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Microplastics pollution in the rivers, its source, and impact on aquatic life: a review

International Journal of Environmental Science and Technology 2024 19 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Chandra Bhan, Narendra Kumar, Vetrimani Elangovan

Summary

Researchers reviewed global evidence of microplastic contamination in rivers and lakes, finding that plastic particles serve as carriers for toxic chemicals, harm aquatic life through ingestion and entanglement, and enter human food and water supplies, while also exploring plant-based plastic alternatives that could reduce future pollution.

Polymers

Microplastic contamination of lakes and rivers is an emerging environmental issue. Sources, environmental fate, in-situ behaviour, concentration and harmful impacts of microplastics on aquatic life are the focus of this review paper. Present review summarises the current state of information about microplastics in riverine ecosystems around the world. The tiny plastic particles can serve as substrate as well as transporters of a variety of toxicants, including recalcitrant chemical compounds from miscellaneous sources having potential to seriously harm people's health. Further, intake and entanglement of microplastics can inflict a number of adverse bio-physico-chemical impacts on people and other living creatures. Secondary microplastics are produced by the disintegration of bigger size primary plastic particles and ultimately end up in the terrestrial and aquatic habitats. Comprehensive information on microplastic pollution in fresh water ecosystems is still limited on a single platform. This review critically addresses the microplastic pollution in rivers, sources, and its impact around the world. Further, possible replacements for plastics like modified starch, cellulose, esters of cellulose, polylactic acid etc. derived from biomass and microorganisms are also examined.

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