The U.S. Power Sector NOx Emissions Reduction

The 1990 U.S. Clean Air Act brought standards to the power sector to reduce the level of nitrogen oxide (NOx) emitted into the atmosphere. This NOx Tracker will monitor the NOx reduction the power generation industry has achieved since 1995. Nitrogen oxides are pollutants produced when fuel is burned at high temperatures — when nitrogen and oxygen gases react during combustion. Power plants, automobiles, boats and construction vehicles produce nitrogen oxides.