Skip to weather
weather.ws

Vratsa, Bulgaria

Byala Slatina · Air quality

Saturday, Nov 7 · Europe/Sofia

Byala Slatina air quality

US air quality index

64

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
24.3 µg/m³
Nitrogen dioxide
10.3 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
286.7 µg/m³
European AQI (separate scale)
2