Short-term and long-term effects of microplastics and organic UV-filters on the invertebrate model species Daphnia magna

Environmental Science and Pollution Research, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

There is an ongoing debate regarding the role of microplastics (MPs) in enhancing effects various chemical compounds, highlighting need for more detailed analyses. In this study, neonates water flea (Daphnia magna) were exposed to polystyrene MPs (PS-MPs; 3 µm; exposure concentration, 1.25 mg/L), a mixture seven organic UV-filters (avobenzone, ethylhexyl triazone, homosalate, iscotrizinol, octinoxate, octisalate, and octocrylene; each at low environmental concentration 200 ng/L), or combination both pollutants 3, 7, 21 days. Results showed that PS-MPs alone decreased body size daphnids, while all treatments increased heart rate by end 21-day exposure. On days 21, + reduced swimming speed total distance travelled. Additionally, time first egg production, but number number, maximum neonate during treatment. Similarly, combined production number. All multixenobiotic resistance activity on only elevated CYP450 day 3. GST early no effect 21. CAT was also affected time-dependent manner. These findings demonstrate chronic UV-filters, applied individually moderately impacts development, rate, D. magna, significantly altering reproduction key cellular functions such as membrane transport activity, metabolism, antioxidant defense. Co-exposure did not reveal clear pattern synergism antagonism, suggesting joint toxicity risks these xenobiotics typically emerge concentrations higher than levels. Future studies should explore potential interactions thoroughly assess transgenerational defense pathways.

Язык: Английский

A novel approach for unveiling co-occurrence patterns of UV filter mixtures in sunscreens: Prioritization for hazard and risk assessment

Ecotoxicology and Environmental Safety, Год журнала: 2024, Номер 290, С. 117527 - 117527

Опубликована: Дек. 21, 2024

Язык: Английский