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Michigan, United States

North Branch · Air quality

Sunday, Nov 1 · America/Detroit

North Branch 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
12.3 µg/m³
PM10
6 µg/m³
Ozone
26.5 µg/m³
Nitrogen dioxide
14.3 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
189.3 µg/m³
European AQI (separate scale)
1