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San Luis Potosí, Mexico

El Fortín May · Air quality

Thursday, Nov 12 · America/Mexico City

El Fortín May air quality

US air quality index

69

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
12 µg/m³
PM2.5
10.1 µg/m³
PM10
14 µg/m³
Ozone
35.9 µg/m³
Nitrogen dioxide
1.3 µg/m³
Sulfur dioxide
3 µg/m³
Carbon monoxide
128.3 µg/m³
European AQI (separate scale)
3