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Microplastic-derived dissolved organic matter and its biogeochemical behaviors in aquatic environments: A review

Critical Reviews in Environmental Science and Technology 2024 84 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Shasha Liu, Shasha Liu, Shasha Liu, Shasha Liu, Shasha Liu, Yue Qiu, Yue Qiu, Baoshan Xing Zhongqi He, Zhongqi He, Fengchang Wu, Fengchang Wu, Fengchang Wu, Shasha Liu, Baoshan Xing Fengchang Wu, Baoshan Xing Fengchang Wu, Chunhong Shi, Chunhong Shi, Zhongqi He, Fengchang Wu, Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Fengchang Wu, Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Fengchang Wu, Baoshan Xing Fengchang Wu, Fengchang Wu, Fengchang Wu, Fengchang Wu, Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Shasha Liu, Zhongqi He, Zhongqi He, Baoshan Xing Baoshan Xing Shasha Liu, Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Fengchang Wu, Fengchang Wu, Zhongqi He, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Shasha Liu, Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Fengchang Wu, Baoshan Xing Zhongqi He, Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Fengchang Wu, Baoshan Xing Baoshan Xing Baoshan Xing

Summary

This review examines how microplastics release dissolved organic matter (MP-DOM) as they break down in water, and how these released chemicals affect water ecosystems. MP-DOM can interact with other pollutants and alter carbon cycling in natural waters, with the type and amount varying based on plastic composition and weathering conditions. Understanding what microplastics release into water as they degrade is important because these dissolved chemicals may have their own toxic effects on aquatic life and water quality.

Microplastic-derived dissolved organic matter (MP-DOM) exerts great effects on organic carbon pool and its environmental behaviors in natural waters due to increasing amounts of uncontrolled plastic disposal. However, systematic understanding of chemical composition and environmental impacts of MP-DOM in aquatic systems was limited. In this work, the chemical and molecular structures of MP-DOM derived from diverse characterization methods were examined and synthesized to provide a basis for understanding their environmental processes. Additionally, those factors affecting the quantity and quality of released MP-DOM (e.g., plastic types, water environments, and external weathering conditions) were reviewed. Furthermore, environmental behaviors of MP-DOM including its biological degradation, adsorption on mineral surfaces, and interaction with pollutants, as well as their environmental impacts were comprehensively summarized. Finally, we outlooked the future research directions on MP-DOM studies, aiming to contribute to a deeper understanding of the environmental mechanisms and control of plastic pollution through the analysis of MP-DOM. This review provides information for further understanding the impact of microplastics on natural water, which might have consequences on the fluxes of carbon and biogeochemical behaviors of metal and organic contaminants.

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