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AQI Forecast by County
Thursday, May 25
Thu Fri
El Dorado
49
50
Placer
51
51
Sacramento
46
47
Yolo-Solano
42
42

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
129
Ozone
Tue. 5/23
100
Ozone
Tue. 5/23
129
Ozone
Tue. 5/23
115
Ozone
Tue. 5/23
115
Ozone
Tue. 5/23
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 3 0 2 1 3
Moderate 8 5 6 10 7
Good 12 18 15 12 13

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality