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***** ARCHIVED DATA *****

Fused Discrete Air Quality Surfaces

You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.

Remote Sensing
Information Gateway (RSIG)

Users wanting an automated way to temporally and/or spatially subset these data should go to the Remote Sensing Information Gateway (RSIG) website and follow the instructions to use the RSIG application.


Ozone (O3) and Fine Particulate (PM2.5) Surfaces

  • Date
  • Longitude
  • Latitude
  • CMAQ Column
  • CMAQ Row
  • Prediction of Average Pollutant Concentration for the CMAQ grid cell - either PM2.5_pred (ug/m3) or O3_pred (ppb)
  • Standard Error of Prediction - either PM2.5_stdd or O3_std

The National Center for Environmental Health provided resources to help support the development of the O3 and PM2.5 predictive surfaces through its Environmental Public Health Tracking system.

Air Quality HBMetadataAir_0911 (PDF) (6 pp, 103 KB)

          Download Data Files

        Download Data Files
  HBO3Surface_12km_2008_1012.zip (zip, 607MB)   HBPM2.5 Surface_12km_2008_1011.zip (zip, 630MB)
  HBO3Surface_12km_2007_1011.zip (zip, 606MB)   HBPM2.5 Surface_12km_2007_1017.zip (zip, 628MB)
  HBO3Surface_12km_2006_0909.zip (zip, 401MB)   HBPM2.5 Surface_12km_2006_0909.zip (zip, 413MB)
  HBO3Surface_12km_2005_0909.zip (zip, 401MB)   HBPM2.5 Surface_12km_2005_0909.zip (zip, 414MB)
  HBO3Surface_12km_2004_0909.zip (zip, 402MB)   HBPM2.5 Surface_12km_2004_0909.zip (zip, 415MB)
  HBO3Surface_12km_2003_0109.zip (zip, 392MB)   HBPM2.5 Surface_12km_2003_0909.zip (zip, 414MB)
  HBO3Surface_12km_2002_0109.zip (zip, 393MB)   HBPM2.5 Surface_12km_2002_0909.zip (zip, 414MB)
  HBO3Surface_12km_2001_0109.zip (zip, 236MB)   HBPM2.5 Surface_12km_2001_0909.zip (zip, 245MB)

DISCLAIMER: Although these data have been processed successfully on a computer system at the Environmental Protection Agency, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The U.S. Environmental Protection Agency shall not be held liable for improper or incorrect use of the data described and/or contained herein.

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