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Primary air pollutant in the Cupertino area:
PM2.5 - 71 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Primary air pollutant in the Cupertino area:
OZONE - 27 Good
Enjoy your outdoor activities.
Other Pollutants:
Primary Pollutant: OZONE - 71 Moderate
Primary Pollutant: OZONE - 104 Unhealthy for Sensitive Groups
Primary Pollutant: OZONE - 0 Moderate
Primary Pollutant: OZONE - 0 Moderate
Primary Pollutant: OZONE - 0 Moderate
Primary Pollutant: OZONE - 0 Good