Incomplete Sulfate Aerosol Neutralization Despite Excess Ammonia in the Eastern US: A Possible Role of Organic Aerosol

Rachel Faye Silvern1, Daniel J. Jacob2,3, Patrick S Kim2, Eloise Ann Marais4 and Jay Robert Turner5, (1)Harvard University, Cambridge, MA, United States, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (3)Harvard University, School of Engineering and Applied Sciences, Cambridge, United States, (4)Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States, (5)Washington University in St. Louis, Department of Energy, Environmental & Chemical Engineering, St. Louis, United States