Andrew Hallward-Driemeier

Graduate Students

Andrew is a Graduate Student with the Commane Atmospheric Composition Group at Columbia University. Andrew hails from Bethesda, MD and attended Williams College, where he received a B.A. in Chemistry. While at Williams, he studied the effects of specific functional groups on Secondary Organic Aerosol formation in C10 species. He then worked with the Commane Group for two years as a Research Assistant before starting as a graduate student in the Fall of 2023. Andrew is interested in environmental policy, particularly in regards to climate change, and is working on the methane emissions project. Outside the lab, Andrew is a baseball fan and enjoys playing volleyball and ultimate frisbee.


Andrew is working on methane and nitrous oxide emissions from wastewater treatment and landfills around NYC. He is also involved with projects looking at combustion of natural gas in boilers and stoves.



  • B.A., Williams College, Williamstown, MA – June 2021

Research Appointments

  • Graduate Research Assistant – August 2023-Present
    • Advisor: Róisín Commane
  • Research Assistant – November 2021 - August 2023
    • Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY
    • Advisor: Róisín Commane
  • Research Assistant – June 2018 - June 2021
    • Williams College, Williamstown, MA 
    • Advisor: Anthony Carrasquillo


  • Hallward-Driemeier, A. H.; Hall, J. R.; Spence, K. A.; Telicki, B. P.; Schaeffer, A. F.; Avila, J. C.; Albores, I. S.; Carrasquillo, A. J. Secondary Organic Aerosol Formation and Chemistry from the OH-Initiated Oxidation of Monofunctional C 10 Species. ACS Earth Space Chem. 2024, acsearthspacechem.3c00180.

  • Commane, R.; Hallward-Driemeier, A.; Murray, L. T. Intercomparison of Commercial Analyzers for Atmospheric Ethane and Methane Observations. Atmos. Meas. Tech. 2023, 16 (5), 1431–1441.