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Catalonia, Spain

El Masnou · Air quality

Thursday, Nov 5 · Europe/Madrid

El Masnou air quality

US air quality index

51

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
21 µg/m³
PM2.5
23 µg/m³
PM10
24 µg/m³
Ozone
20 µg/m³
Nitrogen dioxide
24 µg/m³
Sulfur dioxide
4 µg/m³
Carbon monoxide
247 µg/m³
European AQI (separate scale)
2