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Pennsylvania, United States

Masontown · Air quality

Tuesday, Oct 27 · America/New York

Masontown air quality

US air quality index

77

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
37 µg/m³
PM2.5
5.3 µg/m³
PM10
38 µg/m³
Ozone
33.1 µg/m³
Nitrogen dioxide
20 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
258 µg/m³
European AQI (separate scale)
3