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Maryland, United States

College Park · Air quality

Tuesday, Nov 3 · America/New York

College Park air quality

US air quality index

34

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
6 µg/m³
PM2.5
9.1 µg/m³
PM10
12 µg/m³
Ozone
33 µg/m³
Nitrogen dioxide
4.7 µg/m³
Sulfur dioxide
1.3 µg/m³
Carbon monoxide
168.7 µg/m³
European AQI (separate scale)
1