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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Ecotoxicological evaluation of selected plastics
 Demová, Kristína ; Mravcová, Ludmila (referee) ; Zlámalová Gargošová, Helena (advisor)
The presented bachelor thesis deals with the issue of plastics in the environment and their ecotoxicological evaluation. This topic is currently being brought to the fore due to the development of new, more easily degradable plastics. This is intended to be a solution to the current environmental problem. That is why the aim of this work was to verify the assumption of ecological safety of such plastics. The experimental part focuses on one selected biodegradable plastic - polyhydroxybutyrate, which was evaluated using acute and chronic toxicity tests. The tests were performed in an aquatic arrangement to predict the effect on the aquatic ecosystem. Two organisms were chosen from its representatives, the crustacean Daphnia magna and the plant Lemna minor. The chronic test on the organism Daphnia magna shows the greatest results, which indicates the negative effects of the selected plastic on the tested organism.
Detailed record
Ecotoxicological evaluation of selected plastics
 Demová, Kristína ; Mravcová, Ludmila (referee) ; Zlámalová Gargošová, Helena (advisor)
The presented bachelor thesis deals with the issue of plastics in the environment and their ecotoxicological evaluation. This topic is currently being brought to the fore due to the development of new, more easily degradable plastics. This is intended to be a solution to the current environmental problem. That is why the aim of this work was to verify the assumption of ecological safety of such plastics. The experimental part focuses on one selected biodegradable plastic - polyhydroxybutyrate, which was evaluated using acute and chronic toxicity tests. The tests were performed in an aquatic arrangement to predict the effect on the aquatic ecosystem. Two organisms were chosen from its representatives, the crustacean Daphnia magna and the plant Lemna minor. The chronic test on the organism Daphnia magna shows the greatest results, which indicates the negative effects of the selected plastic on the tested organism.
Detailed record

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