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AQI Forecast by County
Wednesday, August 12
Wed Thu
El Dorado
71
84
Placer
67
84
Sacramento
64
97
Yolo-Solano
47
50

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
108
Ozone
Mon. 8/10
64
Ozone
Fri. 5/8
101
Ozone
Thu. 7/9
108
Ozone
Mon. 8/10
101
Ozone
Thu. 7/9
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 5 0 2 4 1
Moderate 61 5 38 56 48
Good 36 97 62 42 53

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality