Status of butyltin pollution along the coasts of western Japan in 2001, 11 years after partial restrictions on the usage of tributyltin
Status of butyltin pollution along the coasts of western Japan in 2001, 11 years after partial restrictions on the usage of tributyltin
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DOI：
10.1016/j.marpolbul.2005.06.043
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发表时间：
2005-01-01
影响因子：
5.8
通讯作者：
Takeuchi, I
中科院分区：
文献类型：
--
作者：
Murai, R;Takahashi, S;Takeuchi, I
自1990年以来，由于三丁基锡对海洋生物具有强烈的毒性作用，日本一直限制在水产养殖业和沿海地区的船只上使用三丁基锡，但远洋船只除外。然而，在这项立法颁布后，日本沿海沿着出现了TBT污染的报告。为了阐明丁基锡（BT）化合物的污染现状，我们测量了海水和Caprella spp.中的BT [单丁基锡（MBT）、二丁基锡（DBT）和TBT]水平。2001年3 ~ 9月在日本西部的濑户内海、宇和海和天之内湾的西部海域采集了样品。在90%以上的海水样本（n = 59）中检测到丁基锡，平均浓度为8.2 +/- 9.2（SID）ng MBT L-1、3.3 +/- 3.0 ng DBT L-1和9.0 +/- 7.0 ng TBT L-1。在41个站位于沿海线，足够数量的Caprella生物的化学分析，可以收集到只有16个站。从宇和海和Uranouchi湾的海水和Caprella样品中的丁基锡浓度，其中在这两个沃茨的主导产业是水产养殖，表现出显着高于或没有显着差异，从西部的濑户内海，在日本的主要重工业区的样品。随着海水中三丁基锡化合物浓度的增加，采集到的Caprella生物数量减少。海水样本中的三丁基锡化合物平均浓度高于估计的最低可观测效应浓度，该浓度会降低丹氏红螺的存活率。因此，目前的研究表明，TBT仍然是一个潜在的生态危害的海洋无脊椎动物的生存栖息在沿海沿着日本西部，即使I I年后的部分禁令TBT的使用实施。(c)2005爱思唯尔有限公司保留所有权利。
Restrictions on the use of tributyltin (TBT) in aquaculture and on boats in coastal regions, except for ocean-going vessels, have been in place in Japan since 1990 due to the strong toxic effects of TBT on marine organisms. However, TBT pollution along the Japanese coasts has been reported after this legislation was enacted. In order to elucidate the present status of contamination by butyltin (BT) compounds, we measured the levels of BTs [monobutyltin (MBT), dibutyltin (DBT) and TBT] in seawater and Caprella spp. samples obtained from the western part of Seto Inland Sea, Uwa Sea and Uranouchi Bay in western Japan during March to September, 2001. Butyltins were detected in more than 90% of the seawater samples (n = 59), with average concentrations of 8.2 +/- 9.2 (SID) ng MBT L-1, 3.3 +/- 3.0 ng DBT L-1 and 9.0 +/- 7.0 ng TBT L-1. Among 41 stations situated on coastal lines, a sufficient number of Caprella organisms for chemical analysis could be collected from only 16 stations. The butyltin concentrations in seawater and Caprella samples from Uwa Sea and Uranouchi Bay, in which the dominant industry in both waters is aquaculture, showed significantly higher than or no significant differences from those samples from the western part of Seto Inland Sea, a major heavy-industry area in Japan. As the TBT concentration in seawater increased, the number of Caprella organisms collected decreased. The mean TBT concentration among the seawater samples was above the estimated lowest observable effect concentration (LOEC) that reduces the survival rate of Caprella dandevskii. Thus, the present study indicates that TBT is still a potential ecological hazard to the survival of marine invertebrates inhabiting coasts along western Japan, even I I years after the partial ban on TBT usage was implemented. (c) 2005 Elsevier Ltd. All rights reserved.