Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Analysis of butyltin compounds in Crassostrea gigas and Tapes philippinarum on the korean coast

한국연안의 참굴 및 바지락 속에 존재하는 부틸주석화합물의 분석

  • Received : 2009.05.06
  • Accepted : 2009.09.22
  • Published : 2009.10.25
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Abstract

Tributyltin (TBT) use has been prohibited by the IMO (International Maritime Organization), as well as Korea, since 2003. This prohibition has affected a gradual reduction in TBT use in maritime environs (seawater, sediment, and biosamples) in several countries. In this study, Crassostrea gigas (oyster) and Tapes philippinarum (manila clam) were chosen and measured for butyltin compound concentrations to verify TBT pollution levels since its 2003 ban. Specimens were taken directly from farms for concentration measurement, where Crassostrea gigas and Tapes philippinarum are cultivated, as well as prevalent locations predicted to have been polluted. Concentrations of MBT, DBT, and TBT of Crassostrea gigas were measured to be N.D -N.D., N.D. -N.D., and N.D. -60.21 ng Sn $g^{-1}$ (wet wt), respectively. Regarding Tapes philippinarum, MBT, DBT, and TBT were N.D. -12.27 ng Sn $g^{-1}$ (wet wt), N.D. -45.95 ng Sn $g^{-1}$ (wet wt), and N.D.-7.30 ng Sn $g^{-1}$ (wet wt), respectively. For this research, a correlative study was conducted to determine butyltin compound concentration in Crassostrea gigas at the locations where measurements were made in 1994 to determine to what extent TBT pollution level decreased. A decrease in all 7 sites was observed. In 4 of the 7 samples, butyltin compounds were measured to be below the detection limit, while that of the Tapes philippinarum did not appear high compared to foreign research data.

IMO (International Maritime Organization)와 한국은 2003년을 기점으로 하여 TBT의 사용을 전면 금지 하였다. 이 금지를 통하여 몇몇 나라에서는 해양환경(바닷물, 퇴적물, 굴)에서 TBT의 오염도가 차츰 감소되고 있는 것을 확인 하였다. 본 연구에서는 2003년 규제 이후 TBT의 오염도를 확인 하기 위하여 Crassostrea gigas(굴) 및 Tapes philippinarum(바지락)을 선택 하여 부틸주석화합물(butyltin compounds)의 농도를 측정하였다. Crassostrea gigas 및 Tapes philippinarum 가 생산되는 농장 및 주요 TBT 오염이 예상되는 지점에서 시료를 직접 채취하여 농도를 측정하였다. 각각 측정된 농도는 Crassostrea gigas의 경우 MBT, DBT와 TBT가 각각 N.D. -N.D., N.D. -N.D., N.D. -60.21 ng Sn $g^{-1}$ (wet wt)으로 측정 되었다. Tapes philippinarum의 경우 MBT, DBT와 TBT가 N.D. -12.27, N.D. -45.95, N.D.-7.30 ng Sn $g^{-1}$ (wet wt)로 각각 측정이 되었다. 본 연구에서는 TBT 오염도 감소를 확인 하기 위하여 1994년도에 측정된 동일 지역의 Crassostrea gigas의 부틸주석 화합물의 농도 대하여 비교조사를 해보았다. 조사결과 비교대상 7개 지점 샘플 중에 모든 샘플에서 TBT가 감소 추세를 보이는 것으로 나타났다. 이 중 4개 지점 샘플은 butyltin compounds가 검출한계 이하로 측정이 되었다. Tapes philippinarum의 경우도 외국 연구자료와 비교하여 볼 때 높지 않은 것으로 나타났다.

Keywords

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