1. Threat of plastic ageing in marine environment. Adsorption/desorption of micropollutants.
- Author
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Kedzierski M, D'Almeida M, Magueresse A, Le Grand A, Duval H, César G, Sire O, Bruzaud S, and Le Tilly V
- Subjects
- Adsorption, Animals, Cell Survival drug effects, Endocrine Disruptors toxicity, Estrogen Receptor alpha genetics, Estrogen Receptor alpha metabolism, Fishes, France, Human Umbilical Vein Endothelial Cells, Humans, Plastics toxicity, Saccharomyces cerevisiae drug effects, Saccharomyces cerevisiae genetics, Surface Properties, Time Factors, Water Pollutants, Chemical toxicity, Endocrine Disruptors analysis, Plastics analysis, Seawater chemistry, Water Pollutants, Chemical analysis
- Abstract
Ageing of various plastics in marine environment was monitored after immersion of two synthetic (polyvinylchloride, PVC, and polyethylene terephthalate, PET) and one biodegradable (poly(butylene adipate co-terephtalate), PBAT) plastics for 502days in the bay of Lorient (Brittany, France). Data analysis indicates that aged PVC rapidly releases estrogenic compounds in seawater with a later adsorption of heavy metals; PET undergoes a low weakening of the surface whereas no estrogenic activity is detected; PBAT ages faster in marine environment than PVC. Aged PBAT exhibits heterogeneous surface with some cavities likely containing clay minerals from the chlorite group. Besides, this degraded material occasionally shows a high estrogenic activity. Overall, this study reports, for the first time, that some aged plastics, without being cytotoxic, can release estrogenic compounds in marine environment., (Copyright © 2017. Published by Elsevier Ltd.)
- Published
- 2018
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