Division for Marine and Environmental Research, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
Division for Marine and Environmental Research, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
Mar Pollut Bull. 2022 Dec;185(Pt A):114270. doi: 10.1016/j.marpolbul.2022.114270. Epub 2022 Nov 5.
This study presents the first assessment of butyltins (BuTs) pollution of the Montenegrin coast. The distribution of tributyltin (TBT), dibutyltin (DBT) and monobutyltin (MBT) was investigated in mussels, sediments and water overlying sediment after the sediment resuspension. The results showed that the investigated sites (marinas, ports, shipyards) are contaminated with BuTs (19-402 ng (Sn)/g in mussels; 43-20,641 ng (Sn)/g in sediments; 9-566 ng (Sn)/L in overlying waters). The measured TBT concentrations indicate that toxic effects on marine organisms are expected at most locations. The simultaneous analysis of BuTs and total Sn in sediment cores allowed the assessment of TBT historical input, while it was demonstrated that resuspension of contaminated sediments leads to the release of all BuTs into the water column. This study shows that, despite the ban of TBT-based antifouling paints more than a decade ago, pollution of the marine environment with TBT is still a problem and regular monitoring remains essential.
本研究首次评估了波黑沿海的丁基锡（BuTs）污染情况。在沉积物再悬浮后，研究了贻贝类、沉积物和沉积物上层水中的三丁基锡（TBT）、二丁基锡（DBT）和一丁基锡（MBT）的分布情况。结果表明，所调查的地点（码头、港口、造船厂）受到 BuTs 的污染（贻贝类中为 19-402ng（Sn）/g；沉积物中为 43-20,641ng（Sn）/g；上层水中为 9-566ng（Sn）/L）。测量的 TBT 浓度表明，在大多数地点，海洋生物预计会受到毒性影响。在沉积物岩芯中同时分析 BuTs 和总 Sn，可评估 TBT 的历史输入情况，同时表明受污染沉积物的再悬浮会导致所有 BuTs 释放到水柱中。本研究表明，尽管十多年前已禁止使用 TBT 基防污涂料，但海洋环境中 TBT 的污染仍然是一个问题，定期监测仍然至关重要。
