台湾二仁溪沉积物和鱼类样本中的多氯二苯并对二噁英/多氯二苯并呋喃及共平面多氯联苯。
PCDD/DFs and coplanar PCBs in sediment and fish samples from the Er-Jen river in Taiwan.
作者信息
Ling Y C, Soong D K, Lee M K
机构信息
Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, R.O.C.
出版信息
Chemosphere. 1995 Aug;31(3):2863-72. doi: 10.1016/0045-6535(95)00150-7.
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.
已对台湾二仁溪沉积物和鱼类样本中的多氯二苯并 - 对二噁英和二苯并呋喃（PCDD/DFs）以及共平面多氯联苯（Co-PCBs）进行了测定。在焚烧场附近采集的沉积物样本显示，PCDD/DFs的毒性当量（TEQ）范围为14 pg/g至14200 pg/g，Co-PCBs的2,3,7,8 - 四氯二苯并 - 对二噁英当量（TCDD-EQ）范围为9 pg/g至1030 pg/g。鱼类样本中PCDD/DFs的TEQ范围为37 pg/g至2084 pg/g，Co-PCBs的TCDD-EQ范围为12 pg/g至120 pg/g。PCDD/DFs的可能来源是排放的多氯联苯、露天焚烧活动和五氯苯酚。发现PCB#126比PCB#77更容易降解。Co-PCBs的TCDD-EQ可根据多氯联苯的总浓度估算。食用从二仁溪捕获的鱼类时，估计每日摄入量为28 pg/kg/天至450 pg/kg/天。
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