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AQI Forecast by County
Thursday, June 08
Thu Fri
El Dorado
49
51
Placer
51
54
Sacramento
48
50
Yolo-Solano
43
44

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 .070 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
112
Ozone
Wed. 5/17
64
Ozone
Sun. 6/4
97
Ozone
Sun. 6/4
112
Ozone
Wed. 5/17
84
Ozone
Sat. 6/3
Hazardous 0 0 0 0 0
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 1 0 0 1 0
Moderate 12 4 10 11 8
Good 19 25 22 20 21

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality