Skip to weather
weather.ws

Illinois, United States

South Elgin · Air quality

Sunday, Nov 1 · America/Chicago

South Elgin air quality

US air quality index

55

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
8 µg/m³
PM2.5
9.6 µg/m³
PM10
9 µg/m³
Ozone
35.7 µg/m³
Nitrogen dioxide
16.3 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
149 µg/m³
European AQI (separate scale)
2