"Americans are breathing the cleanest air since 1970. Criteria air pollutant emissions under President Trump dropped 7 percent since 2017," said EPA Administrator Andrew Wheeler.

Declines in air pollutant concentrations since 2017:

• Carbon Monoxide (CO) 8-Hour, 10%
• Lead (Pb) 3-Month Average, 28%
• Nitrogen Dioxide (NO₂) Annual, 4%
• Nitrogen Dioxide (NO₂) 1-Hour, 2%
• Ozone (O₃) 8-Hour, 4%
• Particulate Matter 10 microns (PM₁₀) 24-Hour, 22%
• Particulate Matter 2.5 microns (PM_2.5) Annual, 7%
• Particulate Matter 2.5 microns (PM_2.5) 24-Hour, 12%
• Sulfur Dioxide (SO₂) 1-Hour, 10%

"This clean air progress proves that when EPA focuses on its core mission and works collaboratively with states, we can achieve world-leading emissions reductions to the benefit of our nation, its citizens, and the environment.">>>