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Pennsylvania, United States

Monroeville · Air quality

Wednesday, Oct 21 · America/New York

Monroeville air quality

US air quality index

42

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
6 µg/m³
PM2.5
9.8 µg/m³
PM10
7 µg/m³
Ozone
2.4 µg/m³
Nitrogen dioxide
11.3 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
202.3 µg/m³
European AQI (separate scale)
2