Long-term monitoring of tributyltin in San Diego Bay California
Long-term monitoring of tributyltin in San Diego Bay California
复制标题
加利福尼亚州圣地亚哥湾三丁基锡的长期监测
DOI：
10.1016/0141-1136(91)90039-b
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发表时间：
1991
影响因子：
3.3
通讯作者：
P. Seligman
中科院分区：
文献类型：
--
作者：
A. Valkirs;B. Davidson;L. L. Kear;R. Fransham;J. Grovhoug;P. Seligman
在加州立法限制使用含有三丁基锡的防污漆之后，圣地亚哥湾地表水中的三丁基锡浓度已大幅下降。在圣地亚哥湾研究的四个地区中，有三个地区的地表水浓度低于加州州为保护海洋物种而采用的6 ng liter− 1水质标准浓度。对两年多来地表水三丁基锡化合物测量结果的回归分析表明，目前的浓度将在8个月至大约2年内下降50%，具体取决于所研究的区域。从海湾贻贝（Mytilus edulis）采集的组织样本表明，在组织中测得的三丁基锡化合物一般随着水浓度的降低而降低。在组织样本中测得的大部分三丁基锡化合物浓度低于据报告对贻贝生长产生不利影响的水平。圣地亚哥湾沉积物中的三丁基锡化合物浓度通常并不反映最近水柱值的下降，并且随着时间的推移，各站点之间存在差异。
Tributyltin (TBT) surface water concentrations have significantly decreased in San Diego Bay following legislative restrictions on use of anti-fouling paints containing TBT in California. Current surface water concentrations in three of four regions studied in San Diego Bay are below the 6 ng liter−1water quality criteria concentration adopted by the State of California for the protection of marine species. Regression analysis of surface water TBT measurements made over a 2 year period indicated that present concentrations would decrease by 50% in 8 months to approximately 2 years depending on the region studied. Tissue samples from the bay mussel,Mytilus edulisindicated that TBT measured in tissues generally decreased as water concentrations decreased. The majority of TBT concentrations measured in tissue samples were below levels reported to adversely affect mussel growth. Sediment TBT concentrations in San Diego Bay generally did not reflect recent decreases in water column values and were variable among stations over time.