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Piedmont, Italy

Alfiano Natta · Air quality

Friday, Nov 13 · Europe/Rome

Alfiano Natta air quality

US air quality index

87

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
26 µg/m³
PM2.5
28 µg/m³
PM10
28 µg/m³
Ozone
22.3 µg/m³
Nitrogen dioxide
15.7 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
477.7 µg/m³
European AQI (separate scale)
4