Cleaner air: great progress has been made, even as demand for electricity increases.
The U.S. electric power sector is reducing air emissions substantially under existing programs:
2011 sulfur dioxide (SO2) emissions levels were down 72 percent from 1990 national levels. EPA’s utility MACT Regulatory Impact Analysis projects the sector’s SO2 emissions to decline by almost 90 percent from 1990 to 2015.
Direct particulate matter emissions are controlled by well over 90 percent via controls on every plant.
Mercury emissions will be reduced 90 percent with the MATS rule.
2011 nitrogen oxides (NOx) emissions levels were down 70 percent from 1990 national levels. The power sector contributes only 12 percent of man-made NOx emissions and six percent of national man-made ozone precursors currently. NOx emissions will be further reduced under the PM2.5 NAAQS, ozone NAAQS and regional haze BART.
The power sector is regulated under many Clean Air Act programs:
- Utility MACT Rule
Access the Federal Register Publication of the final Utility MACT rule and NSPS Rules.
Find out about the electric power industry's commitment to reducing mercury emissions.
- New Source Review
Learn why New Source Review (NSR) is one of the most complex and burdensome programs of the federal Clear Air Act.
Find out how electric companies are reducing emissions that form ozone.
- Particulate Matter
Learn how electric companies are reducing emissions that form particulate matter.
- Interstate Transport
Find out about the Cross-State Air Pollution Rule and other actions to address interstate transport of air emissions.
- Toxics Release Inventory
Learn about emissions reporting under the Toxics Release Inventory.
- Regional Haze