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Lombardy, Italy

San Biagio · Air quality

Monday, Nov 2 · Europe/Rome

San Biagio air quality

US air quality index

51

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
12 µg/m³
PM10
13 µg/m³
Ozone
35 µg/m³
Nitrogen dioxide
10 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
225 µg/m³
European AQI (separate scale)
2