Forecast By County
Saturday, November 01
Sat Sun
Placer
42
33
Sacramento
42
33
Yolo-Solano
42
33

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

Current Conditions: PM2.5

AQI Look-up Table for Ozone concentrations
November 1, 2014 2 a.m. (PST)
Site Name Current Ozone AQI Max Ozone AQI (PST)
Auburn   26 26 at 1 a.m.
Colfax   21 21 at 1 a.m.
Cool (Seasonal)   29 29 at 12 a.m.
Davis - UCD Campus   8 10 at 12 a.m.
Elk Grove   17 17 at 1 a.m.
Folsom   24 28 at 12 a.m.
Grass Valley   30 30 at 1 a.m.
Lincoln   25 25 at 1 a.m.
North Highlands   19 21 at 12 a.m.
Placerville   24 24 at 1 a.m.
Roseville - N.Sunrise/Douglas   24 25 at 12 a.m.
Sacramento - T Street   14 17 at 12 a.m.
Sloughhouse   18 21 at 12 a.m.
Vacaville   9 9 at 1 a.m.
Woodland   10 10 at 1 a.m.
Yuba City   13 16 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
November 1, 2014 2 a.m. (PST)
Site Name Current PM2.5 AQI Max PM2.5 AQI (PST)
Auburn   Missing Missing
Colfax   Missing Missing
Davis - UCD Campus   28 31 at 12 a.m.
Elk Grove   11 10 at 2 a.m.
Folsom   8 8 at 12 a.m.
Grass Valley   20 20 at 12 a.m.
Lincoln   Missing Missing
Rio Vista   Missing Missing
Roseville - N.Sunrise/Douglas   33 33 at 2 a.m.
Sacramento - Del Paso Manor   16 16 at 2 a.m.
Sacramento - T Street   61 61 at 1 a.m.
Sloughhouse   8 8 at 2 a.m.
Vacaville   Missing Missing
Woodland   Missing Missing

AQI Chart - EnglishAQI en español

The real-time Particulate Matter (PM2.5) data displayed on this page is for public information reporting and forecasting only. Per state and federal regulations, it is not used for attainment determination purposes.

Compared to ground-level ozone programs, PM2.5 monitoring, forecasting and mapping is still in its infancy. Fine Particulate Matter, known as PM2.5, is a complex mixture that may contain soot, smoke, metals, nitrates, sulfates, dust, water and tire rubber. It can be directly emitted, as in smoke from a fire, or it can form in the atmosphere from reactions of gases such as nitrogen oxides.

Five (5) sites in Sacramento County:
  • Elk Grove
  • Folsom
  • Del Paso Manor (near Watt Ave. and El Camino Ave.)
  • Sloughhouse
  • T Street (13th & T in downtown Sacramento)
Two (2) sites in Yolo County:
  • Davis
  • Woodland
Two (2) sites in Solano County:
  • Rio Vista
  • Vacaville
Three (3) sites in Placer County:
  • Auburn
  • Lincoln
  • Roseville (N. Sunrise/Douglas Blvd.)
One (1) site in Nevada County:
  • Grass Valley