With support from NASA, the Holloway Group at SAGE has developed a set of user-friendly dataset to support wider utilization of remote sensing data for air quality and health. This growing inventory of data includes daily and annual-average gridded data, as well as data in shapefile format for use in GIS platforms, including the EPA’s EJSCREEN platform. We also provide a number of python scripts for viewing and extracting data.
If you publish or present any of these data, please include one of the following acknowledgements or an appropriate equivalent:
We wish to thank the University of Wisconsin-Madison for these data. TROPOMI NO2 data have been processed to the {12km, 4km, or 1km} grid using the Wisconsin Horizontal Interpolation Program for Satellites (WHIPS; Harkey et al., 2015, 2021; Penn & Holloway, 2020), screening out any pixels with a quality flag less than 0.75. WHIPS was developed by Tracey Holloway, Jacob Oberman, Peidong Wang, Eliot Kim, and other students and staff, with funding from the NASA Air Quality Applied Science Team (AQAST), the NASA Health and Air Quality Applied Sciences Team (HAQAST), and the State of Texas Air Quality Research Program (AQRP).
We wish to thank the University of Wisconsin-Madison for these data. OMI NO2 data have been processed to the 12km grid using the Wisconsin Horizontal Interpolation Program for Satellites (WHIPS; Harkey et al., 2015, 2021; Penn & Holloway, 2020), screening out any pixels with a solar zenith angle greater than 85 degrees, cloud fraction greater than 30%, or were affected by row anomalies. WHIPS was developed by Tracey Holloway, Jacob Oberman, Peidong Wang, Eliot Kim, and other students and staff, with funding from the NASA Air Quality Applied Science Team (AQAST), the NASA Health and Air Quality Applied Sciences Team (HAQAST), and the State of Texas Air Quality Research Program (AQRP).
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OMI NO2 (January 2006–May 2020)
This dataset contains daily gridded DOMINO NO2 data, zipped into monthly files. These data were generated from Level-2 satellite data (on swaths) and gridded to a 12 km x 12 km horizontal resolution over the continental United States using the Wisconsin Horizontal Interpolation Program for Satellites (WHIPS) for ease of comparison with photochemical grid model output.
Download Monthly Gridded netCDF Files
Filter by year
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
TROPOMI NO2 (January 2019–)
This dataset includes daily gridded TROPOMI NO2 data, zipped into monthly files, as well as data in shapefile format. These data were generated from Level-2 satellite data (on swaths) and gridded to a 12km x 12km (daily and annual), 4km x 4km (daily and annual), and 1km x 1km (annual) horizontal resolution over the continental United States using the Wisconsin Horizontal Interpolation Program for Satellites (WHIPS) for ease of comparison with photochemical grid model output.
Download Annual Files
Gridded netCDF
Gridded Shapefiles
Download Monthly Gridded netCDF Files
Filter by year
2023
2022
2021
2020
Shapefiles of NO2 Air Pollution
California
New York
Wisconsin
County Level
The links below can be directly added to EJ SCREEN under add maps—>search for maps–>add map services.
Wisconsin
California
New York
County Level
The units for all files are x10^15 molecules/cm2