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Oregon, United States

Redwood · Air quality

Friday, Nov 6 · America/Los Angeles

Redwood air quality

US air quality index

30

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
7 µg/m³
PM2.5
29.2 µg/m³
PM10
9 µg/m³
Ozone
24.7 µg/m³
Nitrogen dioxide
10 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
185 µg/m³
European AQI (separate scale)
1