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Delaware, United States

Felton · Air quality

Sunday, Oct 25 · America/New York

Felton air quality

US air quality index

61

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
25 µg/m³
PM2.5
6.7 µg/m³
PM10
28 µg/m³
Ozone
15.7 µg/m³
Nitrogen dioxide
22.3 µg/m³
Sulfur dioxide
2.3 µg/m³
Carbon monoxide
266 µg/m³
European AQI (separate scale)
2