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New York, United States

Athens · Air quality

Sunday, Oct 25 · America/New York

Athens air quality

US air quality index

33

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
4 µg/m³
PM2.5
5.9 µg/m³
PM10
4 µg/m³
Ozone
32 µg/m³
Nitrogen dioxide
3 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
161 µg/m³
European AQI (separate scale)
1