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Sonora, Mexico

Loma del Refugio · Air quality

Thursday, Nov 12 · America/Hermosillo

Loma del Refugio air quality

US air quality index

27

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
7 µg/m³
PM2.5
7.6 µg/m³
PM10
8 µg/m³
Ozone
21.2 µg/m³
Nitrogen dioxide
16 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
209.3 µg/m³
European AQI (separate scale)
1