Armin Sorooshian

Ph.D. student, Chemical Engineering, 2003-

Keck Engineering Labs, RM 218
email: armin [AT] caltech
(626) 395-4410

M. S., Chemical Engineering, California Institute of Technology, 2005
B.S., Chemical and Environmental Engineering, The University of Arizona, 2003, Summa Cum Laude and Honors, Outstanding Senior in the College of Engineering and Mines, Outstanding Senior in the Department of Chemical and Environmental Engineering

Awards and Honors

Gordon Moore Fellowship (Caltech, 2003-2007)

Research Interests

• Instrument development and characterization: particle-into-liquid sampler (PILS) and differential aerosol sizing and hygroscopicity probe (DASH-SP)
• Field and laboratory studies pertaining to aerosol composition and hygroscopicity with a special interest in cloud processing of aerosols

Publications

12. A. Sorooshian, F. J. Brechtel, S. Hersey, A. Corless, R. C. Flagan, and J. H. Seinfeld (2007), Rapid size-resolved aerosol hygroscopic growth measurements: differential aerosol sizing and hygroscopicity spectrometer probe (DASH-SP), in preparation.

11. N. L. Ng, P. S. Chhabra, A. W. H. Chan, J. D. Surratt, J. H. Kroll, A. J. Kwan, D. C. McCabe, P. O. Wennberg, A. Sorooshian, S. M. Murphy, N. F. Dalleska, R. C. Flagan, and J. H. Seinfeld (2007), Effect of NOx level on secondary organic aerosol (SOA) formation from the photooxidation of terpenes, Atmos. Chem. Phys. Disc., 7, 10131–10177.

10. A. Sorooshian, M. –L. Lu, F. J. Brechtel, H. Jonsson, G. Feingold, R. C. Flagan, and J. H. Seinfeld (2007), On the source of organic acid aerosol layers above clouds, Environ. Sci. Technol., 41(13), 4647-4654.

9. A. Sorooshian, N. L. Ng, A. W. H. Chan, G. Feingold, R. C. Flagan, and J. H. Seinfeld (2007), Particulate organic acids and overall water-soluble aerosol composition measurements from the 2006 Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS), J. Geophys. Res., 112, D13201, doi:10.1029/2007JD008537.

8. S. Gilardoni, L. M. Russell, A. Sorooshian, R. C. Flagan, J. H. Seinfeld, T. S. Bates, P. K. Quinn, J. D. Allan, B. Williams, A. H. Goldstein, T. B. Onasch, and D.R. Worsnop (2007), Regional variation of organic functional groups in aerosol particles on four U.S. East Coast platforms during ICARTT 2004, J. Geophys. Res. 112, D10S27.

7. 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 (2007), Secondary aerosol formation from atmospheric reactions of aliphatic amines, Atmos. Chem. Phys., 7(9), 2313–2337.

6. C. Fountoukis,, A. Nenes, N. Meskhidze, R. Bahreini, W. C. Conant, H. Jonsson, S. M. Murphy, A. Sorooshian, V. Varutbangkul, F. J. Brechtel, R. C. Flagan, and J. H. Seinfeld (2007), Aerosol-cloud drop concentration closure for clouds sampled during the International Consortium for Atmospheric Research on Transport and Transformation 2004 campaign, J. Geophys. Res. 112, D10S30.

5. R. Szmigielski, J. D. Surratt, R. Vermeylen, K. Szmigielska, J. H. Kroll, N. L. Ng, S. M. Murphy, A. Sorooshian, J. H. Seinfeld, and M. Claeys (2007), Characterization of 2-methylglyceric acid oligomers in secondary organic aerosol formed from the photooxidation of isoprene using trimethylsilylation and gas chromatography/ion trap mass spectrometry, J. Mass. Spectrom., 42, 101-116.

4. J. D. Surratt, J. H. Kroll, T. E. Kleindienst, E. O. Edney, M. Claeys, A. Sorooshian, N. L. Ng, J. H. Offenberg, M. Lewandowski, M. Jaoui, R. C. Flagan, and J. H. Seinfeld (2007), Evidence for organosulfates in secondary organic aerosol, Environ. Sci. Technol., 41, 517-527.

3. A. Sorooshian, V. Varutbangkul, F. J. Brechtel, B. Ervens, G. Feingold, R. Bahreini, S. M. Murphy, J. S. Holloway, E. L. Atlas, G. Buzorius, H. Jonsson, R. C. Flagan, and J. H. Seinfeld (2006), Oxalic acid in clear and cloudy atmospheres: Analysis of data from International Consortium for Atmospheric Research on Transport and Transformation 2004, J. Geophys. Res. 111, D23S45, doi:10.1029/2005JD006880.

2. J. D. Surratt, S. M. Murphy, J. H. Kroll, N. L. Ng, L. Hildebrandt, A. Sorooshian, R. Szmigielski, R. Vermeylen, W. Maenhaut, M. Claeys, R. C. Flagan, and J. H. Seinfeld (2006), Chemical composition of secondary organic aerosol formed from the photooxidation of isoprene, J. Phys. Chem. A, 110, 9665-9690.

1. A. Sorooshian, F. J. Brechtel, Y. L. Ma, R. J. Weber, A. Corless, R. C. Flagan, and J. H. Seinfeld (2006), Modeling and characterization of a particle-into-liquid sampler (PILS), Aerosol Sci. Tech., 40, 396-409.