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Arkansas, United States

Hot Springs · Air quality

Tuesday, Nov 10 · America/Chicago

Hot Springs air quality

US air quality index

20

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
10 µg/m³
PM2.5
3.2 µg/m³
PM10
10 µg/m³
Ozone
29.5 µg/m³
Nitrogen dioxide
3 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
142 µg/m³
European AQI (separate scale)
1