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AQI Forecast by County
Thursday, July 19
Thu Fri
El Dorado
122
108
Placer
119
101
Sacramento
108
101
Yolo-Solano
67
61

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
147
Ozone
Thu. 7/12
87
Ozone
Wed. 7/18
129
Ozone
Wed. 7/18
136
Ozone
Thu. 7/12
147
Ozone
Thu. 7/12
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 13 0 4 10 7
Moderate 34 14 26 34 33
Good 32 64 49 35 39

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality