CMAQ (air) modeling output for the Greater Houston Area (15 counties)

CMAQ refers to the downscaling input files from the Community Multiscale Air Quality (CMAQ) model. Text files for the 12 km grid estimates for Ozone (O3) and Particulate Matter (PM) 2.5 were downloaded from the EPA website. This extract includes grids with centroids within the 15-County area boundaries. There is one file per year, containing one record per grid and date. Each record includes a unique grid ID, both the Ozone and PM 2.5 values, as well as 2000 and 2010 census block IDs and ZCTAs.