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Coahuila, Mexico

Ramos Arizpe · Air quality

Wednesday, Nov 4 · America/Monterrey

Ramos Arizpe air quality

US air quality index

47

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
17 µg/m³
PM2.5
9.7 µg/m³
PM10
20 µg/m³
Ozone
29.3 µg/m³
Nitrogen dioxide
22 µg/m³
Sulfur dioxide
4 µg/m³
Carbon monoxide
289.7 µg/m³
European AQI (separate scale)
2