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AQI Forecast by County
Wednesday, May 24
Wed Thu
El Dorado
101
67
Placer
101
67
Sacramento
97
67
Yolo-Solano
58
49

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
112
Ozone
Mon. 5/22
87
Ozone
Mon. 5/22
105
Ozone
Mon. 5/22
93
Ozone
Mon. 5/22
112
Ozone
Mon. 5/22
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 2 0 1 0 2
Moderate 8 4 6 10 7
Good 12 18 15 12 13

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality