Marine Environment Research Division, National Fisheries Research and Development Institute, Busan, 619-705, Republic of Korea.
Arch Environ Contam Toxicol. 2013 Apr;64(3):448-55. doi: 10.1007/s00244-012-9839-3. Epub 2012 Dec 20.
We investigated the temporal trend in contamination of butyltin compounds (BTs) along the Korean coast using imposex and tributyltin (TBT) burden in gastropods (Thais clavigera) as a biomonitor. Thais clavigera were collected from 26 locations with different shipping activities between 2004 and 2009 after restrictions on TBT-based antifouling paints were imposed in Korea. In the present study, imposex indices and TBT tissue concentrations significantly decreased over time from 2004 to 2009, confirming the effectiveness of TBT regulation. However, imposex in 2009 samples was still found. Significantly high imposex indices and TBT tissue residues were found in large ports containing commercial and ferry services compared with small ports and background areas. Imposex indices in background areas had decreased to zero, suggesting recovery from imposex caused by BT contamination. These results suggest that recovery from TBT contamination occurs faster in areas with very low maritime activities than areas with high maritime activities.
我们使用生物监测物腹足类动物（塔希提克拉维格纳）中的性畸变和三丁基锡（TBT）负担来研究韩国沿海地区丁基锡化合物（BTs）的污染随时间的变化趋势。在韩国限制使用基于 TBT 的防污漆后，于 2004 年至 2009 年间从 26 个具有不同航运活动的地点采集了塔希提克拉维格纳。在本研究中，性畸变指数和 TBT 组织浓度随着时间的推移从 2004 年到 2009 年显著降低，证实了 TBT 法规的有效性。然而，在 2009 年的样本中仍发现了性畸变。与小港口和背景地区相比，含有商业和渡轮服务的大型港口中的性畸变指数和 TBT 组织残留量明显较高。背景地区的性畸变指数已降至零，表明由 BT 污染引起的性畸变已恢复。这些结果表明，在海事活动非常少的地区，TBT 污染的恢复速度比海事活动多的地区更快。
