icon.article.dark Industry news The Potential Toxicological Effects of Microplastics (Polystyrene Particles) On Humans Microplastics (such as polystyrene particles), which are small plastic particles, films, fragments, pellets, and textile fibers, are the main carriers that cause environmental pollution. Microplastics, whose particle sizes range from a few microns to a few millimeters, are inhomogeneous plastic Lees meer icon.arrow--dark