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California, United States

Saratoga · Air quality

Friday, Nov 6 · America/Los Angeles

Saratoga air quality

US air quality index

46

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
17 µg/m³
PM2.5
4.1 µg/m³
PM10
22 µg/m³
Ozone
21 µg/m³
Nitrogen dioxide
31 µg/m³
Sulfur dioxide
1.3 µg/m³
Carbon monoxide
228.7 µg/m³
European AQI (separate scale)
2