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  4. San Diego County
  5. National City

National City

San Diego County, California

2025-03-11 13:00
AQI (UK)
Low
Pollutants
PM10
μg/m³
39
PM2.5
μg/m³
21.4
Weather
  • ℃
  • ℉
12℃
79%
26 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (UK)
  • PM10
  • PM2.5
Data Sources
http://www.airnow.gov/

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