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Piedmont, Italy

Isola d'Asti · Air quality

Saturday, Nov 7 · Europe/Rome

Isola d'Asti air quality

US air quality index

71

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
23 µg/m³
PM2.5
25 µg/m³
PM10
25 µg/m³
Ozone
21.7 µg/m³
Nitrogen dioxide
20.7 µg/m³
Sulfur dioxide
0.7 µg/m³
Carbon monoxide
415.3 µg/m³
European AQI (separate scale)
3