Notice
5 Sep 2025
air quality, environmental regulation, monitoring methods, compliance, epa, air pollutants
🌫️EPA Designates New Air Monitoring Methods for Ambient Air Quality
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.
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Notice
7 Apr 2025
compliance, environmental regulation, epa, air quality, pm2.5, monitoring methods, pm10-2.5
🌫️EPA Designates New Methods for Monitoring Air Quality
Notice is hereby given that the Environmental Protection Agency (EPA) has designated 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.
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