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Systematic Review ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 1 ? Systematic review or meta-analysis. Synthesizes findings across many studies. Strongest evidence. Human Health Effects Marine & Wildlife Remediation Sign in to save

Environmental behaviors of microplastics in aquatic systems: A systematic review on degradation, adsorption, toxicity and biofilm under aging conditions

Journal of Hazardous Materials 2021 560 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 75 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Dongqin He, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Xiangliang Pan Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Xiangliang Pan Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Dongqin He, Hongwei Luo, Hongwei Luo, Hongwei Luo, Hongwei Luo, Chenyang Liu, Jun Li, Jianqiang Sun, Xiangliang Pan Chenyang Liu, Chenyang Liu, Chenyang Liu, Xiangliang Pan Xiangliang Pan Xiangliang Pan Dongqin He, Xiangliang Pan Jianqiang Sun, Dongqin He, Dongqin He, Dongqin He, Juan Xu, Dongqin He, Dongqin He, Xiangliang Pan Xiangliang Pan Chenyang Liu, Dongqin He, Dongqin He, Dongqin He, Dongqin He, Dongqin He, Xiangliang Pan Dongqin He, Dongqin He, Dongqin He, Xiangliang Pan Dongqin He, Dongqin He, Hongwei Luo, Xiangliang Pan Jianqiang Sun, Jianqiang Sun, Hongwei Luo, Juan Xu, Juan Xu, Dongqin He, Xiangliang Pan Jun Li, Xiangliang Pan Chenyang Liu, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Dongqin He, Dongqin He, Dongqin He, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Jianqiang Sun, Jianqiang Sun, Jianqiang Sun, Jianqiang Sun, Jianqiang Sun, Jun Li, Dongqin He, Dongqin He, Dongqin He, Dongqin He, Juan Xu, Xiangliang Pan Jun Li, Jun Li, Hongwei Luo, Xiangliang Pan Jianqiang Sun, Jun Li, Jun Li, Xiangliang Pan Hongwei Luo, Xiangliang Pan Hongwei Luo, Hongwei Luo, Jun Li, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Juan Xu, Juan Xu, Jun Li, Xiangliang Pan Hongwei Luo, Xiangliang Pan Xiangliang Pan Xiangliang Pan Hongwei Luo, Xiangliang Pan Hongwei Luo, Xiangliang Pan Xiangliang Pan Hongwei Luo, Hongwei Luo, Hongwei Luo, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Jun Li, Xiangliang Pan Xiangliang Pan Jun Li, Xiangliang Pan Jun Li, Jun Li, Jun Li, Xiangliang Pan Xiangliang Pan Jun Li, Xiangliang Pan Xiangliang Pan Jun Li, Jun Li, Xiangliang Pan

Summary

Aging processes like UV irradiation and physical abrasion alter microplastic surface properties, increasing their capacity to adsorb environmental pollutants while also enhancing leaching of toxic additives like phthalates, collectively amplifying the environmental toxicity of weathered microplastics.

Study Type Review

Microplastics (MPs, < 5 mm) in the environment have attracted worldwide attention due to their wide distribution and difficulty in handling. Aging processes such as UV irradiation, biodegradation, physical abrasion and chemical oxidation can affect the environmental behavior of MPs. This review article summarizes different aging processes of MPs and subsequent effects on the adsorption of pollutants, the leaching of additives, and the toxicity of MPs. In addition, the formation process of biofilm on the surface of MPs and the interactions between biofilm and aged MPs are revealed. MPs can accumulate different environmental pollutants (organic pollutants, heavy metals, microorganisms, etc.) through surface adsorption, pore filling and distribution. Moreover, the aging of MPs affects their adsorption performance toward these pollutants due to a series of changes in their specific surface area and oxygen-containing functional groups. The release of some toxic additives such as phthalates after aging can enhance the toxic effects of MPs. Aging also changes the shape and size of MPs, which can affect the eating habits of the organisms and further increase the potential toxicity of MPs. This article conducts a systematical analysis and summary of the environmental behavior and physicochemical properties of MPs as well as the changes due to MPs aging, which helps to better understand the impact of aging on MPs in the environment. Future research on MPs aging should reduce the knowledge gap between laboratory simulation and actual conditions and increase the environmental relevance.

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