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AQI Forecast by County
Sunday, June 04
Sun Mon
El Dorado
101
64
Placer
101
64
Sacramento
93
50
Yolo-Solano
71
44

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 .070 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
Wed. 5/17
54
Ozone
Mon. 5/22
90
Ozone
Wed. 5/17
112
Ozone
Wed. 5/17
80
Ozone
Wed. 5/17
Hazardous 0 0 0 0 0
VeryUnhealthy 0 0 0 0 0
Unhealthy 0 0 0 0 0
UnhealthySG 1 0 0 1 0
Moderate 9 2 8 8 5
Good 18 23 20 19 20

Preliminary data, subject to revision or deletion.

View 2002-2007 historical air quality