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Primary air pollutant in the Grizzly Flats area:
OZONE - 21 Good
Enjoy your outdoor activities.
Thursday and Friday, as a trough of low pressure aloft gradually moves across northern California, low-level mixing will be enhanced. In addition, high temperatures in the 70s and partly cloudy skies will limit ozone development each day. Therefore, ozone levels will be Good on both days. Saturday, moderate onshore surface winds will aid pollutant dispersion as another trough of low pressure aloft traverses the region. However, increasing sunshine and temperatures warming into the mid-80s will promote ozone formation. Thus, ozone levels will be low-Moderate.
Primary Pollutant: OZONE - 39 Good
Primary Pollutant: OZONE - 41 Good
Primary Pollutant: OZONE - 48 Good
Primary Pollutant: OZONE - 51 Moderate
Primary Pollutant: OZONE - 58 Moderate
Primary Pollutant: OZONE - 74 Moderate