Atmospheric black carbon concentrations in North America from ~1850 to 2014
Tanveer Ahmed1,2, Sayantan Sarkar1, Vincent A Dutkiewicz1 and Liaquat Husain1, (1)Atmospheric Sciences Research Center,, SUNY Albany, Albany, NY, United States, (2)Hamon Research-Cottrell, Inc., Bridgewater, NJ, United States