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Lombardy, Italy

Lenna · Air quality

Friday, 30 Oct · Europe/Rome

Lenna air quality

US air quality index

67

Moderate

US EPA scale

  1. Good0–50
  2. Moderate51–100Current category
  3. E no good for sensitive people101–150
  4. E no good for health151–200
  5. E bad well well for health201–300
  6. Dangerous301–500+

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
31 µg/m³
PM2.5
33 µg/m³
PM10
34 µg/m³
Ozone
11.7 µg/m³
Nitrogen dioxide
44.3 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
395 µg/m³
European AQI (separate scale)
2