Source and Chemistry of Hydroxymethanesulfonate (HMS) in Fairbanks, Alaska
James Campbell, Michael A. Battaglia, Kayane K. Dingilian, Meeta Cesler‐Maloney, Jason M. St. Clair, T. F. Hanisco, Ellis S. Robinson, P. F. DeCarlo, William R. Simpson, Athanasios Nenes, Rodney J. Weber, Jingqiu Mao
Abstract
mass concentration of 2.8-6.8% during pollution episodes, substantially higher than what has been observed in other regions, likely due to the exceptionally low temperatures. HMS peaked in January, with lower concentrations in December and February, resulting from changes in precursors and meteorological conditions. Strong correlations with inorganic sulfate and organic mass during pollution events suggest that HMS is linked to processes responsible for poor air quality episodes. These findings demonstrate unique aspects of air pollution formation in cold and humid atmospheres.