船底防汚塗料の海洋環境リスク評価手法の国際標準化
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概要
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Since the AFS Convention, adopted at IMO in the year of 2001, globally prohibited the use of organotin compounds in ship's anti-fouling paints, tin-free active substances have been used in the paints. However, there are no assessment methods available as a global standard for the effects on marine eco-systems of these anti-fouling paints. Activities thus have been carried out for estab-lishing an international standard of marine environmental risk assessment method on anti-fouling systems on ships. The risk assessment method consists of two parts; Part 1 on active substances and Part 2 for anti-fouling paints. Both are based on exposure- and hazard-assessments, and the risk is eventually evaluated by calculating the ratio of PEC (predicted environment concentration) derived from exposure assessment and PNEC (predicted no effect concentration) by hazard as-sessment. These methods could provide guidelines examining the proposal submitted to IMO for adding a compound to the prohibited substance list, Annex 1 to the Convention. They are also available for a marine environmental risk assessment when establishing an industry's self-approval system of anti-fouling paints.
- 2011-10-31