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Forecast By County
Friday, August 01
Fri Sat
El Dorado
116
119
Placer
116
119
Sacramento
116
116
Yolo-Solano
84
84

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:
2

Current Conditions: Ozone

AQI Look-up Table for Ozone concentrations
August 1, 2014 5 p.m. (PDT)
Site Name Current Ozone AQI Max Ozone AQI (PST)
Auburn   47 74 at 10 a.m.
Colfax   39 47 at 10 a.m.
Cool (Seasonal)   77 87 at 12 p.m.
Davis - UCD Campus   44 48 at 1 p.m.
Elk Grove   43 44 at 10 a.m.
Folsom   77 106 at 2 p.m.
Grass Valley  *   42 50 at 1 a.m.
Lincoln   35 51 at 10 a.m.
North Highlands   45 80 at 1 p.m.
Placerville   46 48 at 9 a.m.
Roseville - N.Sunrise/Douglas   71 97 at 1 p.m.
Sacramento - Del Paso Manor   50 93 at 1 p.m.
Sacramento - T Street   47 47 at 2 p.m.
Sloughhouse   61 71 at 2 p.m.
Vacaville   42 42 at 2 p.m.
Woodland   51 51 at 3 p.m.
Yuba City   42 50 at 1 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
August 1, 2014 5 p.m. (PDT)
Site Name Current PM2.5 AQI Max PM2.5 AQI (PST)
Auburn   36 55 at 1 p.m.
Colfax   13 33 at 11 a.m.
Davis - UCD Campus   59 59 at 3 p.m.
Elk Grove   60 61 at 12 p.m.
Folsom   28 37 at 11 a.m.
Grass Valley  *   Missing Missing
Lincoln   40 45 at 12 p.m.
Rio Vista   33 53 at 11 a.m.
Roseville - N.Sunrise/Douglas   52 53 at 1 p.m.
Sacramento - Del Paso Manor   40 42 at 1 p.m.
Sacramento - T Street   55 55 at 12 p.m.
Sloughhouse   47 46 at 4 p.m.
Vacaville   27 35 at 12 p.m.
Woodland   17 17 at 4 p.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