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Saskatchewan, Canada

Buena Vista · Air quality

Sunday, Nov 15 · America/Regina

Buena Vista air quality

US air quality index

51

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
2 µg/m³
PM2.5
4.8 µg/m³
PM10
3 µg/m³
Ozone
16.5 µg/m³
Nitrogen dioxide
1 µg/m³
Sulfur dioxide
0 µg/m³
Carbon monoxide
125 µg/m³
European AQI (separate scale)
2