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California, United States

Homeland · Air quality

Thursday, Nov 12 · America/Los Angeles

Homeland air quality

US air quality index

48

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
13 µg/m³
PM2.5
14.7 µg/m³
PM10
19 µg/m³
Ozone
51.5 µg/m³
Nitrogen dioxide
20.7 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
256.7 µg/m³
European AQI (separate scale)
2