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Primary air pollutant in the West Covina area:
PM2.5 - 34 Good
Enjoy your outdoor activities.
Other Pollutants:
PM10 - 17 Good
OZONE - 9 Good
Primary Pollutant: OZONE - 58 Moderate
Secondary Pollutant: PM2.5 - 39 Good
Secondary Pollutant: PM10 - 31 Good
Secondary Pollutant: CO - 7 Good
Secondary Pollutant: NO2 - 23 Good
Primary Pollutant: OZONE - 84 Moderate
Secondary Pollutant: PM2.5 - 44 Good
Secondary Pollutant: PM10 - 29 Good
Secondary Pollutant: CO - 7 Good
Secondary Pollutant: NO2 - 24 Good