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North Carolina, United States

East Spencer · Air quality

Friday, Nov 13 · America/New York

East Spencer air quality

US air quality index

23

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
1 µg/m³
PM2.5
4.6 µg/m³
PM10
2 µg/m³
Ozone
35.4 µg/m³
Nitrogen dioxide
2.7 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
149 µg/m³
European AQI (separate scale)
1