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Ticino, Switzerland

San Nazzaro · Air quality

Friday, Nov 6 · Europe/Zurich

San Nazzaro air quality

US air quality index

58

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
23 µg/m³
PM2.5
25 µg/m³
PM10
26 µg/m³
Ozone
30.7 µg/m³
Nitrogen dioxide
22.3 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
323.3 µg/m³
European AQI (separate scale)
2