Short-chain chlorinated paraffins in marine organisms from the Pearl River Estuary in South China: Residue levels and interspecies differences

• Published in: The Science of the total environment Vol. 553; pp. 196 - 203
• Main Authors: Sun, Runxia, Luo, Xiaojun, Tang, Bin, Li, Zongrui, Huang, Liqian, Wang, Tao, Mai, Bixian
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 15.05.2016
• Subjects: Animals; Aquatic Organisms - metabolism; Bioaccumulation; Bivalvia; Brackish; China; Coilia; Decapoda; Environmental Monitoring; Estuaries; Fishes; Freshwater; Harpadon nehereus; Invertebrates; Marine; Marine organisms; Paraffin - metabolism; Rivers; Short-chain chlorinated paraffins; The Pearl River Estuary; Water Pollutants, Chemical - metabolism; ANE, Sweden, Stockholm; China, People's Rep., Zhu R; China, People's Rep; Marine organisms; Short-chain chlorinated paraffins; Bioaccumulation; The Pearl River Estuary
• ISSN: 0048-9697; 1879-1026
• DOI: 10.1016/j.scitotenv.2016.02.144

There is limited information available on the bioaccumulation of short-chain chlorinated paraffins (SCCPs), a complicated group of persistent organic pollutants (POPs) candidates listed in the Stockholm Convention, in estuarine ecosystem. This study analyzed SCCPs in marine organisms (five fish and six invertebrates) from the Pearl River Estuary in South China. The concentrations of total SCCPs ranged from 210 to 21,000ng·g−1 lipid weight, with relatively higher levels in benthic invertebrates (shrimp, crabs and bivalves) than in non-benthic species (pelagic and mesopelagic fish and squid). SCCPs were biomagnified from prey fish (tapertail anchovy, Coilia mystus) to predator fish (Bombay duck, Harpadon nehereus), and the biomagnification factors (BMFs) of SCCP congeners ranged from 1.1 (C10H16Cl6) to 3.4 (C13H18Cl10). Species-specific homologue group patterns were also observed, with significantly lower proportions of C10 congeners in the shrimp, bivalves and Bombay duck than in the other species. [Display omitted] •SCCPs were measured in marine organisms from the Pearl River Estuary, South China.•∑SCCP levels in the marine species were in the medial level of world figures.•Biomagnification was found between prey fish (tapertail anchovy) and predator fish (Bombay duck).•Interspecies difference was found in the level and composition of SCCPs.