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Guanajuato, Mexico

El Penitente · Air quality

Tuesday, Nov 3 · America/Mexico City

El Penitente 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
10 µg/m³
PM2.5
5.5 µg/m³
PM10
10 µg/m³
Ozone
24 µg/m³
Nitrogen dioxide
28.7 µg/m³
Sulfur dioxide
4.3 µg/m³
Carbon monoxide
256.3 µg/m³
European AQI (separate scale)
1