tips
Forecast By County
Tuesday, July 22
Tue Wed
El Dorado
46
67
Placer
44
64
Sacramento
46
71
Yolo-Solano
38
49

The below map is a 1-hour snapshot. Click to view all hours recorded since midnight.
Current map

Spare The Air Days
2014
Spare The Air Days:
1

Current Conditions: Ozone

AQI Look-up Table for Ozone concentrations
July 22, 2014 4 p.m. (PDT)
Site Name Current Ozone AQI Max Ozone AQI (PST)
Auburn   51 51 at 3 p.m.
Colfax   38 38 at 3 p.m.
Cool (Seasonal)   44 44 at 3 p.m.
Davis - UCD Campus   28 31 at 1 p.m.
Elk Grove   30 30 at 3 p.m.
Folsom   40 40 at 3 p.m.
Grass Valley  *   42 42 at 1 p.m.
Lincoln   42 42 at 3 p.m.
North Highlands   37 37 at 3 p.m.
Placerville   37 37 at 2 p.m.
Roseville - N.Sunrise/Douglas   37 37 at 2 p.m.
Sacramento - Del Paso Manor   34 34 at 3 p.m.
Sacramento - T Street   31 31 at 2 p.m.
Sloughhouse   33 33 at 3 p.m.
Vacaville   28 28 at 2 p.m.
Woodland   31 33 at 2 p.m.
Yuba City   32 32 at 2 p.m.

* The Sacramento region is designated as a severe nonattainment area for the 1997 federal 8-hour ozone standard with an attainment deadline of June 2019. This federal nonattainment area includes all of Sacramento and Yolo counties and portions of El Dorado, Placer, Sutter and Solano counties. It does not include Nevada County (Grass Valley), which has its own nonattainment area for outreach, planning and regulatory purposes. Nor does it include Yuba City, which is outside of this federal boundary.


AQI Chart - EnglishAQI en español
AQI Look-up Table for PM2.5 concentrations
July 22, 2014 4 p.m. (PDT)
Site Name Current PM2.5 AQI Max PM2.5 AQI (PST)
Auburn   17 19 at 12 a.m.
Colfax   20 37 at 1 p.m.
Davis - UCD Campus   33 33 at 3 p.m.
Elk Grove   29 33 at 2 p.m.
Folsom   13 13 at 2 p.m.
Grass Valley  *   Missing Missing
Lincoln   25 29 at 2 p.m.
Rio Vista   23 23 at 4 p.m.
Roseville - N.Sunrise/Douglas   20 23 at 12 a.m.
Sacramento - Del Paso Manor   5 6 at 2 p.m.
Sacramento - T Street   14 13 at 3 p.m.
Sloughhouse   15 15 at 4 p.m.
Vacaville   0 0 at 3 p.m.
Woodland   Missing Missing

AQI Chart - EnglishAQI en español

There are 18 ground-level ozone monitoring sites throughout the federal nonattainment area.

Monitoring Sites - Operated By Local Air Districts
1. Woodland GP
2. Vacaville-Elmira G
3. Auburn GP
4. Colfax GPM
5. Folsom GMP
6. North Highlands GP
7. Elk Grove-Bruceville GPM
8. Del Paso Manor GPM
9. El Camino & Watt GP
10. Stockton Blvd. P
11. Sloughhouse GM
12. Goldenland Ct. GPM
Monitoring Sites - Operated By ARB
13. Walnut Grove GM
14. Davis GPM
15. Roseville GPTM
16. Cool GM
17. Placerville GPM
18. Downtown Sacramento 13th and T GPAM
Legend
G Gaseous Monitoring
P Particulate Monitoring
T Toxics Sampling
A Acid Deposition Sampling
M Meteorological Monitoring