Albert Rivas-Ubach¹, Swarup China¹, Chuck R Smallwood², Pubudu P Handakumbura³, Noopur Sharma⁴, Ljiljana Paša-Tolić³, Amir H. Ahkami¹, Alex B Guenther¹ and Christer Jansson⁵, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)Pacific Northwest National Lab, Richland, WA, United States, (3)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, (4)Michigan Technological Univ, Houghton, MI, United States, (5)Swedish Meteorological and Hydrological Institute, Norrköping, Sweden