Lary, David J., Fazlay S. Faruque, Nabin Malakar, Alex Moore, Bryan Roscoe, Zachary L. Adams, and York Eggelston. 2014. “Estimating the Global Abundance of Ground Level Presence of Particulate Matter (PM2.5)”. Geospatial Health 8 (3), S611-S630. https://doi.org/10.4081/gh.2014.292.