Benefits and Costs of the Clean Air Act 1990-2020 Full Report A 2011 follow-up report benefits greatly exceed the costs estimates Independent analysis averted premature deaths were prevented Independent analysis 2020 clean-air standards A 2011 peer-reviewed EPA study Independent analysis study $30 back for every $1 spent 22.4 million Independent analysis EPA estimates Full Report EPA estimated will have prevented particulate matter estimates EPA scientists According to the Environmental Protection Agency saving hundreds of thousands of lives 160,000 adults saving hundreds of thousands of lives study Studies have shown study premature deaths were prevented 2.4 million study 230,000 premature deaths EPA estimated A 2011 peer-reviewed EPA study Independent analysis