The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China.
State Key Laboratory of Marine Environmental Science, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
Mar Pollut Bull. 2020 May;154:111093. doi: 10.1016/j.marpolbul.2020.111093. Epub 2020 Apr 10.
Triphenyltin (TPT) has been known as one of the most toxic compounds being released into the marine environment by anthropogenic means. This study assessed the contamination statuses of TPT and its two major degradants, i.e., monophenyltin and diphenyltin, in seawater, sediment and biota samples from marine environments of Hong Kong, a highly urbanized and densely populated city, and evaluated their ecological and human health risks. The results showed that the Hong Kong's marine environments were heavily contaminated with these chemicals, especially for TPT. Concentration ranges of TPT in seawater, sediment and biota samples were 3.8-11.7 ng/L, 71.8-91.7 ng/g d.w., and 9.6-1079.9 ng/g w.w., respectively. As reflected by high hazard quotients (1.7-5.3 for seawaters; 46.1-59.0 for sediments), TPT exhibited high ecological and human health risks. Our results are essential for the future management and control of anthropogenic TPT use in antifouling paints and as biocides in agriculture.
三苯基锡（TPT）已被公认为是通过人为方式释放到海洋环境中毒性最大的化合物之一。本研究评估了 TPT 及其两种主要降解产物，即一苯基锡和二苯基锡，在香港海洋环境中的海水、沉积物和生物群样本中的污染状况，并评估了它们的生态和人类健康风险。结果表明，香港的海洋环境受到这些化学物质的严重污染，尤其是 TPT。海水、沉积物和生物群样本中 TPT 的浓度范围分别为 3.8-11.7ng/L、71.8-91.7ng/g dw 和 9.6-1079.9ng/g w.w.。高危害系数（海水为 1.7-5.3；沉积物为 46.1-59.0）表明 TPT 具有高生态和人类健康风险。我们的研究结果对于未来管理和控制防污涂料中人为 TPT 的使用以及农业中生物杀灭剂的使用具有重要意义。
