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Kentucky, United States

Crab Orchard · Air quality

Sunday, Nov 1 · America/New York

Crab Orchard air quality

US air quality index

26

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
3 µg/m³
PM2.5
6.9 µg/m³
PM10
5 µg/m³
Ozone
29 µg/m³
Nitrogen dioxide
2 µg/m³
Sulfur dioxide
0 µg/m³
Carbon monoxide
124 µg/m³
European AQI (separate scale)
1