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AQI Forecast by County
Friday, December 09
Fri Sat
Placer
38
21
Sacramento
53
33
Yolo-Solano
50
25

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
150
Ozone
Tue. 9/6
101
Ozone
Thu. 10/6
150
Ozone
Tue. 9/6
133
Ozone
Fri. 8/19
129
Ozone
Wed. 8/17
Hazardous 0 0 0 0 0
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 22 2 8 14 12
Moderate 85 33 69 85 77
Good 76 148 106 84 88

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality