Aquatic toxicity of hydroquinone and catechol following metal oxide treatment to Ceriodaphnia dubia and Pimephales promelas
© 2023. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.
| Veröffentlicht in: | Ecotoxicology (London, England). - 1992. - 32(2023), 5 vom: 15. Juli, Seite 656-665 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2023
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| Zugriff auf das übergeordnete Werk: | Ecotoxicology (London, England) |
| Schlagworte: | Journal Article Aquatic toxicity Freshwater organisms LC50 Metal oxides Phenolic compounds titanium dioxide 15FIX9V2JP hydroquinone XV74C1N1AE mehr... |
| Zusammenfassung: | © 2023. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply. Metal oxides comprise a large group of chemicals used in water treatment to adsorb organic pollutants. The ability of titanium dioxide (TiO2) and iron (III) oxide (Fe2O3) to reduce the chronic toxicity of (phenolic) C6H6(OH)2 isomers, namely hydroquinone (HQ) and catechol (CAT) to Ceriodaphnia dubia and Pimephales promelas (less than 24 h-old) were investigated. The toxic endpoints following metal oxide treatment were compared to endpoints of untreated CAT and HQ. In chronic toxicity testing, HQ resulted in greater toxicity than CAT for both test organisms; the median lethal concentrations (LC50) for CAT were 3.66 to 12.36 mg.L-1 for C. dubia and P. promelas, respectively, while LC50 for HQ were 0.07 to 0.05 mg.L-1, respectively. Although both treated solutions presented lower toxic endpoints than those in the untreated solutions, Fe2O3 had a better potential to reduce the toxic effects of CAT and HQ than TiO2 |
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| Beschreibung: | Date Completed 30.06.2023 Date Revised 30.06.2023 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1573-3017 |
| DOI: | 10.1007/s10646-023-02672-5 |