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Maryland, United States

Langley Park · Air quality

Thursday, Oct 29 · America/New York

Langley Park air quality

US air quality index

35

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
9 µg/m³
PM2.5
5.7 µg/m³
PM10
16 µg/m³
Ozone
11.2 µg/m³
Nitrogen dioxide
22.3 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
243.3 µg/m³
European AQI (separate scale)
1