Interactive comment on “Secondary aerosol formation from atmospheric reactions of aliphatic amines” by S. M. Murphy et al

Secondary aerosol from atmospheric aliphatic amines

Secondary aerosol formation from atmospheric reactions of aliphatic amines S. M. Murphy, A. Sorooshian, J. H. Kroll, N. L. Ng, P. Chhabra, C. Tong, J. D. Surratt, E. Knipping, R. C. Flagan, and J. H. Seinfeld Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA Current Address: Aerodyne Research Inc., Billerica, MA, USA Electric Power Resea...

Secondary aerosol formation from atmospheric reactions of aliphatic amines

Although aliphatic amines have been detected in both urban and rural atmospheric aerosols, little is known about the chemistry leading to particle formation or the potential aerosol yields from reactions of gas-phase amines. We present here the first systematic study of aerosol formation from the atmospheric reactions of amines. Based on laboratory chamber experiments and theoretical calculatio...

Interactive comment on “Secondary Organic Aerosol from Atmospheric Photooxidation of Indole” by Julia Montoya et al

Cloud condensation nuclei (CCN) activity of aliphatic amine secondary aerosol

Aliphatic amines can form secondary aerosol via oxidation with atmospheric radicals (e.g., hydroxyl radical and nitrate radical). The particle can contain both secondary organic aerosol (SOA) and inorganic salts. The ratio of organic to inorganic materials in the particulate phase influences aerosol hygroscopicity and cloud condensation nuclei (CCN) activity. SOA formed from trimethylamine (TMA...

Interactive comment on “Impacts of aerosol direct effects on tropospheric ozone through changes in atmospheric dynamics and photolysis rates” by Jia Xing et al

[Comment]: However, the authors have not considered the prominent way aerosols impact tropospheric ozone formation via heterogeneous reactions which leads me to question the conclusions of this study. Several studies have highlighted the role of aerosols in modulating ozone via heterogeneous reactions (eg., Liao and Seinfeld, 2005; Ti et al., 2005; Pozzoli et al., 2008; Xu et al., 2012; Lou et ...