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Role of benzophenone-3 additive in chronic toxicity of polyethylene microplastic fragments to Daphnia magna

The Science of The Total Environment 2021 69 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Jinyoung Song, Jinyoung Song, Joorim Na Jinyoung Song, Jinyoung Song, Dahee An, Joorim Na Jinyoung Song, Jinyoung Song, Joorim Na Joorim Na Joorim Na Joorim Na Joorim Na Joorim Na Jinho Jung, Jinyoung Song, Joorim Na Jinyoung Song, Jinyoung Song, Jinyoung Song, Jinho Jung, Jinyoung Song, Jinyoung Song, Jinyoung Song, Jinyoung Song, Joorim Na Joorim Na Joorim Na Joorim Na Joorim Na Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Dahee An, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinyoung Song, Jinho Jung, Jinyoung Song, Jinyoung Song, Jinho Jung, Joorim Na Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Jinho Jung, Joorim Na

Summary

Researchers studied how the UV-filter additive benzophenone-3 in polyethylene microplastics affects chronic toxicity in the water flea Daphnia magna. Surprisingly, daphnids exposed to microplastics containing BP-3 had higher survival rates than those exposed to plain microplastics, likely because BP-3 leachate altered the organisms' light-seeking behavior, reducing their microplastic intake. However, both BP-3-containing microplastics and BP-3 alone negatively affected reproduction, suggesting the additive introduces distinct toxicity concerns.

Polymers

Models

Daphnia

Plastic additives may accelerate adverse effects of microplastics (MPs). This study aimed to identify the role of benzophenone-3 (BP-3) additive (10.82 ± 1.20% w/w) in chronic toxicity of polyethylene MP fragments to Daphnia magna (D. magna). MP fragments with and without BP-3 (48.37 ± 6.26 and 44.39 ± 11.16 μm, respectively) were synthesized and 4 d-old D. magna were exposed for 17 d. Daphnids exposed to MP/BP-3 fragments (98%) showed higher survival than those exposed to MP fragments (62%), which can be explained by a significantly low (p < 0.0001) bioconcentration of MP/BP-3 fragments. BP-3 leachate induced significantly low (p < 0.05) phototactic behavior of D. magna, likely leading to the low bioconcentration of MP/BP-3 fragments. Unlike MP fragments, both MP/BP-3 fragments and BP-3 additive inhibited embryonic development and offspring growth in a similar manner. Additionally, only BP-3 additive significantly induced (p < 0.05) higher lipid peroxidation in D. magna. This study suggests the critical role of plastic additives in MPs chronic toxicity to aquatic organisms, which should be further identified for other environmentally relevant plastic additives.

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