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Piedmont, Italy

Grana Monferrato · Air quality

Tuesday, Nov 10 · Europe/Rome

Grana Monferrato air quality

US air quality index

70

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
17 µg/m³
PM2.5
18 µg/m³
PM10
18 µg/m³
Ozone
25.3 µg/m³
Nitrogen dioxide
10.7 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
346 µg/m³
European AQI (separate scale)
3