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Occurrence and Characterization of Small Microplastics (<100 µm), and Microlitter in Seawater: the Venice Lagoon as a Case Study
Summary
Researchers characterized small microplastics smaller than 100 micrometers and microlitter in water samples from the Venice Lagoon, finding widespread contamination by tiny plastic particles. The study addresses the analytical challenge of detecting and quantifying these sub-100-micrometer particles in seawater.
How small can microplastics be? Plastics particles and fibers In 2019 the European Chemical Agency [3] has clearly defined microplastics and their sizes: "a material composed of solid polymer-containing particles, to which additives or other substances may have been added, with particle dimensions ranging from 1 nm to 5 mm and with fiber lengths ranging from 3 nm to 15 mm and length to diameter ratio of >3. ECHA has also firmly stated the need of polymer identification when analyzing microplastics.