After residents of Tonawanda, N.Y., became sick, they rallied to fight high levels of hazardous chemicals emitting from a dilapidated plant. In doing so, they revealed weaknesses in the way the EPA regulates air pollution. Video Credit: John Poole / NPR
Want to know if plants in your town are a health risk? Zoom in on our interactive map.
Poisoned Places, a four-part series from NPR News Investigations and The Center for Public Integrity.