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Maryland, United States

Loch Raven · Air quality

Saturday, Nov 14 · America/New York

Loch Raven air quality

US air quality index

16

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
2 µg/m³
PM2.5
1.9 µg/m³
PM10
2 µg/m³
Ozone
23.3 µg/m³
Nitrogen dioxide
4.3 µg/m³
Sulfur dioxide
0.3 µg/m³
Carbon monoxide
133.7 µg/m³
European AQI (separate scale)
1