Benzotriazole UV stabilizers effects in freshwater invertebrates

Benzotriazole UV stabilizers effects in freshwater invertebrates In this study, the chronic effects of 2 BZT-UVs, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (UV-234) and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV-328) were evaluated for each compound alone and in a mixture on the freshwater green algae Chlamydomonas reinhardtii and the freshwater crustacean Daphnia magna. Life-history endpoints (viability, reproduction, and growth) and oxidative stress–related biomarkers (gene transcription, reactive oxygen species [ROS] production, and lipid peroxidation) were measured. Results have been published in a peer-reviewed scientific article. Citation: M. Giraudo, G. Cottin, M. Esperanza, P. Gagnon, A.O. De SIlva, M. Houde. 2017. Transcriptional and cellular effects of benzotriazole UV stabilizers UV-234 and UV-328 in the freshwater invertebrates Chlamydomonas reinhardtii and Daphnia magna. Environmental Toxicology and Chemistry 36(12): 3333-3342. doi.org/10.1002/etc.3908 2023-05-31 Environment and Climate Change Canada enviroinfo@ec.gc.ca Nature and EnvironmentAquatic animalsToxicologyChemicalsToxic substancesBioassayBiologyEnvironmentChemistryAquatic ecosystemsinvertebratesBZT-UVDaphnia magnaalgaeoxidative stresscontaminantsbiomarkersgene transcriptionChlamydomonas reinhardtiiChlamydomonas reinhardtii2-(2H-benzotriazol-2-yl)-46-bis(1-methyl-1-phenylethyl)phenol (UV-234)2-(2H-benzotriazol-2-yl)-46-di-tert-pentylphenol (UV-328)mixture toxicityChemicals Management Plan (CMP) View ECCC Data Mart (English)HTML https://data-donnees.ec.gc.ca/data/substances/assess/toxicity-of-benzotriazoles-in-aquatic-organisms/benzotriazole-uv-stabilizers-effects-in-freshwater-invertebrates/?lang=en View ECCC Data Mart (French)HTML https://data-donnees.ec.gc.ca/data/substances/assess/toxicity-of-benzotriazoles-in-aquatic-organisms/benzotriazole-uv-stabilizers-effects-in-freshwater-invertebrates/?lang=fr

In this study, the chronic effects of 2 BZT-UVs, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (UV-234) and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV-328) were evaluated for each compound alone and in a mixture on the freshwater green algae Chlamydomonas reinhardtii and the freshwater crustacean Daphnia magna. Life-history endpoints (viability, reproduction, and growth) and oxidative stress–related biomarkers (gene transcription, reactive oxygen species [ROS] production, and lipid peroxidation) were measured.

Results have been published in a peer-reviewed scientific article. Citation:

M. Giraudo, G. Cottin, M. Esperanza, P. Gagnon, A.O. De SIlva, M. Houde. 2017. Transcriptional and cellular effects of benzotriazole UV stabilizers UV-234 and UV-328 in the freshwater invertebrates Chlamydomonas reinhardtii and Daphnia magna. Environmental Toxicology and Chemistry 36(12): 3333-3342. doi.org/10.1002/etc.3908

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