Consulta: subjectFacets:"Étain"
Registros recuperados: 3
Data/hora: 02/06/2024 18:26:48

Mise au point d'un test microcrustacé marin
Provedor de dados: 5
Autores: Marcaillou-le Baut, Claire; Le Dean, Loic; Chiffoleau, Jean-francois; Sanjuan, Jane.
Because of the low number of currently available toxicity tests for marine environment, the authors describe an experimental procedure using a marine copepod : Tigriopus brevicornis. This method can be used to quantify the 50 % inhibition of larval production or growth. The variability in controls larval production reaches about 9 %. The toxicity of two contaminants : tributyltin (TBTF) and cadmium chloride (CdCl2) was determined with this method and the 50 % decreases in larval production are respectively 1,4 µg/l (TBTF) and 61 µg/l (Cd++).
Tipo: Text
Palavras-chave: Test; Toxicité; Copépode; Étain; Cadmium; Test; Toxicity; Copepod; Tin; Cadmium.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00139/25036/23145.pdf

L'étain et les organoétains en milieu marin. Biogéochimie et écotoxicologie.
Provedor de dados: 5
Autores: Alzieu, Claude.
This report synthesizes the knowledge on the biogeochemical cycle, bioconcentration processes and ecotoxicity of tin and organotins in the marine environment. Concentrations levels, biomethylation mechanisms and exchanges between sediments and water are assessed. Emphasis is given on tributyltin sublethal effects, toxicity mechanisms and no effect levels for the most sensitive organisms. Regulations on the use of organotins as antifoulants in paints are examined. Conclusions and recommendations for environmental management and research are given.
Tipo: Text
Palavras-chave: Étain; Biogéochimie; Contamination; Écotoxicologie.; Tin; Biogeochemistry; Contamination; Ecotoxicology.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00332/44314/43883.pdf

Importance de la spéciation des métaux et composés organométalliques pour une bonne évaluation des risques environnementaux en milieu marin. Cas du mercure, de I'arsenic et de l'étain
Provedor de dados: 5
Autores: Michel, Pierre.
Methylmercury toxicity for sea-food consumers is well known long time ago. Tributyltin used as antifouling in paints is toxic at a level as low as 1 ng/l for oysters gastropod. At the opposite, organoarsenic compounds and especially arsenobetaine from fishes are much less toxic than inorganic species. Moreover, besides toxicological considerations, the biogeochemical fates of these elements need a good knowledge of the chemical forms of environmental inputs and of their behaviour in the various compartments (waters, sediments, biota). These phenomenons will be better understood by discussing typical applications.
Tipo: Text
Palavras-chave: Composés organométalliques; Mercure; Arsenic; Étain; Biogéochimie; Organometallic compounds; Mercury; Arsenic; Tin; Biogeochemistry.
Ano: 1992
URL: https://archimer.ifremer.fr/doc/00480/59138/61766.pdf