The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY (한국해양학회지:바다)

The Korean Society of Oceanography (한국해양학회)
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Distribution of Persistent Organic Pollutants(POPs) in Sediment and Organism Collected from Various Culturing Grounds, Korea

국내 양식어장 퇴적물과 생물 중 잔류성유기오염물질 분포

  • baek, Seung-Hong (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI)) ;
  • Lee, In-Seok (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI)) ;
  • Kim, Hye-Seon (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI)) ;
  • Choi, Minkyu (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI)) ;
  • Hwang, Dong-Woon (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI)) ;
  • Kim, Sook-Yang (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI)) ;
  • Choi, Hee-Gu (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI))
  • 백승홍 (국립수산과학원 어장환경과) ;
  • 이인석 (국립수산과학원 어장환경과) ;
  • 김혜선 (국립수산과학원 어장환경과) ;
  • 최민규 (국립수산과학원 어장환경과) ;
  • 황동운 (국립수산과학원 어장환경과) ;
  • 김숙양 (국립수산과학원 어장환경과) ;
  • 최희구 (국립수산과학원 어장환경과)
  • Received : 2012.11.05
  • Accepted : 2012.11.20
  • Published : 2012.11.30
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Abstract

We investigated the concentration levels and evaluated the distributions of 17 polychlorinated dibenzo-p-dioxins and furans(PCDD/Fs), 12 dioxin-like polychlorinated biphenyls(DLPCBs) and 24 polybrominated diphenyl ethers (PBDEs) in sediment and organism from various culturing grounds in Korean coast. The levels of PCDD/Fs, DLPCBs, and PBDEs in sediment samples ranged from 0.03 to 2.9(Mean${\pm}$SD, $1.2{\pm}0.89$) pg $WHO_{2005}$-TEQ $g^{-1}$ dry weight(dw), ND(not detected) to 1.1($0.09{\pm}0.19$) pg $WHO_{2005}$-TEQ $g^{-1}$ dw, and ND to 16.6($2.96{\pm}3.53$) ng $g^{-1}$ dw, respectively. Also, the levels of PCDD/Fs, DLPCBs, and PBDEs in culturing organisms ranged from ND to 0.24($0.07{\pm}0.06$) pg $WHO_{2005}$-TEQ $g^{-1}$ wet weight(ww), ND to 0.11($0.04{\pm}0.04$) pg $WHO_{2005}$-TEQ $g^{-1}$ ww, and 0.05 to 0.29($0.13{\pm}0.06$) ng $g^{-1}$ ww, respectively. The levels of total dioxins(PCDD/Fs+DLPCBs) and PBDEs in sediments from East and South sea were four to seven times higher than those from West sea. PCDD/Fs had dominant contribution(mean, 94%) for TEQ concentration in sediment, whereas relatively higher contribution of DLPCBs(33%) were shown in culturing organism than sediment. BDE209 was a dominant congener in both matrix. The concentrations of PCDD/Fs, DLPCBs and PBDEs were in decreasing trends in Korea coasts compared to previous results.

국내 연안의 다양한 양식장의 퇴적물과 양식생물에 대하여 다이옥신류(PCDD/Fs), 다이옥신류피씨비(DLPCBs), 및 브롬화방염제(PBDEs)의 잔류수준을 조사하고 분포를 평가하였다. 양식장 퇴적물 중 PCDD/Fs, DLPCBs, PBDEs는 각각 0.03~2.9(평균${\pm}$표준편차, $1.2{\pm}0.89$) pg $WHO_{2005}$-TEQ $g^{-1}$ 건중량(dw), 불검출~1.1($0.09{\pm}0.19$) pg $WHO_{2005}$-TEQ $g^{-1}$ dw, 불검출~16.6($2.96{\pm}3.53$) ng $g^{-1}$ dw 수준으로 검출되었다. 또한 양식생물 체내 함유량은 각각 불검출~0.24($0.07{\pm}0.06$) pg $WHO_{2005}$-TEQ $g^{-1}$ 습중량(ww), 불검출~0.11($0.04{\pm}0.04$) pg $WHO_{2005}$-TEQ $g^{-1}$ ww, 0.05~0.29($0.13{\pm}0.06$) ng $g^{-1}$ ww 수준이었다. 국내 연안 중 동해안과 남해안에 위치한 양식장 퇴적물 중 총다이옥신류(PCDD/Fs+DLPCBs)와 PBDEs의 농도는 서해안보다 약 4~7배 높은 수준을 보였다. 퇴적물에서는 총다이옥신류에 대한 PCDD/Fs 기여율이 대부분(평균 94%)을 차지했지만, 양식생물에서는 DLPCBs가 약 33% 수준으로 퇴적물에 비해 높은 기여율을 보였다. PBDEs 중에서는 양식장 퇴적물과 생물 모두에서 BDE209가 가장 높게 검출되었다. 이전 연구와 비교했을 때, 국내연안 퇴적물과 양식생물 중 PCDD/Fs, DLPCBs, PBDEs의 잔류수준은 대체로 감소하는 추세에 있는 것으로 판단된다.

Keywords

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