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Chiapas, Mexico

Francisco I. Madero · Air quality

Saturday, Nov 7 · America/Mexico City

Francisco I. Madero air quality

US air quality index

54

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
14 µg/m³
PM2.5
17 µg/m³
PM10
18 µg/m³
Ozone
43.3 µg/m³
Nitrogen dioxide
2.7 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
209.7 µg/m³
European AQI (separate scale)
2