When it comes to sources of microplastics, water bottles, plastic bags, or even clothing fibers might spring to mind. But scientists now say that another source deserves more attention.
A University of Toronto study identifies paint as a major, understudied source of toxic microplastics in the environment, potentially the largest source, releasing 1,857 kilotonnes annually worldwide. These microplastics, less than 5mm in size, can enter the food supply and may have toxic effects on human and marine life, including potentially carrying other toxins into the body and causing cancer. Researchers call for urgent research into paint microplastic sources, environmental concentrations, and toxicological effects to inform policy and management.
