期刊
MARINE POLLUTION BULLETIN
卷 42, 期 5, 页码 409-414出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0025-326X(00)00171-5
关键词
Irgarol 1051; organotins; Bermuda; antifouling substances; coastal zone; environmental impact
A study of the distribution of the 'booster' biocide 2-methylthio-4-tert-butylamino-6-cyclopropyl amino-s-triazine (Irgarol 1051) was carried out in the coastal waters of Bermuda. Irgarol 1051 concentrations (as determined by GC/MS) up to 590 ng l(-1) have been measured within Hamilton Harbour. The data presented herein unequivocally demonstrate contamination of the coastal system of Bermuda by Irgarol 1051. Concurrently, TBT concentrations were measured and results indicate that levels are falling through legislated changes in antifouling treatments, from 220 ng l(-1) in 1990 to < 20 ng l(-1) (as Sn) by 1995, in the open water area of Hamilton Harbour, Concentrations of TBT immediately offshore from a boatyard were found to be > 600 ng l(-1) (Sn), indicating continuing release due to painting operations and sediments in the area. (C) 2001 Elsevier Science Ltd. All rights reserved.
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