• 제목/요약/키워드: butyltin

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넙치(Paralichthys olivaceus)의 기관계 구조에 미치는 bis(tri-n-butyltin)oxide (TBTO) 독성 (Toxicity of Bis(tri-n-butyltin)oxide (TBTO) on the Organ Structure of the Flounder, Paralichthys olivaceus)

  • 이정식;강주찬;신윤경;진영국;박정준
    • 환경생물
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    • 제22권1호
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    • pp.133-140
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    • 2004
  • 유기주석화합물이 넙치의 기관계 구조에 미치는 독성을 알아보기 위하여 넙치를 대조구와 TBTO를 첨가한 6개 농도구(0.17, 0.36, 0.60, 3.20, 6.30, 12.50 ${\mu}g \;L^{-1}$)에서 42일 동안 노출 실험을 하였다. 조직상의 변화 정도는 노출 시간과 TBTO농도의 증가에 따라 심하게 나타났다. 저농도의 TBTO 노출구에서 관찰된 초기 조직학적 변화로는 아가미에서는 점액세포와 염세포의 활성, 새판 모세혈관의 충혈, 상피층의 비후, 간췌장에서는 간세포의 활성화와 췌장 효소원과립의 감소, 담관의 변성이 확인되었으며, 신장에서는 모세혈관의 충혈, 호산성세포와 혹색 대식세포군의 출현이 관찰되었다. 고농도의 TBTO 노출구에서 관찰된 조직학적 변화로는 아가미에서는 새판 상피층의 박리와 새판의 붕괴, 간췌장에서는 간세포의 핵응축, 세포질의 혼탁 및 과립변성, 신장에서는 조혈세포의 핵응축, 사구체와 세뇨관의 붕괴 등 정상적인 기능 수행이 어려울 것으로 판단되는 조직상들이 관찰되었다. 이와 같은 결과는 TBTO는 다른 수중오염원과 마찬가지로 어류 기관계의 조직병리학적 변화를 유도한다는 것을 나타낸다.

Tributyltin and Triphenyltin Residues in Pacific Oyster(Crassostrea gigas) and Rock Shell (Thais clavigera) from the Chinhae Bay System, Korea

  • Shin, Won-Joon;Oh, Jae-Ryoung;Kahng, Sung-Hyun;Shim, Jae-Hyung;Lee, Soo-Hyung
    • Journal of the korean society of oceanography
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    • 제33권3호
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    • pp.90-99
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    • 1998
  • Butyltin and phenyltin residues were quantified in seawater and biota of the Chinhae Bay System, Korea in 1995. Butyltin compounds were detected in all seawater and biota samples, whereas phenyltin compounds were found only in the biota samples. Tributyltin (TBT) concentrations in seawater ranged from < 8-35 ng Sn/l. Tributyltin concentrations in Crassostyea gigas and Thais clavigera ranged from 95-885 and 23-414 ng Sn/g, respectively, Triphenyltin(TPhT) concentrations in each species ranged 155-678 and 46-785 ng Sn/g, respectively. Spatial distribution of TBT was closely related to boating and dry-docking activities. However, spatial distribution of TPhT was not consistent with that of TBT. The biological concentration factor for TBT in C. gigas was about 25000 that is four times greater than that of T. clavigera. Butyl- to phenyltin concentration ratio was greater than one in C. gigas, but that in T. clavigera was less than one. Major tissues of C. gigas also showed different accumulation patterns for butyl- and phenyltin compounds. Furthermore, 19 and 28% of total body burdens of TBT and TPhT were found in gonadal mass of C. gigas just prior to spawning.

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Contamination and Bioaccumulation of Butyltin Compounds Inside Jeju Harbor of Jeju Island, Korea

  • Kam, Sang-Kyu;Cho, Eun-Il;Lee, Min-Gyu
    • 한국환경과학회지
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    • 제20권2호
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    • pp.163-174
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    • 2011
  • Butyltin compounds in seawater, sediments and organisms inside Jeju Harbor of Jeju Island, Korea, were quantitatively determined to assess the extent of contamination and to evaluate the bioaccumulation in Thais clavigera (gastropod), Liolophura japonica and Cellana nigrolineata. In addition, imposex in T. clavigera was used to assess the sublethal effect of tributyltin compounds and its usage as a specific biomarker for these compounds was also studied. The main species in seawater was tributyltin (TBT) in March and June, monobutyltin (MBT) in August, but in sediments and organisms it was dibutyltin (DBT) and TBT, respectively, irrespective of survey time. TBT, the most toxic to aquatic organisms among BTs, was found at concentrations which were sufficient to have a serous effect on the sensitive organisms upon chronic exposure. The high correlations (r>0.7) between BTs indicated that DBT and MBT were mainly degraded from TBT based on antifouling paints and their sources were negligible. The sedimentary organic matters have little influence on the distribution of BTs in marine environment and the lipid content in T. clavigera showed a significant correlation with TBT concentrations. Measurement of imposex T. clavigera was expected to be a very helpful tool for preliminary survey of BTs prior to trace analysis of those.

