DISSOLVED BUTYLTINS IN MARINE WATERS OF THE NETHERLANDS 3 YEARS AFTERTHE BAN

Authors
Citation
R. Ritsema, DISSOLVED BUTYLTINS IN MARINE WATERS OF THE NETHERLANDS 3 YEARS AFTERTHE BAN, Applied organometallic chemistry, 8(1), 1994, pp. 5-10
Citations number
25
Categorie Soggetti
Chemistry Applied","Chemistry Inorganic & Nuclear
ISSN journal
02682605
Volume
8
Issue
1
Year of publication
1994
Pages
5 - 10
Database
ISI
SICI code
0268-2605(1994)8:1<5:DBIMWO>2.0.ZU;2-9
Abstract
In 1990 the Dutch government banned the use of tributyltin-containing antifouling paint for ships up to 25 m long. Concentrations of dissolv ed (<0.45 mum) tributyltin and its degradation products di- and mono-b utyltin were determined in six selected marinas during three consecuti ve years with a frequency of five times a year, starting in 1990. The highest butyltin concentrations were found in Scharendijke located in the salt-water lake Grevelingen: up to 2500 ng dm-3. In tidal-water ma rinas butyltin concentrations were in the order of 50-300 ng dm-3, dep ending on the boating and dredging activity. In some marinas higher bu tyltin concentrations were found during the summer period, probably in dicating the illegal use of tributyltin-containing antifouling paints. No clear trend of decrease in dissolved tributyltin concentrations in the different marinas has been found. Due to the equilibrium between the butyltins dissolved in the water and the butyltins adsorbed onto t he sediment, water concentrations will remain more or less constant.