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Central Bohemia, Czechia

Velký Borek · Air quality

Monday, Nov 2 · Europe/Prague

Velký Borek air quality

US air quality index

54

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
7 µg/m³
PM2.5
8 µg/m³
PM10
8 µg/m³
Ozone
43 µg/m³
Nitrogen dioxide
3 µg/m³
Sulfur dioxide
1.7 µg/m³
Carbon monoxide
143.7 µg/m³
European AQI (separate scale)
2