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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Sign in to save

Research progresses of microplastic pollution in freshwater systems

The Science of The Total Environment 2021 146 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.
Huahong Shi Ling Yang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Huahong Shi Shichang Kang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Zhaoqing Wang, Zhaoqing Wang, Zhaoqing Wang, Ling Yang, Yulan Zhang, Ling Yang, Shichang Kang, Yulan Zhang, Ling Yang, Ling Yang, Ling Yang, Huahong Shi Yulan Zhang, Ling Yang, Yulan Zhang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Zhaoqing Wang, Tanguang Gao, Tanguang Gao, Tanguang Gao, Tanguang Gao, Tanguang Gao, Tanguang Gao, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Shichang Kang, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, Yulan Zhang, 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, Tanguang Gao, Tanguang Gao, Ling Yang, Zhaoqing Wang, 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, Huahong Shi Ling Yang, Tanguang Gao, Shichang Kang, Ling Yang, Huahong Shi Huahong Shi Zhaoqing Wang, Huahong Shi Huahong Shi Ling Yang, Huahong Shi Huahong Shi Shichang Kang, Zhaoqing Wang, Zhaoqing Wang, Zhaoqing Wang, Huahong Shi Huahong Shi Yulan Zhang, Huahong Shi Yulan Zhang, Huahong Shi Huahong Shi Huahong Shi Tanguang Gao, Huahong Shi Huahong Shi Tanguang Gao, Yulan Zhang, Zhaoqing Wang, Huahong Shi Huahong Shi Tanguang Gao, Huahong Shi Shichang Kang, Tanguang Gao, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Yulan Zhang, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Zhaoqing Wang, Huahong Shi Huahong Shi Shichang Kang, Huahong Shi Tanguang Gao, Huahong Shi Tanguang Gao, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Tanguang Gao, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Lekhendra Tripathee, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Tanguang Gao, Tanguang Gao, Ling Yang, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Lekhendra Tripathee, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Tanguang Gao, Yulan Zhang, Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Huahong Shi Tanguang Gao, Tanguang Gao, Tanguang Gao, Huahong Shi Huahong Shi Huahong Shi

Summary

This review examines the widespread presence of microplastics in freshwater systems around the world, finding concentrations that vary by several orders of magnitude across different regions. Researchers identified fibers as the most common shape, with polypropylene and polyethylene as the dominant polymer types, primarily originating from human activities like sewage discharge. The study highlights concerns about microplastic contamination in drinking water and its potential effects on aquatic organisms.

Polymers
PE PP
Study Type Environmental

Microplastics (MPs) have received widespread attention as an emerging environmental pollutant. They are ubiquitous in the freshwater system, causing a global environmental issue. The current features and perspectives of MPs in the freshwater systems can provide the concerns of their ecological effects, which has not been addressed widely. Therefore, in this study, we reviewed the characteristics of MPs in freshwater environments and discussed their sources and potential impacts. The abundance of MPs in freshwater system ranged from approximately 3-6 orders of magnitude in different regions. There colors were mainly white and transparent, with polypropylene (PP) and polyethylene (PE) as the major polymers. The main shape of these MPs was fibers with dominant size of less than 1 mm. Analysis indicated MPs in freshwater system mostly originated from human activities such as sewage discharge in highly contaminated areas, while atmospheric long-distance transport and precipitation deposition played an important role in remote areas. Freshwater MPs pollutants also affected drinking water and aquatic organisms. Because the abundance of MPs in organisms was relatively balanced, the pollution level of biological MP pollution cannot accurately characterize the pollution status in the watershed currently. Future research should focus and strengthen on periodic monitoring to characterize the temporal and spatial changes of MPs, and enhance toxicological research to explore MPs pollution impact on biota and humans.

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