ProPublica analysis of the EPA’s Risk Screening Environmental Indicators model After computing the average cancer risk estimates, we wrote an algorithm to identify toxic “hot spots,” defined ...

Five new compounds soon will be listed as priority toxic air contaminants in Colorado and, over the next two years, the state’s Department of Public Health and Environment and Air Quality ...

Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — poses additional risks to public health.