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Maryland, United States

Jonestown · Air quality

Wednesday, Nov 4 · America/New York

Jonestown 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
6 µg/m³
PM2.5
1.7 µg/m³
PM10
13 µg/m³
Ozone
33.2 µg/m³
Nitrogen dioxide
10 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
160 µg/m³
European AQI (separate scale)
1