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Primary air pollutant in the Placentia area:
OZONE - 44 Good
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Primary Pollutant: OZONE - 74 Moderate
Secondary Pollutant: PM2.5 - 55 Moderate
Secondary Pollutant: PM10 - 35 Good
Secondary Pollutant: CO - 6 Good
Secondary Pollutant: NO2 - 28 Good
Primary Pollutant: OZONE - 64 Moderate
Secondary Pollutant: PM2.5 - 55 Moderate
Secondary Pollutant: PM10 - 40 Good
Secondary Pollutant: CO - 4 Good
Secondary Pollutant: NO2 - 16 Good