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Mixture Toxicity of Nickel and Microplastics with Different Functional Groups on Daphnia magna

Kim, Dokyung, Chae, Yooeun, An, Youn-Joo·2017·Environmental Science & Technology

Abstract

In recent years, discarded plastic has become an increasingly prevalent pollutant in aquatic ecosystems. These plastic wastes decompose into microplastics, which pose not only a direct threat to aquatic organisms but also an indirect threat via adsorption of other aquatic pollutants. In this study, we investigated the toxicities of variable and fixed combinations of two types of microplastics [one coated with a carboxyl group (PS-COOH) and the other lacking this functional group (PS)] with the heavy metal nickel (Ni) on Daphnia magna and calculated mixture toxicity using a toxic unit model. We found that toxicity of Ni in combination with either of the two microplastics differed from that of Ni alone. Furthermore, in general, we observed that immobilization of D. magna exposed to Ni combined with PS-COOH was higher than that of D. magna exposed to Ni combined with PS. Collectively, the results of our study indicate that the toxic effects of microplastics and pollutants may vary depending on the specific properties of the pollutant and microplastic functional groups, and further research on the mixture toxicity of various combinations of microplastics and pollutants is warranted.

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Metadata

Authors
Kim, D., Chae, Y., & An, Y.-J.
Venue
Environmental Science & Technology
Published
2017-10-25
Volume
51
Issue
21
Pages
12852-12858
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2762829739
Cited by
290
References
14
FWCI
8.13
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Mixture Toxicity of Nickel and Microplastics with Different Functional Groups on Daphnia magna. https://app.cochat.ai/papers/10.1021/acs.est.7b03732
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Kim, D., Chae, Y., & An, Y.-J. (2017). Mixture Toxicity of Nickel and Microplastics with Different Functional Groups on Daphnia magna. Environmental Science & Technology. https://doi.org/10.1021/acs.est.7b03732

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