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

The Korean Society of Oceanography (한국해양학회)
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Concentrations and Distribution Patterns of PCDDs, PCDFs, DL-PCBs, PBDEs in Sediments from Ulsan Bay

울산만 퇴적물 내 PCDDs, PCDFs, DL-PCBs, PBDEs의 잔류수준과 분포패턴

  • 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)) ;
  • Choi, Minkyu (Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI)) ;
  • Lee, Boo-Han (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) ;
  • 최민규 (국립수산과학원 어장환경과) ;
  • 이부한 (국립수산과학원 어장환경과) ;
  • 황동운 (국립수산과학원 어장환경과) ;
  • 김숙양 (국립수산과학원 어장환경과) ;
  • 최희구 (국립수산과학원 어장환경과)
  • Received : 2013.09.05
  • Accepted : 2013.11.13
  • Published : 2013.11.28
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Abstract

We investigated the concentrations and distribution patterns of 17 polychlorinated dibenzo-p-dioxins/dibenzofurans(PCDD/Fs), 12 dioxin-like polychlorinated biphenyls(DL-PCBs) and 24 polybrominated diphenyl ethers(PBDEs) in sediments from Ulsan Bay in Korea. The concentrations of PCDD/Fs, DL-PCBs, and PBDEs in 33 sediment samples ranged from 0.11 to 4.86($1.81{\pm}1.04$) pg $WHO_{2005}$-TEQ $g^{-1}$ dry weight(dw), 0.06 to 44.2($4.02{\pm}7.99$) pg $WHO_{2005}$-TEQ $g^{-1}$ dw, and 2.81 to 63.8($19.4{\pm}13.9$) ng $g^{-1}$ dw, respectively. DL-PCBs had dominant contributions(mean, 88%) of total TEQ concentrations in sediment. The concentrations of target compounds in inner locations were higher than those in outer locations in Ulsan Bay (p<0.05). The dominant contribution of highly chlorinated DD/Fs in sediment was associated with combustion process from industrial complexes. Distribution pattern of DL-PCBs was similar with those of commercial PCB products. BDE209 was a dominant congener in sediment, suggesting high use amount of commercial deca-BDE product in surrounding areas.

울산만 내 퇴적물에 대하여 다이옥신/퓨란류(polychlorinated dibenzo-p-dioxins/dibenzofurans, PCDD/Fs)와 다이옥신류 피씨비(dioxin-like polychlorinated biphenyls, DL-PCBs), PBDEs(polybrominated diphenyl ethers)의 잔류수준을 조사하고 분포를 평가하였다. 33개 정점에서 채취한 퇴적물 중 PCDD/Fs, DL-PCBs, PBDEs는 각각 0.11~4.86(평균${\pm}$표준편차, $1.81{\pm}1.04$) pg $WHO_{2005}$-TEQ $g^{-1}$ 건중량(dw), 0.06~44.2($4.02{\pm}7.99$) pg $WHO_{2005}$-TEQ $g^{-1}$ dw, 2.81~63.8($19.4{\pm}13.9$) ng $g^{-1}$ dw 수준으로 검출되었다. 총 다이옥신류(PCDD/Fs+DL-PCBs)에 대하여 DL-PCBs가 약 88%로 PCDD/Fs에 비해 높은 기여율을 나타내었다. 또한, 울산만 내부에 위치한 정점의 퇴적물은 외부 정점에 비해 높은 농도수준을 보였다 (p<0.05). 총 다이옥신류 중 PCDD/Fs는 고염소의 DD/Fs에서 높은 기여율을 차지하였으며, 이성질체의 분포패턴은 연소공정의 영향이 큰 공업지역 퇴적물의 특성을 나타내었다. DL-PCBs는 PCB77, -105, -118가 주요 이성질체로써, 상업용 PCB 제품과 분포특성이 유사하게 나타났다. 또한, 퇴적물 내 PBDEs 분포에서 BDE209가 주요 이성질체로 나타났으며, 이는 상업용 deca-BDE 제품의 사용량에 의한 영향으로 판단된다.

Keywords

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