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Primary air pollutant in the Simi Valley area:
PM2.5 - 54 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 - 31 Good
PM10 - 19 Good
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: OZONE - 44 Good
Secondary Pollutant: PM10 - 24 Good
Primary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: OZONE - 42 Good
Secondary Pollutant: PM10 - 21 Good
Primary Pollutant: PM2.5 - 44 Good
Secondary Pollutant: OZONE - 37 Good
Secondary Pollutant: PM10 - 19 Good
Primary Pollutant: OZONE - 39 Good
Secondary Pollutant: PM2.5 - 39 Good
Secondary Pollutant: PM10 - 19 Good
Primary Pollutant: PM2.5 - 44 Good
Secondary Pollutant: OZONE - 42 Good
Secondary Pollutant: PM10 - 20 Good
Primary Pollutant: PM2.5 - 45 Good
Secondary Pollutant: OZONE - 43 Good
Secondary Pollutant: PM10 - 21 Good