Mercury and Air Toxics Standards (MATS)
- Power plants are the biggest source of mercury
Power plants are currently the dominant emitters of mercury, acid gases and many toxic metals in the U.S. Read more
- Existing technology can remove toxics
Controls to meet limits are widely available. Learn more
- Plants have time to meet the standards
It is several years before plants need to comply. Learn more
- Rule will improve public health
Benefits total $37 billion to $90 billion each year. Read more
- MATS reduces toxic pollution
Toxics from fossil fuel-fired power plants cause serious health impacts. Learn more
- Power plant pollution and health effects
Methylmercury exposure is a particular concern for women of childbearing age, unborn babies, and young children. Learn more.
- Healthier lakes, streams and fish
Power plant emissions damage our environment and pollute our nation's lakes and streams. Read more
- Less mercury contamination
Mercury contamination affects populations of numerous fish species, waterfowl and mammals that eat fish. Learn more
- Improved visibility
Pollution from power plants degrades visibility where we live, work and travel. Learn more.
Public service announcement about the EPA's Mercury
and Air Toxics Standards
July 17, 2020 - EPA finalized minor revisions to the electronic reporting requirements for MATS.
May 22, 2020 - EPA published a final revised Supplemental Cost Finding for MATS and the Clean Air Act required “risk and technology review.”
April 15, 2020 - EPA published a MATS subcategory for certain existing units that fire coal refuse.