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Primary air pollutant in the Diamond Bar area:
OZONE - 8 Good
Enjoy your outdoor activities.
Primary Pollutant: NO2 - 40 Good
Secondary Pollutant: PM2.5 - 33 Good
Secondary Pollutant: PM10 - 35 Good
Secondary Pollutant: OZONE - 39 Good
Secondary Pollutant: CO - 7 Good
Primary Pollutant: PM2.5 - 56 Moderate
Secondary Pollutant: PM10 - 38 Good
Secondary Pollutant: OZONE - 36 Good
Secondary Pollutant: CO - 9 Good
Secondary Pollutant: NO2 - 42 Good