authors.initials: K
authors.lastname: Chen
authors.forename: Barbara
authors.initials: B
authors.lastname: Wyrzykowska
authors.forename: Man Ka
authors.initials: MK
authors.lastname: So
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Yamashita
authors.forename: Paul K S
authors.initials: PK
authors.lastname: Lam
mesh_terms: D001572:Benzofurans / Q000032:analysis / Q000633:toxicity; D002681:China; D004785:Environmental Pollutants / Q000032:analysis* / Q000633:toxicity; D005506:Food Contamination / Q000032:analysis*; D006801:Humans; D006841:Hydrocarbons, Aromatic / Q000032:analysis / Q000633:toxicity*; D009281:Naphthalenes / Q000032:analysis / Q000633:toxicity; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000633:toxicity; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000032:analysis / Q000633:toxicity; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000633:toxicity; D018570:Risk Assessment; D017747:Seafood
chemical_list: D001572:Benzofurans; D004785:Environmental Pollutants; D006841:Hydrocarbons, Aromatic; D009281:Naphthalenes; D000072317:Polychlorinated Dibenzodioxins; D011084:Polycyclic Aromatic Hydrocarbons; C023614:dibenzofuran; D011078:Polychlorinated Biphenyls