Skip to weather
weather.ws

Pennsylvania, United States

Belmont · Air quality

Monday, Nov 2 · America/New York

Belmont air quality

US air quality index

54

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
23 µg/m³
PM2.5
15.2 µg/m³
PM10
24 µg/m³
Ozone
11.8 µg/m³
Nitrogen dioxide
49 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
320 µg/m³
European AQI (separate scale)
2