대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제32권5호
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  • Pages.427-436
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  • 2010
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
권호 표지

마산만 표층퇴적물 내의 폴리브롬화디페닐에테르(PBDEs)의 공간적 분포 및 오염도평가

Spatial Distribution and Residual Consistency Assessment of PBDEs in the Surface Sediment of the Masan Bay

  • We, Sung-Ug (Department of Environmental Engineering, Kyungnam University) ;
  • Yoon, Cho-Hee (Department of Environmental Engineering, Kyungnam University) ;
  • Min, Byung-Yoon (Department of Environmental Engineering, Kyungnam University)
  • 투고 : 2009.12.14
  • 심사 : 2010.04.27
  • 발행 : 2010.05.31
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초록

본 연구는 마산만 특별관리해역 관리범위에 속해있는 총 18개 지점을 선정하여 표층 퇴적물 내 폴리브롬화디페닐에테르(PBDEs)의 공간적 농도분포와 오염경로를 조사하였다. 22개의 PBDE 이성질체가 검출되었으며, BDE-209는 가장 주된 이성질체로 검출되었다. BDE-209와 ${\Sigma}_{21}$PBDEs (BDE-209를 제외한 나머지 이성질체의 합)의 농도범위는 각각 2.32~64.2 ng/g, 0.72~8.24 ng/g이었다. 마산만에서 BDE~209 및 ${\Sigma}_{21}$PBDEs의 공간적 농도분포는 내만에서 외만으로 갈수록 감소하였다. PBDEs의 주오염원은 내만의 유입하천수과 하수처리장 방류수이었다. 마산만에서 PBDEs의 오염 수준을 결정하는 주요 인자는 육상기인 오염원 거리와 해수의 유동에 따른 퇴적물의 이동성 및 특성으로 나타났다.

A total of 18 surface sediments within the special conservation zone in the Masan Bay were analyzed to investigate the spatial distribution and polluted pathway of polybrominated diphenyl ehters(PBDEs). Twenty-two PBDE congeners were detected and brominated diphenyl ether-209 (BDE-209) among them was predominant. The concentrations of BDE-209 and ${\Sigma}_{21}$PBDEs (sum of 21 PBDE congeners without BDE-209) ranged from 2.32 to 64.2 ng/g and from 0.72 to 8.24 ng/g, respectively. The spatial distribution of both BDE-209 and ${\Sigma}_{21}$PBDEs showed a negative gradient from the inner to the outer Bay, indicating that the source of PBDEs might be mainly located inside the Bay such as streams and an effluent of wastewater treatment plants. It was seemed likely that the major parameters determining levels of PBDEs in the Masan Bay were the distance discharging from their sources as well as the characteristics and movement of sediments due to the flow of sea water.

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