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California, United States

Waterford · Air quality

Monday, Nov 2 · America/Los Angeles

Waterford air quality

US air quality index

44

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
12.3 µg/m³
PM10
23 µg/m³
Ozone
15.9 µg/m³
Nitrogen dioxide
28.3 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
221 µg/m³
European AQI (separate scale)
2