title: PCDD/DFs and coplanar PCBs in sediment and fish samples from the Er-Jen river in Taiwan.
abstract: Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/DFs) and coplanar polychlorinated biphenyls (Co-PCBs) have been determined in sediment and fish samples from the Er-Jen river in Taiwan. Sediment samples collected near the incineration site show TEQ of PCDD/DFs ranging from 14 pg/g to 14200 pg/g and 2,3,7,8-tetrachlorodibenzo-p-dioxins equivalents (TCDD-EQ) of Co-PCBs ranging from 9 pg/g to 1030 pg/g. The fish samples show TEQ of PCDD/DFs ranging from 37 pg/g to 2084 pg/g and TCDD-EQ of Co-PCBs ranging from 12 pg/g to 120 pg/g. Possible PCDD/DFs sources are discharged PCBs, open-air incineration activities, and pentachlorophenol. PCB#126 was found to degrade more readily than PCB#77. TCDD-EQ of Co-PCBs could be estimated from the total concentration of PCBs. A daily intake value of 28 pg/kg/day to 450 pg/kg/day was estimated when consuming fish caught from the Er-Jen river.
authors.affiliation: Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, R.O.C.
authors.forename: Y C
authors.initials: YC
authors.lastname: Ling
authors.forename: D K
authors.initials: DK
authors.lastname: Soong
authors.forename: M K
authors.initials: MK
authors.lastname: Lee
mesh_terms: D000818:Animals; D001572:Benzofurans / Q000032:analysis*; D005399:Fishes; D005506:Food Contamination / Q000032:analysis; D005618:Fresh Water / Q000737:chemistry*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D013045:Species Specificity; D013624:Taiwan; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D001572:Benzofurans; D000072317:Polychlorinated Dibenzodioxins; D014874:Water Pollutants, Chemical; C023614:dibenzofuran; D011078:Polychlorinated Biphenyls