Competing effects of viscosity and surface-tension depression on the hygroscopicity and CCN activity of laboratory surrogates for oligomers in atmospheric aerosol

Natasha Hodas1, Andreas Zuend2, Manabu Shiraiwa3, Richard C Flagan4, John Seinfeld4, Katherine Schilling5 and Thomas Berkemeier6, (1)California Institute of Technology, Pasadena, CA, United States, (2)McGill University, Department of Atmospheric and Oceanic Sciences, Montreal, QC, Canada, (3)Max Planck Institute for Chemistry, Mainz, Germany, (4)California Institute of Technology, Department of Chemical Engineering, Pasadena, United States, (5)U.S. Army Criminal Investigation Laboratory, Forest Park, GA, United States, (6)Max Planck Institute for Chemistry, Multiphase Chemistry Department, Mainz, Germany