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Piedmont, Italy

Castelnuovo Scrivia · Air quality

Friday, Nov 13 · Europe/Rome

Castelnuovo Scrivia air quality

US air quality index

37

Good

US EPA scale

  1. Good0–50Current category
  2. Moderate51–100
  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
10 µg/m³
PM2.5
10 µg/m³
PM10
11 µg/m³
Ozone
27 µg/m³
Nitrogen dioxide
11.7 µg/m³
Sulfur dioxide
1.3 µg/m³
Carbon monoxide
333 µg/m³
European AQI (separate scale)
1