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AQI Forecast by County
Saturday, August 24
Sat Sun
El Dorado
87
105
Placer
90
108
Sacramento
80
105
Yolo-Solano
51
71

Air Quality Map
The map below is a 1-hour snapshot. Click to view all hours recorded since midnight.
Current map


Air Quality This Year

Number of Days in Each AQI Category

AQI numbers calculated according to the latest federal ozone health standard of .075 parts per million averaged over 8 hours.
For pre-2008 values based on the prior National Ambient Air Quality Standard, click the link at the bottom of the page.
     Region    Yolo-Solano Sacramento Placer El Dorado
Maximum AQI
140
Ozone
Fri. 8/16
97
Ozone
Sat. 7/27
140
Ozone
Fri. 8/16
136
Ozone
Fri. 8/16
108
Ozone
Tue. 8/6
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 11 0 6 6 3
Moderate 59 30 44 58 49
Good 44 84 64 50 62

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality