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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