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Primary air pollutant in the Signal Hill area:
PM2.5 - 56 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:
PM10 - 29 Good
OZONE - 4 Good
Primary Pollutant: PM2.5 - 60 Moderate
Secondary Pollutant: PM10 - 30 Good
Secondary Pollutant: OZONE - 30 Good
Secondary Pollutant: CO - 14 Good
Secondary Pollutant: NO2 - 44 Good
Primary Pollutant: PM2.5 - 64 Moderate
Secondary Pollutant: PM10 - 21 Good
Secondary Pollutant: OZONE - 27 Good
Secondary Pollutant: CO - 13 Good
Secondary Pollutant: NO2 - 44 Good