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Lisbon, Portugal

Parque das Nações · Air quality

Sunday, Nov 15 · Europe/Lisbon

Parque das Nações 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
7 µg/m³
PM2.5
12 µg/m³
PM10
17 µg/m³
Ozone
43.3 µg/m³
Nitrogen dioxide
10 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
124.7 µg/m³
European AQI (separate scale)
1