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Primary air pollutant in the West Covina area:
OZONE - 25 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 17 Good
PM10 - 13 Good
Primary Pollutant: OZONE - 43 Good
Secondary Pollutant: PM2.5 - 28 Good
Secondary Pollutant: PM10 - 16 Good
Secondary Pollutant: CO - 3 Good
Secondary Pollutant: NO2 - 17 Good
Primary Pollutant: OZONE - 47 Good
Secondary Pollutant: PM2.5 - 28 Good
Secondary Pollutant: PM10 - 19 Good
Secondary Pollutant: CO - 3 Good
Secondary Pollutant: NO2 - 13 Good