algerian journal of environmental science and technology
Volume 3, Numéro 3, Pages 509-518
2017-12-30
Toxicité Subchronique Des Nanoparticule De Zno Chez Helix Aspersa: Etude Physiologique Et Comportementale
Auteurs : Grara N .
Résumé
In this study we were interested in assessing the impact of ZnO based metal nanoparticles and their effects on body bioaccumulative bioindicator of environmental pollution and an indicator of health status Helix aspersa for the preservation of Human health. This is a sub chronic (28 days) by means of digestive absorption. The toxicity of ZnO is determined in the snail Helix aspersa using a bioassay conducted on laboratory animals exposed to increasing concentrations of ZnO (500 μg/g, 1000 μg/g, 5000 μg/g, 10000 μg/g, 15000 μg/g).Initial results show that the presence of metallic nanoparticles to ZnO growth caused an inhibition dose-dependent in the shell diameter. The growth inhibition is also represented by a reduction dose - dependent on the weight of organs especially Soft (digestive gland and kidney), and reduced dose - dependent consumption rate and dry weight of the waste and compartmental disturbances were noted.
Mots clés
Helix aspersa, metal Nanoparticls, ZnO, indicator of health status, bioaccumulation, digestive gland, kidney, compartmental.
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