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The Marches, Italy

Ca' Gallo · Air quality

Thursday, Oct 22 · Europe/Rome

Ca' Gallo air quality

US air quality index

26

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
2 µg/m³
PM2.5
6 µg/m³
PM10
8 µg/m³
Ozone
57 µg/m³
Nitrogen dioxide
2.3 µg/m³
Sulfur dioxide
0 µg/m³
Carbon monoxide
126 µg/m³
European AQI (separate scale)
2