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Piedmont, Italy

San Michele · Air quality

Wednesday, 11 Nov · Europe/Rome

San Michele air quality

US air quality index

109

E no good for sensitive people

US EPA scale

  1. Good0–50
  2. Moderate51–100
  3. E no good for sensitive people101–150Current category
  4. E no good for health151–200
  5. E bad well well for health201–300
  6. Dangerous301–500+

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
46 µg/m³
PM2.5
49 µg/m³
PM10
49 µg/m³
Ozone
12.7 µg/m³
Nitrogen dioxide
18.7 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
485.7 µg/m³
European AQI (separate scale)
4