tips

AQI Forecast by County
Wednesday, June 19
Wed Thu
El Dorado
97
74
Placer
100
77
Sacramento
93
67
Yolo-Solano
67
50

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
122
Ozone
Wed. 6/12
90
Ozone
Tue. 6/11
122
Ozone
Wed. 6/12
97
Ozone
Wed. 6/5
90
Ozone
Wed. 6/5
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 3 0 3 0 0
Moderate 20 12 15 20 17
Good 25 36 30 28 31

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality