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Primary air pollutant in the Placentia area:
PM2.5 - 64 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Other Pollutants:
PM10 - 27 Good
OZONE - 31 Good
Primary Pollutant: PM2.5 - 64 Moderate
Secondary Pollutant: PM10 - 38 Good
Secondary Pollutant: OZONE - 64 Moderate
Secondary Pollutant: CO - 2 Good
Secondary Pollutant: NO2 - 20 Good
Primary Pollutant: OZONE - 97 Moderate
Secondary Pollutant: PM2.5 - 69 Moderate
Secondary Pollutant: PM10 - 49 Good
Secondary Pollutant: CO - 4 Good
Secondary Pollutant: NO2 - 21 Good