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Tolerance of Hydrobionts to CeO2 Nanoparticles

机译：氢化物的耐受性对CeO2纳米颗粒

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Biological effects and ecotoxicity of nanoparticles (NPs) CeO2 with particle size Δ_(50) =16nm and hydrobionts tolerance was measured in simulation based on test-reactions of a group of organisms representing major trophic levels of aquatic ecosystem. Biological activity of NPs CeO2 was noted against bacterial biosensor Ekolum, Chlorella v. B., Paramecium c, Daphnia m. S. and Danio r. Toxicity and hazard level of NPs CeO2 were measured using biotesting and hydrobionts. Toxicity of NPs CeO2 against luminescent bacteria Ekolum and Paramecium c. and Danio r. was not established (L(E)C_(50) > 100 mg/l). In accordance with SGS and EC 93/67/EEC, NPs CeO2 is considered highly toxic (acute toxicity Level 1). Biomarkers and NPs CeO2 tolerant hydrobionts were determined. Range of tolerance of hydrobionts to NPs was established. The upper limit of tolerance was determined for certain hydrobionts by values of L(E)C_(50): 0.009 mg/l (by volume of Chl a) for Chlorella v. B. and 46.15 mg/l (by mobility) for Daphnia m. S.
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