A study conducted by researchers affiliated with the University of São Paulo (USP) in Brazil has concluded that particles of glitter can hinder the growth of organisms at the base of aquatic ecosystems, such as cyanobacteria (blue-green algae), which play a key role in the biogeochemical cycles of water and soil, as well as being eaten by other organisms. An article on the study is published in the journal Aquatic Toxicology.
