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Primary air pollutant in the Diamond Bar area:
OZONE - 3 Good
Enjoy your outdoor activities.
Primary Pollutant: NO2 - 37 Good
Secondary Pollutant: PM2.5 - 33 Good
Secondary Pollutant: PM10 - 27 Good
Secondary Pollutant: OZONE - 33 Good
Secondary Pollutant: CO - 10 Good
Primary Pollutant: PM2.5 - 55 Moderate
Secondary Pollutant: PM10 - 24 Good
Secondary Pollutant: OZONE - 30 Good
Secondary Pollutant: CO - 10 Good
Secondary Pollutant: NO2 - 37 Good