Ammonium and Ammonia: Concentration Trends in the Northeast United States

Poster presented (Schwab) at the 37th American Association for Aerosol Research (AAAR) Annual Conference, Portland, OR, USA

James Schwab, Hesham Hassan, Matthew Ninneman, Joseph Marto, Jie Zhang, Sara Lance, Christopher Lawrence, Fangqun Yu, Gan Luo, Arshad Nair, Kevin Civerolo, Oliver Rattigan