TY - RPRT TI - Global Estimates of Average Ground-Level Fine Particulate Matter Concentrations from Satellite-Based Aerosol Optical Depth AU - Van Donkelaar, A. AU - Martin, R. V. AU - Brauer, M. AU - Kahn, R. AU - Levy, R. AU - Verduzco, C. AU - Villeneuve, P. PY - 2010 UR - https://ntrs.nasa.gov/citations/20110007790 ID - 20110007790 ER -