울산만 퇴적물 내 유기주석화합물의 시공간적 분포 특성 (Temporal and Spatial Distribution of Butyltin Compounds in Marine Sediments from Ulsan Bay, Korea)

  • 백승홍;최민규;이인석;이재환;황동운;김숙양
    • 한국해양학회지:바다
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    • 제19권1호
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    • pp.1-7
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    • 2014
  • Tribuyltin (TBT)을 포함한 유기주석 방오도료의 국내 사용규제에 따른 저감효과를 평가하기 위해서, 국내에서 가장 큰 산업항 중 하나인 울산항 주변에서 2009년과 2011년에 채취한 퇴적물 내 유기주석화합물(butyltin compounds; BTs)을 정량하여 잔류수준과 공간적 분포를 조사하였다. 또한 2003년 조사결과와 비교하여 퇴적물 내 유기주석화합물 잔류의 장기경향을 조사하였다. 퇴적물 내 TBT의 농도범위는 14.2~1204 ng Sn $g^{-1}$ dry wt이었고, dibutyltin은 19.5~980 ng Sn $g^{-1}$ dry wt을 보였다. BTs의 가장 높은 농도는 대형조선소 부근에서 조사되었고, 다음으로 높은 농도는 울산항 컨테이너선 정박지 부근에서 조사되었다. 이것은 울산만에서 TBT의 가장 중요한 배출원은 선박활동을 포함한 해운산업과 관련 있음을 의미한다. 2003년, 2009년, 2011년의 BTs 농도를 비교한 결과, 퇴적물 내 TBT 농도는 유의한 수준으로 감소하고 있어서 국내 사용규제에 따른 저감 효과가 울산만에서도 나타나고 있었다. 해수와 생물내 농도감소는 보고된 적이 있지만, 규제 이후 퇴적물에서 유기주석화합물의 농도감소는 이번 연구에서 처음 보고되는 결과이다. 하지만, 퇴적물 내 BTs의 잔류수준은 생물학적 영향농도보다 높은 수준이었다. 따라서 울산만에서 유기주석화합물로 인한 오염에 대한 저감노력과 지속적인 모니터링이 필요하다.

Bis(tri-n-butyltin)oxide (TBTO)에 대한 넙치 (Paralichthys olivaceus)의 조직학적 반응

  • 이정식;마경화;강주찬;신윤경;진평
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2001년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.532-533
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    • 2001
  • 여러 가지 화학물질이나 중금속 등에 의한 생물학적 피해가 오랜 기간에 걸쳐 연구 되어 왔는데, 최근 들어 화학물질 가운데 TBTs, PCBs, DBTs 등이 내분비계 장애물질로 분류되어 여러 가지 환경적인 규제의 대상이 되었다. 이 가운데 TBTs는 살충제로서 개발되어 선박 등의 방오도료에 이용되고 있으며, 이들 물질에 장기간 노출된 수 서생물은 생식 및 생리대사에 영향을 받게된다 (Piver, 1973). (중략)

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제주도 성산항내 부틸주석화합물의 분포와 생물체에 미치는 영향 (Distribution and Effect on Organisms of Butyltin Compounds Inside Songsan Harbor of Cheju Island)

  • 김상규;안이선;고병철;조은일;이기호
    • 한국환경과학회지
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    • 제9권4호
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    • pp.285-294
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    • 2000
  • Butyltin compounds (BTs) in seawater, sediments and organisms (Thais clavigera, Liolophura japonica and Cellana nigrolineata), were quantitatively determined to evaluate their distribution inside Songsan Harbor of Cheju Island. In addition, imposex in T. clavigera was used to assess the effect on organisms of BTs. Analysis of the samples collected in seawater, sediments (March, June and August) and organisms (May, July and August) in 1998, confirmed the contamination of BTs in the aquatic environment inside Songsan Harbor. The main BTs species in seawater and sediments was monobutyltin (MBT), tributyltin (TBT), respectively, irrespective of survey time. In oranisms, TBT and dibutyltin (DBT) were detected in similar concentrations for T. clavigera and L. japonica, but for C nigrolineata, DBt concentration was the highest. TBT, the most toxic to aquatic organisms among BTs, was found at concentrations which were sufficient to have a serious effect on the sensitive organisms upon chronic exposure, The relatively high correlations (r>0.83) between BTs indicated that DBT and MBT were mainly degraded from TBT based on antifouling paint and their sources were negligible. The sedimentary organic matters did not have influence on the distribution of BTs in marine environment, and lipid content in T. clavigera did not show a correlation with TBT concentrations. The rate of occurrence of imposex in T. clavigera was 100%, and the relative penis length index (RPLI) and the relative penis size index (RPSI) which represent the degree of imposex were 79.7%, 58.1%, respectively. Measurement of imposex in T. clavigera was expected to be a very helpful tool for preliminary survey of BTs prior to trace analysis of BTs.

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