Forecast By County
Friday, January 30
Fri Sat
Placer
50
46
Sacramento
59
50
Yolo-Solano
53
38

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

Current Conditions: Ozone

AQI Look-up Table for Ozone concentrations
January 30, 2015 5 a.m. (PST)
Site Name Current Ozone AQI Max Ozone AQI (PST)
Auburn   11 16 at 3 a.m.
Colfax   14 15 at 3 a.m.
Davis - UCD Campus   3 3 at 4 a.m.
Elk Grove   4 5 at 2 a.m.
Folsom   15 17 at 1 a.m.
Grass Valley  *   32 35 at 1 a.m.
Lincoln   5 6 at 2 a.m.
North Highlands   4 4 at 5 a.m.
Placerville   22 23 at 2 a.m.
Roseville - N.Sunrise/Douglas   10 12 at 1 a.m.
Sacramento - Del Paso Manor   1 1 at 5 a.m.
Sacramento - T Street   3 3 at 4 a.m.
Sloughhouse   12 12 at 5 a.m.
Vacaville   4 10 at 1 a.m.
Woodland   3 3 at 5 a.m.
Yuba City   3 4 at 12 a.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
January 30, 2015 5 a.m. (PST)
Site Name Current PM2.5 AQI Max PM2.5 AQI (PST)
Auburn   23 37 at 1 a.m.
Colfax   22 40 at 1 a.m.
Davis - UCD Campus   23 48 at 12 a.m.
Elk Grove   69 84 at 2 a.m.
Folsom   43 52 at 1 a.m.
Grass Valley  *   22 27 at 4 a.m.
Lincoln   64 80 at 2 a.m.
Rio Vista   64 70 at 1 a.m.
Roseville - N.Sunrise/Douglas   50 69 at 1 a.m.
Sacramento - Del Paso Manor   65 79 at 12 a.m.
Sacramento - T Street   64 78 at 2 a.m.
Sloughhouse   55 59 at 12 a.m.
Vacaville   37 42 at 12 a.m.
Woodland   57 68 at 1 a.m.

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