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Primary air pollutant in the Brea area:
OZONE - 0 Good
Enjoy your outdoor activities.
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: PM10 - 31 Good
Secondary Pollutant: OZONE - 32 Good
Secondary Pollutant: CO - 2 Good
Secondary Pollutant: NO2 - 19 Good
Primary Pollutant: PM2.5 - 53 Moderate
Secondary Pollutant: PM10 - 33 Good
Secondary Pollutant: OZONE - 47 Good
Secondary Pollutant: CO - 2 Good
Secondary Pollutant: NO2 - 15 Good