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전국 연안어장 퇴적물 및 양식생물 중 브롬화난연제 (HBCDDs 및 PBDEs) 분포 및 축적특성

Concentration Distributions and Accumulations of Brominated Retardants(HBCDDs and PBDEs) in Marine Sediments and Biota from Farming Areas of Korean Coasts

김상수|성재현|최민규|이인석|임동훈|손지영
한국환경분석학회 (The Korean Society For Environmental Analysis)|2021.06|환경분석과 독성보건 (JOURNAL OF ENVIRONMENTAL ANALYSIS, HEALTH AND TOXICOLOGY)|제24권 제2호|pp. 41-50

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키워드

sedimentsaquaculturebrominated flame retardantsbivalvesbiota-sediment accumulation factor

초록

Marine sediments and biota collected from farming areas of Korean coasts were studied to detect the concentrations of brominated flame retardants(BFRs), hexabromocyclododecane(HBCDD) and polybrominated diphenylethers(PBDEs), and to investigate on their distributions and accumulation patterns. The concentrations of HBCDDs in marine sediments and biota were 15-30 times higher than those of PBDEs. However, the concentrations of HBCDDs in marine sediments were not correlated with those of PBDEs(p > 0.05), and the ratio of HBCDDs to PBDEs in marine sediments were higher in farming areas. The major isomer of HBCDDs in marine sediments was γ-HBCDD(72% of the total HBCDDs), similar to those in technical mixtures(80%) and in expanded polystyrene buoy(70%) for aquaculture. In marine biota, α-HBCDD constituted the major percentage(53%) to the total HBCDDs detected. The major congeners of PBDEs were 183, 47, 99, and 153 in marine sediments and 47, 49, 99, and 154 in marine biota, associated with commercial penta- and octa-BDE mixtures. In this study, according to estimation of the biota-sediment accumulation factor, PBDEs showed a higher bioaccumulation potential compared to HBCDDs, and BDE-47 showed the highest bioaccumulation potential among BFRs.

Abstract

Marine sediments and biota collected from farming areas of Korean coasts were studied to detect the concentrations of brominated flame retardants(BFRs), hexabromocyclododecane(HBCDD) and polybrominated diphenylethers(PBDEs), and to investigate on their distributions and accumulation patterns. The concentrations of HBCDDs in marine sediments and biota were 15-30 times higher than those of PBDEs. However, the concentrations of HBCDDs in marine sediments were not correlated with those of PBDEs(p > 0.05), and the ratio of HBCDDs to PBDEs in marine sediments were higher in farming areas. The major isomer of HBCDDs in marine sediments was γ-HBCDD(72% of the total HBCDDs), similar to those in technical mixtures(80%) and in expanded polystyrene buoy(70%) for aquaculture. In marine biota, α-HBCDD constituted the major percentage(53%) to the total HBCDDs detected. The major congeners of PBDEs were 183, 47, 99, and 153 in marine sediments and 47, 49, 99, and 154 in marine biota, associated with commercial penta- and octa-BDE mixtures. In this study, according to estimation of the biota-sediment accumulation factor, PBDEs showed a higher bioaccumulation potential compared to HBCDDs, and BDE-47 showed the highest bioaccumulation potential among BFRs.

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