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Primary air pollutant in the Placentia area:
OZONE - 7 Good
Enjoy your outdoor activities.
Primary Pollutant: PM2.5 - 77 Moderate
Secondary Pollutant: PM10 - 46 Good
Secondary Pollutant: OZONE - 27 Good
Secondary Pollutant: CO - 10 Good
Secondary Pollutant: NO2 - 42 Good
Primary Pollutant: PM2.5 - 94 Moderate
Secondary Pollutant: PM10 - 50 Good
Secondary Pollutant: OZONE - 27 Good
Secondary Pollutant: CO - 11 Good
Secondary Pollutant: NO2 - 40 Good