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AQI Forecast by County
Monday, June 21
Mon Tue
El Dorado
71
58
Placer
80
61
Sacramento
58
51
Yolo-Solano
45
43

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
136
Ozone
Sat. 6/19
87
Ozone
Fri. 6/18
133
Ozone
Fri. 6/18
136
Ozone
Sat. 6/19
112
Ozone
Sat. 6/19
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 5 0 3 4 2
Moderate 20 6 16 20 14
Good 25 44 31 26 34

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality