tips

AQI Forecast by County
Monday, June 25
Mon Tue
El Dorado
67
100
Placer
64
97
Sacramento
58
100
Yolo-Solano
50
74

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
Sat. 6/2
84
Ozone
Wed. 6/13
108
Ozone
Sat. 6/2
122
Ozone
Sat. 6/2
101
Ozone
Thu. 6/21
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 4 0 1 3 1
Moderate 23 7 13 22 19
Good 28 46 40 30 34

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality