Tiberias Okanga, University of Maryland College Park, Department of Chemistry and Biochemistry, College Park, MD, United States, Russell Dickerson, University of Maryland College Park, Atmospheric and Oceanic Sciences, College Park, United States, Akua A Asa-Awuku, University of Maryland College Park, College Park, United States, Xinrong Ren, NOAA, Air Resources Laboratory, College Park, United States, Phillip Stratton, NOAA Air Resources Laboratory; Department of Atmospheric and Oceanic Science, University of Maryland, College Park, United States and Stephanie Jacoby, University of Maryland College Park, Chemistry, College Park, United States