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Carl Percival

Photo of Carl Percival


4800 Oak Grove Drive
M/S 183-901

Pasadena, CA 91109





Curriculum Vitae:

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Member of:

Laboratory Studies And Atmospheric Observations

Group Supervisor


Dr. Percival’s research studies the sources and fate of pollution in the atmosphere. In particular, on the photochemical oxidation of atmospheric volatile organic compounds (VOCs) which has major implications for urban and regional air quality, acid deposition, and global climate.

His research is in three main areas: the first is the development of methods to directly observe fundamental gas phase kinetics of key reactions of atmospheric importance in the laboratory. The second area of work focuses on the development of novel analytical techniques to quantify trace species in the atmosphere and the third area is on the study of the interaction of gases with aerosols. The data coming from his laboratory are providing an essential basis for the interpretation of atmospheric behavior and helping us to construct diagnostic and forecasting models of the atmosphere.


  • 1995 D. Phil. Chemistry, University of Oxford
  • 1995 MA, University of Oxford
  • 1992  BA(Hons) Chemistry, University of Oxford

Professional Experience

  • Jet Propulsion Laboratory (2017-present)
    • Senior Research Scientist (2022 - present)
    • Group Supervisor (2021- present)
    • Research Scientist (2005 - 2022)
  • 2004-2017 Professor of Atmospheric Chemistry, School of Earth, Atmospheric and Environmental Sciences, University of Manchester.
  • 2003-2004 Lecturer, Department of Physics, University of Manchester Institute of Science and Technology.
  • 1999-2003 Senior Lecturer in Analytical Science, Department of Chemistry and Physics, Nottingham Trent University.
  • 1997-1999 Research Fellow, Department of Chemistry, University of Cambridge.
  • 1995-1997 Research Associate, Department of Chemistry, Massachusetts Institute of Technology.

Research Interests

  • Laboratory studies of elementary processes of atmospheric importance.
  • Measurements of atmospheric composition using ground based and airborne platforms with a range of analytical techniques.
  • Transformation and transport of aerosols on urban to regional scales.
  • Computer modelling of air quality on urban, regional and global scales

Selected Publications

The most up-to-date list is at:

A subset of papers is below.

  1. RL Caravan, M F Vansco, K Au, MAH Khan, Y- Li, FAF Winiberg, K Zuraski, Y-H Lin, W Chao, N Trongsiriwat, PJ Walsh, DL Osborn, CJ Percival, DE Shallcross, L Sheps, SJ Klippenstein, CA Taatjes and MI Lester (2020). Direct kinetic measurements and theoretical predictions of an isoprene-derived Criegee intermediate. Proceedings of the National Academy of Sciences, 117 (18), 9733-9740.
  2. G McFiggans, T F Mentel, J Wildt, I Pullinen, S Kang, E Kleist, S Schmitt, M Springer, R Tillmann, C Wu, D Zhao, M Hallquist, C Faxon, M Le Breton, Å M Hallquist, D Simpson, R Bergström, M E Jenkin, M Ehn, J A Thornton, M R Alfarra, TJ Bannan, CJ Percival, M Priestley, D Topping and A Kiendler-Scharr (2019). Secondary organic aerosol reduced by mixture of organic vapours. Nature, 565, 587-593.
  3. M Priestley, M Le Breton, TJ Bannan, KE Leather, A Bacak, E Reyes-Willegas, F DeVocht, BMA Shallcross, T Brazier, MA Khan, J Allen, DE Shallcross and CJ Percival (2018). Observations of Isocyanate, Amide, Nitrate, and Nitro Compounds From an Anthropogenic Biomass Burning Event Using a ToF-CIMS, J. Geophys. Res., 123, 7687- 7704.
  4. Daniel C Anderson, Julie M Nicely, Ross J Salawitch, Timothy P Canty, Russell R Dickerson, Thomas F Hanisco, Glenn M Wolfe, Eric C Apel, Elliot Atlas, Thomas Bannan, Stephane Bauguitte, Nicola J Blake, James F Bresch, Teresa L Campos, Lucy J Carpenter, Mark D Cohen, Mathew Evans, Rafael P Fernandez, Brian H Kahn, Douglas E Kinnison, Samuel R Hall, Neil RP Harris, Rebecca S Hornbrook, Jean-Francois Lamarque, Michael Le Breton, James D Lee, Carl Percival, Leonhard Pfister, R Bradley Pierce, Daniel D Riemer, Alfonso Saiz-Lopez, Barbara JB Stunder, Anne M Thompson, Kirk Ullmann, Adam Vaughan, Andrew J Weinheimer (2016). A pervasive role for biomass burning in tropical high ozone/low water structures. Nature Communications, DOI:101.1038/ncomms10267.
  5. CA Taatjes, O. Welz, A.K. Eskola, J.D. Savee, A.M. Scheer, D.E. Shallcross, B. Rotavera, E.P.F.Lee, J.M. Dyke, D.K.W. Mok, D.L. Osborn and C.J. Percival (2013) Direct Measurements of Conformer-Dependent Reactivity of the Criegee Intermediate CH3CHOO, Science, 340, 177-180.
  6. O. Welz, J.D. Savee, D.L. Osborn, S. Vasu, C.J. Percival, D.E. Shallcross, and C.A. Taatjes (2012). Reaction of CH2I with O2 forms Criegee Intermediate: Direct Measurements of CH2OO Kinetics, Science, 335, 204-207.