EPA FACT SHEET: Mercury and Air Toxics Standard

"On December 16, 2011, the U.S. Environmental Protection Agency (EPA) finalized the first national Clean Air Act standards to reduce mercury and other toxic air pollution from coal and oil‐fired power plants. The science shows that mercury and toxic air pollution is a threat to public health and has real impacts on people’s lives. This fact sheet provides an overview of the benefits and highlights key impacts..."  

Estimating Mortality Risk Reduction and Economic Benefits from Controlling Ozone Air Pollution
"January 6, 2010 – The Environmental Protection Agency has proposed to strengthen the national ambient air quality standards for ground-level ozone. Ground-level ozone is a primary component of smog. The proposed revisions are based on scientific evidence about ozone and its effects on people and sensitive trees and plants. EPA will accept comments for 60 days following publication of the proposal in the Federal Register."