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Maryland, United States

Greenmount West · Air quality

Wednesday, Nov 4 · America/New York

Greenmount West air quality

US air quality index

41

Good

US EPA scale

  1. Good0–50Current category
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150
  4. Unhealthy151–200
  5. Very unhealthy201–300
  6. Hazardous301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Understand the EPA scale

All pollutants

PM1
7 µg/m³
PM2.5
5.7 µg/m³
PM10
10 µg/m³
Ozone
23.9 µg/m³
Nitrogen dioxide
13.7 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
158.3 µg/m³
European AQI (separate scale)
1