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Primary air pollutant in the Rowland Heights area:
OZONE - 43 Good
Enjoy your outdoor activities.
Primary Pollutant: OZONE - 51 Moderate
Secondary Pollutant: PM2.5 - 50 Good
Secondary Pollutant: PM10 - 39 Good
Secondary Pollutant: CO - 2 Good
Secondary Pollutant: NO2 - 10 Good
Primary Pollutant: OZONE - 71 Moderate
Secondary Pollutant: PM2.5 - 53 Moderate
Secondary Pollutant: PM10 - 43 Good
Secondary Pollutant: CO - 3 Good
Secondary Pollutant: NO2 - 19 Good