Toxicity of Water after Short-Term Contact with PVC Materials Depending on the Temperature and Components of the Polymer Composition

• Autorzy: Olkova, Anna
• Języki publikacji: EN

Abstrakty

EN

This work shows a paradoxical fact: a highly plasticized PVC sample containing the maximum amount of the plasticizer di(2-ethylhexyl) phthalate (DEHP) compared to medium- and low-plasticized polymers turned out to be the least toxic. This was confirmed in express bioassays for the pre-lethal reactions of Paramecium caudatum Ehrenber and Escherichia coli M-17 when determining the acute toxicity for mortality of Daphnia magna Straus and Ceriodaphnia affinis Lilljeborg, as well as in chronic tests for D. magna. The migration of DEHP from the tested PVC samples into water was confirmed by the mass spectrometry method. It was shown that the contact of PVC materials with hot water (70℃) led to a significant increase in the toxicity of the extracts compared to cold extraction (20℃). The search for safe composition of PVC materials must be carried out in the direction of the optimal ratio of PVC-polymer, plasticizer and heat stabilizer, as well as replacing the components of the composition with safe substances.

Słowa kluczowe

EN

polyvinyl chloride; bioassay; acute toxicity; chronic toxicity; toxicant migration; di(2-ethylhexyl) phthalate

• Czasopismo: Ecological Engineering & Environmental Technology
• Rocznik: 2021
• Tom: Vol. 22, iss. 5
• Strony: 119--125
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Olkova, Anna

• Vyatka State University, Moskovskaya Str. 36, Kirov, 610000, Kirov Region, Russia,

Bibliografia

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Identyfikatory

DOI

10.12912/27197050/139345