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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

Occurrence, Sources, Transport, and Fate of Microplastics in the Great Lakes–St. Lawrence River Basin

˜The œhandbook of environmental chemistry 2020 11 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Paul A. Helm

Summary

Researchers documented that microplastics smaller than five millimeters are present throughout the Great Lakes and St. Lawrence River system, from tributary streams to the Atlantic Ocean. This finding suggests that the Great Lakes region is both a major accumulation zone and a transport pathway for microplastic pollution into the broader marine environment.

Study Type Environmental

Microplastics, plastic particles less than five millimeters in size, are found in each of the five Laurentian Great Lakes, their tributary streams and rivers, and the St. Lawrence River carrying Great Lakes water to the Atlantic Ocean. Although standardized...

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