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Minnesota, United States

North Branch · Air quality

Thursday, Oct 22 · America/Chicago

North Branch air quality

US air quality index

59

Moderate

US EPA scale

  1. Good0–50
  2. Moderate51–100Current category
  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
15 µg/m³
PM2.5
23.7 µg/m³
PM10
16 µg/m³
Ozone
15.5 µg/m³
Nitrogen dioxide
6 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
209 µg/m³
European AQI (separate scale)
2