According to new research, “soils, sewage sludge and paint are major sources” of PCB contamination in Chicago, and “current cleanup strategies may not be the most effective for protecting people’s health.”  The research also suggests that “more than 400 pounds of toxic PCBs are emitted to Chicago’s air each year.”  Read the News Story

This is the unfortunate consequence of chemicals like PCBs, which were banned in 1979. It can take years to remove these chemicals from the environment and that is why they are still present decades after they have been banned.