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Microplastics in soil: A review on methods, occurrence, sources, and potential risk

The Science of The Total Environment 2021 839 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 65 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Yulan Zhang, Shichang Kang, Chenxi Wu Yulan Zhang, Yulan Zhang, Chenxi Wu Chenxi Wu Shichang Kang, Zhaoqing Wang, Zhaoqing Wang, Zhaoqing Wang, Ling Yang, Ling Yang, Ling Yang, Ling Yang, Ling Yang, Ling Yang, Ling Yang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Shichang Kang, Yulan Zhang, Zhaoqing Wang, Yulan Zhang, Shichang Kang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Shichang Kang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Shichang Kang, Shichang Kang, Shichang Kang, Yulan Zhang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Chenxi Wu Shichang Kang, Shichang Kang, Chenxi Wu Chenxi Wu Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Yulan Zhang, Yulan Zhang, Shichang Kang, Shichang Kang, Yulan Zhang, Yulan Zhang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Yulan Zhang, Shichang Kang, Yulan Zhang, Chenxi Wu Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Zhaoqing Wang, Shichang Kang, Ling Yang, Shichang Kang, Shichang Kang, Shichang Kang, Yulan Zhang, Yulan Zhang, Shichang Kang, Chenxi Wu Chenxi Wu Chenxi Wu Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Yulan Zhang, Yulan Zhang, Yulan Zhang, Shichang Kang, Ling Yang, Ling Yang, Ling Yang, Zhaoqing Wang, Zhaoqing Wang, Zhaoqing Wang, Zhaoqing Wang, Zhaoqing Wang, Shichang Kang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Zhaoqing Wang, Chenxi Wu Chenxi Wu Shichang Kang, Chenxi Wu Chenxi Wu Chenxi Wu Yulan Zhang, Shichang Kang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Ling Yang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Yulan Zhang, Chenxi Wu

Summary

This review summarizes what is known about microplastic contamination in soils worldwide, covering detection methods, sources, and potential risks. Microplastics are found in soils on every continent studied, though research in Africa, South America, and Oceania remains scarce. The review highlights that microplastics accumulate in soil over time and can interact with other pollutants, potentially affecting soil health and the safety of food crops.

Microplastic is an emerging contaminant of concern in soil globally due to its widespread and potential risks on the ecological system. Some basic issues such as the occurrence, source, and potential risks of microplastics in the soil are still open questions. These problems arise due to the lack of systematic and comprehensive analysis of microplastic in soils. Therefore, we comprehensively reviewed the current status of knowledge on microplastics in soil on detection, occurrence, characterization, source, and potential risk. Our review suggests that microplastics are ubiquitous in soil matrices globally. However, the research progress of microplastics in the soil is restricted by inherent technological inconsistencies and difficulties in analyzing particles in complex matrices, and studies on the occurrence and distribution of microplastics in soil environments remain very scarce, especially in Africa, South America, and Oceania. The consistency of the characteristics and composition of the microplastics in the aquatic environment and soil demonstrate they may share sources and exchange microplastics. Wide and varied sources of microplastic are constantly filling the soil, which causes the accumulation of microplastics in the soil. Studies on the effects and potential risks of microplastics in soil ecosystems are also reviewed. Limited research has shown that the combination and interaction of microplastics with contaminants they absorbed may affect soil health and function, and even migration along the food chain. The occurrence and impact of microplastic on the soil depend on the morphology, chemical components, and natural factors. We conclude that large research gaps exist in the quantification and estimation of regional emissions of microplastics in soil, factors affecting the concentration of microplastics, and microplastic disguising as soil carbon storage, which need more effort.

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