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Colorado, United States

Dakota Ridge · Air quality

Saturday, Nov 14 · America/Denver

Dakota Ridge air quality

US air quality index

50

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
10 µg/m³
PM2.5
14.8 µg/m³
PM10
13 µg/m³
Ozone
29.5 µg/m³
Nitrogen dioxide
20 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
179 µg/m³
European AQI (separate scale)
2