México, Mexico
Santiago Teyahualco · Air quality
Monday, Nov 9 · America/Mexico City
Santiago Teyahualco air quality
US air quality index
101Unhealthy for sensitive groups
US EPA scale
- Good0–50
- Moderate51–100
- Unhealthy for sensitive groups101–150Current category
- Unhealthy151–200
- Very unhealthy201–300
- 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 scaleAll pollutants
- PM1
- 25 µg/m³
- PM2.5
- 17.4 µg/m³
- PM10
- 27 µg/m³
- Ozone
- 86.2 µg/m³
- Nitrogen dioxide
- 22.3 µg/m³
- Sulfur dioxide
- 19.3 µg/m³
- Carbon monoxide
- 307.7 µg/m³
- European AQI (separate scale)
- 4