Dataset associated with "Outdoor air pollution in India is not only an urban problem"

The AOD from three separate satellite instruments: (a) the MODIS instrument aboard Terra satellite; (b) the MODIS instrument aboard the Aqua satellite; and (c) the MISR instrument aboard the Aqua satellite were used. We used the GEOS-Chem model (version 12.0.3) at 0.25 degrees x 0.3125 degrees resolution to calculate the ratio of daily simulated surface PM2.5 to AOD. Using the relationship given by Liu et al. (see README.pdf for reference), the satellite-derived daily PM2.5 was calculated for days when there was a successful satellite AOD retrieval. The daily values were averaged to calculate the satellite-derived annual mean surface PM2.5.