Home > USA > California > San Bernardino County > Ontario
Primary air pollutant in the Ontario area:
PM2.5 - 54 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:
OZONE - 30 Good
PM10 - 29 Good
Primary Pollutant: PM2.5 - 44 Good
Secondary Pollutant: NO2 - 19 Good
Secondary Pollutant: OZONE - 44 Good
Secondary Pollutant: PM10 - 31 Good
Secondary Pollutant: CO - 7 Good
Primary Pollutant: PM2.5 - 53 Moderate
Secondary Pollutant: CO - 8 Good
Secondary Pollutant: PM10 - 35 Good
Secondary Pollutant: OZONE - 46 Good
Secondary Pollutant: NO2 - 31 Good