Public water wells in communities of color might be disproportionately polluted by pesticides contaminated with harmful per and polyfluoroalkyl substances, according to a new study led by a team of researchers from UC Berkeley School of Public Health. Public water wells in communities of color might be disproportionately polluted by pesticides contaminated with harmful per and polyfluoroalkyl substances, according to a new study led by a team of researchers from UC Berkeley School of Public Health. Environment Phys.org – latest science and technology news stories