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AQI Forecast by County
Monday, May 16
Mon Tue
El Dorado
51
71
Placer
51
74
Sacramento
46
67
Yolo-Solano
40
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
74
Ozone
Wed. 5/4
47
Ozone
Wed. 5/4
54
Ozone
Wed. 5/4
74
Ozone
Wed. 5/4
58
Ozone
Wed. 5/4
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 0 0 0 0 0
Moderate 1 0 1 1 1
Good 13 14 13 13 12

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality