우리나라 연안의 해수 중 유기주석화합물 오염에 관한 연구

Organotins Contents in Sea water from the Coastal Area of Korea

Organotin compounds are one of the most widely used antifouling agent to prevent adherence of sedentary organisms to ship hull and other structural surfaces immersed in seawater. Major source of organotin compounds released to marine environment is via uses as antifouling paints for ships and cultivating nets. Organotin, in particular tributyltin(TBT) and triphenyltin( TPT) are considered to be dangerous chemicals because of their deleterious effects on non-target marine organisms. Since their adverse effects on oyster farmings near marina were revealed, a series of studies have demonstrated that organotin compounds are highly toxic towards marine organisms. In this study, the concentrations of six organotin compounds, such as TBT, TPT and their motabolites, in seawater collected at the coast were determined. Seawater were collected at several sites on the coastal area of Korea. The dibutyltin(DBT) and tributyltin compounds were detected in almost seawater samples analyzed. DBT was higher than other organotin species in the mean concentration of 14.35 ( ng/L) in seawater. The contamination levels of butyltin compounds in coastal seawater were highly detected around harbour of South and East coast than West coast. The results indicated substantial contamination along the coast of Korea in which the butyltin levels were comparable to those reported from other oversea coastal areas.