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Primary air pollutant in the La Crescenta Montrose area:
PM2.5 - 69 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:
OZONE - 23 Good
Primary Pollutant: OZONE - 115 Unhealthy for Sensitive Groups
Secondary Pollutant: PM2.5 - 64 Moderate
Secondary Pollutant: PM10 - 31 Good
Secondary Pollutant: CO - 7 Good
Secondary Pollutant: NO2 - 29 Good
Primary Pollutant: OZONE - 133 Unhealthy for Sensitive Groups
Secondary Pollutant: PM2.5 - 58 Moderate
Secondary Pollutant: PM10 - 34 Good
Secondary Pollutant: CO - 7 Good
Secondary Pollutant: NO2 - 31 Good