Haley Royer¹, Dhruv Mitroo¹, Patricia L Blackwelder², Sarah M Hayes³, Savannah Haas⁴, Kerri Pratt⁴, Thomas E Gill⁵ and Cassandra Gaston¹, (1)University of Miami, Department of Atmospheric Sciences, Miami, FL, United States, (2)University of Miami, Center for Advanced Microscopy, Miami, FL, United States, (3)USGS, Menlo Park, CA, United States, (4)University of Michigan Ann Arbor, Department of Chemistry and Department of Earth & Environmental Sciences, Ann Arbor, MI, United States, (5)University of Texas at El Paso, Geological Sciences / Environmental Science and Engineering Program, El Paso, TX, United States