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Sinaloa, Mexico

San Rafael · Air quality

Saturday, Oct 31 · America/Mazatlan

San Rafael air quality

US air quality index

18

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
2 µg/m³
PM2.5
3.4 µg/m³
PM10
6 µg/m³
Ozone
22.7 µg/m³
Nitrogen dioxide
5 µg/m³
Sulfur dioxide
1.3 µg/m³
Carbon monoxide
110.7 µg/m³
European AQI (separate scale)
1