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Primary air pollutant in the Roseville area:
PM2.5 - 42 Good
Enjoy your outdoor activities.
Other Pollutants:
OZONE - 37 Good
PM10 - 16 Good
Sunday, light north-northwesterly winds will limit pollutant dispersion in the Sacramento region. In addition, an evening temperature inversion will trap pollutants at the surface. Therefore, particle levels will be low- to mid-Moderate. Monday, a weak cold front will impact northern California, enhancing atmospheric mixing. However, light onshore winds will continue to hinder dispersion, while another evening temperature inversion will confine pollutants near the ground. These conditions will keep particle levels low- to mid-Moderate. Tuesday, an upper-level trough of low pressure passing over the region will aid vertical mixing. At the surface, moderate to gusty onshore winds and rain showers will disperse pollutants. Thus, particle levels will improve to high-Good to low-Moderate.
Primary Pollutant: PM2.5 - 44 Good
Primary Pollutant: PM2.5 - 50 Good
Primary Pollutant: PM2.5 - 33 Good
Primary Pollutant: PM2.5 - 28 Good
Primary Pollutant: PM2.5 - 28 Good
Primary Pollutant: PM2.5 - 22 Good