As early as 1975, significant and repeated disturbances were observed to occur in the Crassostrea gigas oyster farms of the Arcachon Bay along the French Atlantic Coastline.
TBT contamination of the local breeding waters was found to be responsible for failure to reproduce and for anomalies occurring in the shell calcification of adult oysters leading to stunted growth.
On 17 January 1982, the French Ministry of the Environment issued a 3 month ban on the sale of marine anti-fouling paints with an organotin compound content exceeding 3%. The Ministerial ban was subsequently renewed and reinforced and ultimately converted into an enforcement decree transcribing an European Union directive into French law, in October 1992.
The ban was the first official action in response to a growing awareness to the TBT-related pollution of some coastal areas and to its unacceptable impact on shellfish farming.
These measures were adopted as soon as the first scientific evidence of a causal relationship was established between tributyltin and oyster shell anomalies.
Since then numerous research studies have been conducted on the geochemical behavior of tributyltin, its ecotoxicity and on TBT-related risks presented by antifouling paints. (...)
Mots-clés Pascal : Polluant, Métal lourd, Propriété physicochimique, Persistance, Toxicité, Accumulation biologique, Mollusque comestible, Risque, Gironde, Aquitaine, France, Europe, Océan Atlantique Nord, Océan Atlantique, Pollution eau, Milieu marin, Ostréiculture, Etain Composé organique, Crassostrea gigas, Bivalvia, Mollusca, Invertebrata, Stannane(tributyl)
Mots-clés Pascal anglais : Pollutant, Heavy metal, Physicochemical properties, Persistence, Toxicity, Biological accumulation, Edible mollusc, Risk, Gironde, Aquitaine, France, Europe, North Atlantic, Atlantic Ocean, Water pollution, Marine environment, Oyster farming, Tin Organic compounds, Crassostrea gigas, Bivalvia, Mollusca, Invertebrata
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0061863
Code Inist : 002A14D05G. Création : 31/05/1999.