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Piedmont, Italy

Quinto Vercellese · Air quality

Friday, Oct 30 · Europe/Rome

Quinto Vercellese air quality

US air quality index

145

Unhealthy for sensitive groups

US EPA scale

  1. Good0–50
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150Current category
  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
26 µg/m³
Ozone
45.7 µg/m³
Nitrogen dioxide
15 µg/m³
Sulfur dioxide
2.3 µg/m³
Carbon monoxide
254.7 µg/m³
European AQI (separate scale)
5