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AQI Forecast by County
Friday, May 24
Fri Sat
El Dorado
39
39
Placer
38
38
Sacramento
38
37
Yolo-Solano
36
36

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
97
Ozone
Sat. 5/4
64
Ozone
Fri. 5/3
90
Ozone
Fri. 5/3
97
Ozone
Sat. 5/4
84
Ozone
Fri. 5/3
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 0 0 0 0 0
Moderate 8 3 5 8 6
Good 14 19 17 14 16

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality