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Acute and chronic combined effect of polystyrene microplastics and dibutyl phthalate on the marine copepod Tigriopus japonicus

Chemosphere 2020 63 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Yang Liu, Yang Liu, Yang Liu, Yang Liu, Xianliang Yi, Kaiming Yang, Xianliang Yi, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Yang Liu, Kaiming Yang, Yang Liu, Kaiming Yang, Zhaochuan Li, Xianliang Yi, Zhaochuan Li, Yang Liu, Xianliang Yi, Yang Liu, Hao Zhou Yang Liu, Yang Liu, Yang Liu, Hao Zhou Yang Liu, Hao Zhou Yang Liu, Hao Zhou Wentao Li, Xianliang Yi, Xianliang Yi, Xianliang Yi, Yang Liu, Xianliang Yi, Yang Liu, Xianliang Yi, Hao Zhou Yang Liu, Yang Liu, Yang Liu, Jingjing Zhan, Yang Liu, Yang Liu, Yang Liu, Hao Zhou Yang Liu, Wentao Li, Zhaochuan Li, Zhaochuan Li, Hao Zhou Xianliang Yi, Kaiming Yang, Hao Zhou Zhaochuan Li, Xianliang Yi, Jingjing Zhan, Yang Liu, Jingjing Zhan, Kaiming Yang, Yang Liu, Hao Zhou Zhaochuan Li, Hao Zhou Hao Zhou Yang Liu, Xianliang Yi, Yang Liu, Jingjing Zhan, Zhaochuan Li, Wentao Li, Wentao Li, Wentao Li, Jingjing Zhan, Kaiming Yang, Wentao Li, Yang Liu, Hao Zhou Kaiming Yang, Xianliang Yi, Kaiming Yang, Hao Zhou Xianliang Yi, Jingjing Zhan, Yang Liu, Zhaochuan Li, Yang Liu, Zhaochuan Li, Kaiming Yang, Yang Liu, Xianliang Yi, Yang Liu, Jingjing Zhan, Jingjing Zhan, Yang Liu, Xianliang Yi, Xianliang Yi, Xianliang Yi, Xianliang Yi, Wentao Li, Xianliang Yi, Wentao Li, Wentao Li, Wentao Li, Xianliang Yi, Xianliang Yi, Xianliang Yi, Xianliang Yi, Xianliang Yi, Xianliang Yi, Yang Liu, Jingjing Zhan, Xianliang Yi, Xianliang Yi, Xianliang Yi, Xianliang Yi, Jingjing Zhan, Wentao Li, Hao Zhou Xianliang Yi, Hao Zhou

Summary

Researchers tested acute and chronic combined effects of polystyrene microplastics and dibutyl phthalate (a common plastic additive) on the marine copepod Tigriopus japonicus, finding that microplastics altered phthalate accumulation in the copepod and that combined exposure amplified reproductive and developmental toxicity.

Polymers

Body Systems

Reproductive

Models

Invertebrate other

Dibutyl phthalate (DBP) is a commonly used additive in plastic products, so it may potentially coexist with microplastics (MPs) in marine environment. The ingestion of MPs might affect the accumulation of DBP in marine organisms. In this study, the marine copepod Tigriopus japonicus was applied to study the combined effect of DBP and polystyrene microplastics (mPS) on the copepod through both acute mortality tests and chronic reproduction tests. The LC of DBP was 1.23 mg L (95% CI: 1.11-1.35 mg L), while exposure to mPS didn't have significant lethal effect on the copepods. Adsorption to MPs led to decreased bioavailability of DBP, resulting in decreased toxicity of DBP. In contrast to the results of acute toxicity tests, DBP didn't affect the reproduction of the copepods at lower exposure concentrations, while mPS reduced the number of nauplii and extended the time to hatch. Similar as acute toxicity tests, antagonistic interaction was observed for mPS and DBP in chronic reproduction tests, which might be attributed to promoted aggregation of mPS at presence of DBP. Overall, antagonistic toxicity effect between the two pollutants was observed for both acute and chronic tests, but the mechanisms of the interaction between DBP and mPS were different. Results of the present study highlighted the importance of long-term exposure when evaluating the toxic effect of MPs and their combined effect with other chemicals.

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