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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 Human Health Effects Marine & Wildlife Sign in to save

Microplastics in the Environment

2018 22 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 30 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Richard C. Thompson Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Imogen E. Napper, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Imogen E. Napper, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Imogen E. Napper, Richard C. Thompson Richard C. Thompson Imogen E. Napper, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Imogen E. Napper, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Imogen E. Napper, Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson Richard C. Thompson

Summary

This chapter reviews the sources, distribution, and environmental persistence of microplastics — small plastic debris less than 5 mm — in both marine and terrestrial environments. It provides an accessible overview of how microplastics enter ecosystems and the concerns they raise for wildlife and human health.

Study Type Environmental

Microplastics are small pieces of plastic debris less than 5 mm in diameter. They have accumulated in the environment as a consequence of: the direct release of small particles, such as those used in cosmetics; or as a consequence of wear, for example fibres released from textiles. The main source of microplastic is considered to be the fragmentation of larger items of plastics in the environment. Microplastics are widely distributed in freshwater and marine environments including remote locations such as the arctic and deep sea. A wide range of organisms are known to ingest microplastics and laboratory studies indicate the potential for harmful effects. Plastic debris can also transport co-contaminants including chemical additives and pollutants sorbed from sea water. These chemicals can be released to organisms upon ingestion, but there is little evidence that plastics provide an important pathway leading to toxicological effects in environmentally relevant scenarios. Removing microplastics from the environment is impractical and the most effective solutions are to minimise the release of plastics to the environment as litter. In this regard much could be achieved by actions to reduce the accumulation of larger items of litter such as packaging, which will eventually fragment into microplastics.

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