Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Application Assessment of Passive Sampling to Monitor Polybrominated Diphenyl Ethers in Water Environment as Alternative Sampling Method for Grab Sampling

수계 중 폴리브롬화 디페닐에테르 모니터링을 위한 Passive Sampling 적용 및 그랩 시료채취법의 대체 활용가능성 평가

  • Kim, Un-Jung (Department of Civil and Environmental Engineering, Pusan National University) ;
  • Seo, Chang Dong (Water Quality Institute, Water Authority) ;
  • Im, Tae-Hyo (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Oh, Jeong-Eun (Department of Civil and Environmental Engineering, Pusan National University)
  • 김언정 (부산대학교 사회환경시스템공학과) ;
  • 서창동 (부산시 상수도사업본부 수질연구소) ;
  • 임태효 (국립환경과학원 낙동강물환경연구소) ;
  • 오정은 (부산대학교 사회환경시스템공학과)
  • Received : 2014.11.14
  • Accepted : 2015.01.12
  • Published : 2015.01.31
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Abstract

PBDEs (polybrominated diphenyl ehters) are rarely dissolved in water due to their strong hydrophobicity and large molecular mass so not many researches were done in aqueous environment compared to other environmental compartments. However, the mass loading from wastewater treatment plant into aquatic environment, re-suspension from bottom sediment and partitioning from floating particles and colloids may not be negligible. It is, therefore, important but also difficult to investigate PBDEs in water environment. Recent overcoming resolution towards this barrier to monitor hydrophobic organic compounds in aquatic environment is using passive sampling technique like semipermeable membrane device. By using passive sampling, it might be possible to obtain long-term reproducible monitoring result and detect the trace amounts of PBDEs, with controlling fluctuation of surrounding environmental factors during the sampling event. So therefore, this study is purposed to confirm the possibility of using SPMD (semi-permeable membrane device) as water monitoring tool. Grab samples, composite samples and SPMDs were applied in river bank to evaluate the concentration difference and temporal fluctuation by various water sampling method, and to assess the water concentration prediction capability of SPMD for the PBDEs.

폴리브롬화 디페닐에테르는 강한 소수성과 큰 분자량을 지닌 물질로 수체에 쉽게 용존되지 않으며, 이로 인해 다른 환경매체에 비해 수환경에 대한 연구는 많지 않다. 그러나 하 폐수처리장으로부터 수환경으로의 질량부하, 침적토에서의 재부유 현상 그리고 부유 입자 및 콜로이드로부터의 분배현상은 무시할 수 없는 영향을 미칠 것이다. 따라서 수환경 중 폴리브롬화 디페닐에테르를 조사하는 것은 중요하면서도 어려운 작업이다. 최근에 수환경에서 소수성물질을 모니터링 할 때의 어려움을 극복하기 위한 방안으로 반투과성막장비와 같은 수동적 시료채취 기법이 사용되고 있다. 수동적 시료채취를 사용하면 시료채취 기간 동안 주변환경인자의 변동을 조절하며 미량으로 존재하는 폴리브롬화 디페닐에테르를 검출하고 장기간에 거쳐 재현성 있는 모니터링 결과를 얻을 수 있다. 따라서 본 연구에서는 반투과성막장비(SPMD)를 수질 모니터링 장비로서 활용하는 가능성을 확인하고자 하였다. 강둑에서 그랩, 혼합 시료채취법과 SPMD를 적용하여 다양한 수질시료 채취기법에 따른 시간적 변동과 농도 차이를 확인하고 SPMD를 사용하여 폴리브롬화 디페닐에테르의 수환경 중 농도를 예측할 수 있는지 평가하였다.

Keywords

References

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