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Original research — experimental, observational, or case-control study. Direct primary evidence.
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Proportion of microplastics by polymer name for A.
Figshare
2025
Valerie S. Langlois (7320335),
Tuan Anh To (11356336),
Eve Larocque (21192548),
Julien Gigault (1569169),
Raphael A. Lavoie (1686730)
Summary
Researchers characterized the proportional composition of microplastics by polymer type across 11 sites in the St. Lawrence River and Estuary using two net mesh sizes (300 µm and 100 µm), sampling from upstream to downstream locations. This dataset reveals site-specific and mesh-size-dependent variation in the polymer makeup of surface water microplastics.
300 µm and B. 100 µm mesh size across all sites. Left to right: upstream to downstream; sites 1 to 11.