title: Investigation of bioaccumulation and biotransformation of polybrominated diphenyl ethers, hydroxylated and methoxylated derivatives in varying trophic level freshwater fishes.
abstract: The concentrations and distributions of polybrominated diphenyl ethers (PBDEs) and their hydroxylated and methoxylated derivatives (OH- and MeO-BDEs) were determined in seven representative fish species from a river in the Republic of Korea. The PBDEs and their derivatives were found to be accumulated in the internal organs of the fish to different extents. PBDEs were preferentially accumulated in the internal organs rather than muscle tissue, and especially, showed increasing accumulation tendencies with increasing bromination level in liver. The OH-BDEs and MeO-BDEs were preferentially accumulated in the liver and gastrointestinal tract, respectively. MeO-BDE concentrations were found to increase according to relative trophic level, suggesting that the PBDE derivatives can be biomagnified to a greater extent than the parent PBDEs in freshwater food webs. In a comparison with the dissolved analyte concentrations in the water that were measured by using semi-permeable membrane devices, the greater uptake of non-ortho substituted MeO-BDEs by fish was observed.
authors.affiliation: Department of Civil and Environmental Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea; Center for Environment, Health and Welfare Research, Korea Institute Science and Technology (KIST), 39-1, Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea.
authors.forename: Un-Jung
authors.initials: UJ
authors.lastname: Kim
authors.affiliation: Department of Biological Sciences, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea.
authors.forename: Hyunbin
authors.initials: H
authors.lastname: Jo
authors.affiliation: National Fisheries Research & Development Institute (NFRDI), 216, Gijanghaeanro, Gijang-Eup, Gijang-Gun, Busan 619-705, Republic of Korea.
authors.forename: In-Seok
authors.initials: IS
authors.lastname: Lee
authors.affiliation: Department of Biological Sciences, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea.
authors.forename: Gea-Jae
authors.initials: GJ
authors.lastname: Joo
authors.affiliation: Department of Civil and Environmental Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea. Electronic address: jeoh@pusan.ac.kr.
authors.forename: Jeong-Eun
authors.initials: JE
authors.lastname: Oh
mesh_terms: D000818:Animals; D001711:Biotransformation; D005399:Fishes / Q000378:metabolism; D020387:Food Chain; D055768:Halogenated Diphenyl Ethers / Q000032:analysis* / Q000378:metabolism; D006900:Hydroxylation; D056910:Republic of Korea; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism
chemical_list: D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical
keywords: Food web; Freshwater; PBDEs; SPMD; Structural analogues