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

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 21:17 (UTC)
Created	April 17, 2026, 21:17 (UTC)
contact_email	enviroinfo@ec.gc.ca
contact_person	{"fr": "Gouvernement du Canada; Environnement et Changement climatique Canada; Science and Technology Branch / Water Science and Technology / Aquatic Contaminants Research Division, , DRCADonneesOuvertes-ACRDOpenData@ec.gc.ca", "en": "Government of Canada; Environment and Climate Change Canada; Science and Technology Branch / Water Science and Technology / Aquatic Contaminants Research Division, , DRCADonneesOuvertes-ACRDOpenData@ec.gc.ca"}
criticality_level	[]
data_dictionary	[]
geographic_scope	["0"]
open_canada_collection	primary
open_canada_date_modified	2023-05-30 19:19:03
open_canada_date_published	2017-07-09 00:00:00
open_canada_keywords	{"fr": ["Animal aquatique", "Toxicologie", "Produit chimique", "Substance toxique", "Épreuve biologique", "Biologie", "Environnement", "Chimie", "Écosystème aquatique", "invertébrés", "BZT-UV", "daphnia magna", "algues", "stress oxydant", "contaminants", "biomarqueurs", "transcription de gènes", "chlamydomonas reinhardtii", "chlamydomonas reinhardtii", "2-(2H-benzotriazol-2-yl)-4.6-bis(1-méthyl-1-phényléthyl)phénol (UV-234)", "2-(2H -benzotriazol-2-yl)-4.6-di-tert-pentylphénol (UV-328)", "toxicité de mélanges", "Plan de gestion des produits chimiques (PGPC)"], "en": ["Aquatic animals", "Toxicology", "Chemicals", "Toxic substances", "Bioassay", "Biology", "Environment", "Chemistry", "Aquatic ecosystems", "invertebrates", "BZT-UV", "Daphnia magna", "algae", "oxidative stress", "contaminants", "biomarkers", "gene transcription", "Chlamydomonas reinhardtii", "Chlamydomonas reinhardtii", "2-(2H-benzotriazol-2-yl)-4", "6-bis(1-methyl-1-phenylethyl)phenol (UV-234)", "2-(2H-benzotriazol-2-yl)-4", "6-di-tert-pentylphenol (UV-328)", "mixture toxicity", "Chemicals Management Plan (CMP)"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr	Effets des benzotriazoles stabilisateurs d'UV chez des invertébrés d'eau douce
update_frequency	as_needed