Eleanor C. Browne
Assistant Professor • Institute Fellow, CIRES • Director of Graduate Studies
Chemistry • Cooperative Institute for Research in Environmental Sciences (CIRES)

Office: Cristol 356
Office Phone: 303-735-7685
Lab: Cristol 326; Lab Phone: 303-492-9301
Student Office: Cristol 327; Student Office Phone: 303-492-9322


Ph.D.: University of California, Berkeley, 2012
Postdoctoral Fellow: Massachusetts Institute of Technology, 2012-2015

Areas of Expertise

Aerosols & Clouds, Atmospheric Field Studies, Environmental Chemistry, Instrument Development, Trace Gases & Radicals, Physical Chemistry

Awards and Honors

  • American Society for Mass Spectrometry Research Award (2019)
  • Provost Faculty Achievement Award (2022)     

The group uses a combination of lab experiments and field measurements to study chemical processes important for air quality and climate.  Current research focuses on the gas- and condensed-phase chemistry of reduced nitrogen compounds and how this chemistry impacts the formation, growth, and physical properties of aerosols. Recent field measurements focus on understanding how chemistry and boundary layer dynamics interact to influence new particle formation and growth. Additionally, we investigate organosilicon chemistry focusing on the mechanisms of rates of atmospheric transformation of the compounds of emerging concern. Results from lab and field measurements are incorporated into models that are used to investigate how this chemistry varies on regional and global scales and how it impacts processes relevant to air quality, climate, and the biosphere.

  • Reed, N. W.; Wing, B. A.; Tolbert, M. A.;  Browne, E. C.: Trace H2S Promotes Organic Aerosol Production and Organosulfur Compound Formation in Archean Analog Haze Photochemistry Experiments, Geophys. Res. Lett., 49, e2021GL097032, 10.1029/2021GL097032, 2022.
  • Alton, M. W.; Browne, E. C.; Atmospheric degradation of cyclic volatile methyl siloxanes: Radical chemistry and oxidation products, ACS Environmental Au, 10.1021/acsenvironau.1c00043, 2, 3, 263-274, 2022.
  • Reed, N. W.; Browne, E. C.; Tolbert, M. A.; Impact of Hydrogen Sulfide on Photochemical Haze Formation in Methane/Nitrogen Atmospheres, ACS Earth and Space Chem., 4(6), 897-904, doi: 10.1021/acsearthspacechem.0c00086, 2020.
  • Alton, M. W.; Browne, E. C.; Atmospheric Chemistry of Volatile Methyl Siloxanes: Kinetics and Products of Oxidation by OH Radicals and Cl Atoms, Environ. Sci. Tech., 54(10), 5992-5999, doi: 10.1021/acs.est.0c01368, 2020.
  • Berry, J. L.; Ugelow, M. S.; Tolbert, M. A.; Browne, E.C.; The Influence of Gas-phase Chemistry on Organic Haze Formation, Astrophys. J. Lett., 885(1), L6 (7pp), doi:10.3847/2041-8213/ab4b5b, 2019.