The Answer was signed into law in Answer in response to

Last updated: 3/28/2023

The Answer was signed into law in Answer in response to public outrage following incidents like in Donora and London The law directed the Answer to establish limits for Answer ones that caused the most environmental damage and health hazards In Answer the Clean Air Act was amended with several Answer issues that were still not being addressed Clean Air Act additions 1990 criteria pollutants Environmental Protection Agency 1970 to cover