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AQI Forecast by County
Tuesday, August 03
Tue Wed
El Dorado
119
71
Placer
122
74
Sacramento
108
58
Yolo-Solano
67
41

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
164
Ozone
Thu. 7/8
87
Ozone
Fri. 6/18
164
Ozone
Thu. 7/8
140
Ozone
Fri. 7/23
133
Ozone
Fri. 7/23
VeryUnhealthy 0 0 0 0 0
Unhealthy 1 0 1 0 0
UnhealthySG 20 0 10 18 6
Moderate 43 11 32 45 41
Good 30 82 50 31 46

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality