Ecotoxicological evaluation of polymeric substances

abstract

English

Polymers or their additives may become parts of a wide range of products. After the end of life cycle useful parts of the products are recycled but significant part becomes waste. It´s therefore desirable not only by law on chemicals and chemical products, but also according to the requirements of European directive REACH, to assess not only chemicals but also precursors of all products or products themselves in terms of their impact on the environment. For these purposes it serves ecotoxicity test, which allow prediction effects of test compounds in the environment. Via ecotoxicity tests were evaluated efects of polypropylene grafted itaconic anhydride and polypropylene grafted maleic anhydride and their additives; anhydride maleic and anhydride itaconic effects on the environment. Additives were tested in aquatic arrangement via animal and plant testing organisms. Grafted polypropylene substances are poorly water soluble and, therefore, were tested in a contact arrangement, via phytotoxicity test on lettuce Lactuca sativa. The representative animal soil organism was springtails Folsomia candida and enchytraeid Enchytraeus crypticus. Based on the test results values of IC50, LC50, EC50 for the tested substances were determined, and compared to their toxicity. Additives grafted polypropylene showed slightly toxic effects on the test organisms; maleic anhydride exhibited a higher toxic effect than itaconic anhydride. Grafted polypropylene demonstrated no toxic effect, and therefore should not pose any environmental risk.

Ecotoxicity, polymers, additives

ZLÁMALOVÁ GARGOŠOVÁ, H.; MILATOVÁ, M.; KUČERA, F.

1. 9. 2015

ECH, VUT v Brně

Brno

978-80-214-5228-2

Book of Abstracts, Chemistry and Life

první

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84

84

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