5 Sep 2025
🌫️EPA Designates New Air Monitoring Methods for Ambient Air Quality
Ambient Air Monitoring Reference and Equivalent Methods; Designation of Three New Equivalent Methods and One New Reference Method
Summary
Notice is hereby given that the Environmental Protection Agency (EPA) has designated one new equivalent method for measuring SO<INF>2</INF>, one new reference method for measuring NO<INF>2</INF>, one new equivalent method for measuring concentrations of PM<INF>2.5</INF>, and one new equivalent method for measuring PM<INF>10-2.5</INF> in ambient air.
Agencies
- Environmental Protection Agency
Business Impact
$$ - Med
The regulation establishes new air monitoring methods that businesses must comply with under NAAQS. Its implementation impacts air quality monitoring practices and any businesses involved in environmental compliance will need to adapt or potentially invest in new monitoring technologies.