Department of Human Sciences, Kobe College, Okadayama 4-1, Nishinomiya, Hyogo, 662-8505, Japan.
Institute of Symbiotic Science and Technology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan.
Arch Environ Contam Toxicol. 2023 Nov;85(4):333-348. doi: 10.1007/s00244-023-01036-8. Epub 2023 Nov 1.
A monitoring survey of antifouling biocides was conducted in the Harima Nada Sea and Osaka Bay of the Seto Inland Sea, Japan to assess contamination by organotin (OT) compounds and alternative biocides. The concentrations of tributyltin (TBT) compounds in surface water ranged from 1.0 to 2.8 ng/L, and the detected TBT concentrations in the bottom water layer were higher than those in the surface water. The concentrations of TBT compounds in sediment samples ranged from 2.0 to 28 ng/g dry weight (dw), respectively. The concentrations of alternative biocides in the water and sediment were lower than those before the banning of TBT by the International Maritime Organization (IMO). Although triphenyltin (TPT) compounds were not detected in water samples, TPT compounds were detected in the range of < 0.1-2700 ng/g dw in sediment samples. Their concentrations in the water samples were as follows: diuron, < 1-53 ng/L; Sea-Nine 211, < 1-1.8 ng/L; Irgarol 1051, < 1-4.0 ng/L; dichlofluanid, < 1-343 ng/L; and chlorothalonil, < 1-1 ng/L, and the ranges of these alternative compounds in sediment samples were diuron, 32-488 ng/g dw; Sea-Nine 211, 47-591 ng/g dw; Irgarol, 33-128 ng/g dw; dichlofluanid, 67-8038 ng/g dw; and chlorothalonil, 31-2975 ng/g dw. Thus, the OTs and alternative biocides have still been detected in water and sediment samples from closed sea areas.
在日本濑户内海的播磨滩和大阪湾进行了防污生物杀灭剂的监测调查，以评估有机锡（OT）化合物和替代生物杀灭剂的污染情况。表层水中三丁基锡（TBT）化合物的浓度范围为 1.0-2.8ng/L，底层水中检测到的 TBT 浓度高于表层水。沉积物样品中 TBT 化合物的浓度范围分别为 2.0-28ng/g 干重（dw）。水中和沉积物中的替代生物杀灭剂浓度低于国际海事组织（IMO）禁止 TBT 之前的水平。虽然在水样中未检测到三苯基锡（TPT）化合物，但在沉积物样品中检测到 TPT 化合物的浓度范围为<0.1-2700ng/g dw。它们在水样中的浓度如下：敌草隆，<1-53ng/L；十二烯基丁二酸二钠盐，<1-1.8ng/L；唑草酮，<1-4.0ng/L；双氰胺，<1-343ng/L；百菌清，<1-1ng/L，替代化合物在沉积物样品中的浓度范围为敌草隆，32-488ng/g dw；十二烯基丁二酸二钠盐，47-591ng/g dw；唑草酮，33-128ng/g dw；双氰胺，67-8038ng/g dw；百菌清，31-2975ng/g dw。因此，在封闭海域的水和沉积物样本中仍检测到 OTs 和替代生物杀灭剂。
