James R. Hite

TL;DR: It is shown that isoprene-derived SOA is directly mediated by the abundance of sulfate, instead of the particle water content and/or particle acidity as suggested by prior laboratory studies, which implies that future reduction in SO2 and NOx emissions can considerably reduce the SOA burden in the southeastern US.

TL;DR: In this article, the authors investigated mass concentrations of particle water and related particle pH for ambient fine-mode aerosols sampled in a relatively remote Alabama forest during the Southern Oxidant and Aerosol Study (SOAS) in summer and at various sites in the southeastern US during different seasons, as part of the Southeastern Center for Air Pollution and Epidemiology (SCAPE) study.

TL;DR: In this paper, the results of AMS three-factor positive matrix factorization (PMF) analysis for the PILS-generated aerosols showed that the most hygroscopic components are most likely the most and the least volatile features of the aerosols.

TL;DR: In this article, the volatility distribution of OA and its sources during the Southern Oxidant and Aerosol Studies (SOAS; Centreville, Alabama) was constrained using measurements from an aerodyne high-resolution time-of-flight aerosol mass spectrometer and a thermodenuder.

TL;DR: In this article, the authors presented the development and characterization of a thermodenuder for the study and interpretation of aerosol volatility and hygroscopicity with a comprehensive instrument model embedded within an optimization framework.