The Centre for Environment, Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk NR33 0HT, UK.
Mar Pollut Bull. 2012 Nov;64(11):2576-80. doi: 10.1016/j.marpolbul.2012.07.014. Epub 2012 Jul 31.
Liver butyltin concentrations (monobutyl, dibutyl and tributyltin (TBT)) in harbour porpoises (n=410) have been determined during 1992-2005, and again in 2009 following a ban on the use of tributyltin-based antifouling paints on ships. The aim was to assess the effectiveness of the regulation, which was implemented during 2003-2008. Since the ban was put in place summed butyltin concentrations have declined. Also, the percentage of animals in which TBT was detected has fallen sharply, indicating the cessation of fresh inputs. In 1992, 1993 and 1995, TBT was detected in 100% of samples analysed. In 2003-2005, once the implementation of the ban had begun, this fell to 61-72%, and in 2009, following the completion of the ban, had reduced to 4.3% (i.e. in only 1 of 23 samples analysed). Thus we conclude that the ban has proved effective in reducing TBT inputs to the seas from vessels.
1992-2005 年期间，对 410 只港湾鼠海豚的肝脏丁基锡浓度（单丁基、二丁基和三丁基锡（TBT））进行了测定，2009 年在禁止在船舶上使用基于三丁基锡的防污漆后再次进行了测定。目的是评估 2003-2008 年期间实施的规定的有效性。自禁令实施以来，总丁基锡浓度已经下降。此外，检测到 TBT 的动物比例急剧下降，表明已经停止了新的丁基锡输入。1992 年、1993 年和 1995 年，在分析的所有样本中均检测到 TBT。2003-2005 年，即禁令开始实施后，这一比例降至 61-72%，2009 年，在禁令完成后，降至 4.3%（即仅在分析的 23 个样本中的 1 个中检测到）。因此，我们得出结论，该禁令已被证明可有效减少船只向海洋排放 TBT。
