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Primary air pollutant in the Covina area:
PM2.5 - 90 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Primary air pollutant in the Covina area:
OZONE - 9 Good
Enjoy your outdoor activities.
Other Pollutants:
PM10 - 40 Good
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: PM10 - 20 Good
Secondary Pollutant: OZONE - 34 Good
Secondary Pollutant: CO - 8 Good
Secondary Pollutant: NO2 - 37 Good
Primary Pollutant: PM2.5 - 66 Moderate
Secondary Pollutant: PM10 - 19 Good
Secondary Pollutant: OZONE - 38 Good
Secondary Pollutant: CO - 8 Good
Secondary Pollutant: NO2 - 29 Good