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AQI Forecast by County
Tuesday, June 27
Tue Wed
El Dorado
50
74
Placer
50
71
Sacramento
50
61
Yolo-Solano
44
51

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
Tue. 6/20
112
Ozone
Tue. 6/20
164
Ozone
Tue. 6/20
156
Ozone
Tue. 6/20
147
Ozone
Tue. 6/20
VeryUnhealthy 0 0 0 0 0
Unhealthy 1 0 1 1 0
UnhealthySG 10 1 5 3 11
Moderate 20 11 14 21 18
Good 25 44 36 31 27

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality