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AQI Forecast by County
Tuesday, August 14
Tue Wed
El Dorado
105
112
Placer
115
119
Sacramento
90
100
Yolo-Solano
61
67

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
210
Ozone
Thu. 8/2
147
Ozone
Thu. 8/9
182
Ozone
Thu. 8/9
210
Ozone
Thu. 8/2
204
Ozone
Thu. 8/2
VeryUnhealthy 3 0 0 3 1
Unhealthy 8 0 2 7 7
UnhealthySG 22 2 11 17 14
Moderate 40 27 37 43 42
Good 32 75 54 35 40

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality