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Primary air pollutant in the Castaic area:
OZONE - 47 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 32 Good
Primary Pollutant: PM10 - 48 Good
Secondary Pollutant: PM2.5 - 17 Good
Secondary Pollutant: OZONE - 44 Good
Secondary Pollutant: CO - 3 Good
Secondary Pollutant: NO2 - 15 Good
Primary Pollutant: OZONE - 48 Good
Secondary Pollutant: PM2.5 - 39 Good
Secondary Pollutant: PM10 - 23 Good
Secondary Pollutant: CO - 4 Good
Secondary Pollutant: NO2 - 19 Good
Primary Pollutant: OZONE - 46 Good
Secondary Pollutant: PM2.5 - 44 Good
Secondary Pollutant: PM10 - 18 Good
Secondary Pollutant: CO - 3 Good
Secondary Pollutant: NO2 - 13 Good