Dr. Akshay Ashok


  • Ph.D. in Aeronautics and Astronautics, 2016, Massachusetts Institute of Technology, Thesis: Reducing the air quality impacts of aircraft activity at airports (Advisor: Prof. Steven R.H. Barrett)
  • SM in Aeronautics and Astronautics, 2011, Massachusetts Institute of Technology, Thesis: The Air Quality Impact of Aviation in Future-Year Emissions Scenarios (Advisor: Dean Ian A. Waitz)
  • B.S. Aeronautical and Astronautical Engineering (highest distinction), 2009, Purdue University

Fields: Air Quality, Air Transportation, Emissions modeling

Lab Role: Postdoctoral Associate, Webmaster

Email: aashok@mit.edu

My research interests focus on the environmental impacts of aviation, specifically the impacts on air quality and human health. As a Masters student I studied regional air quality impacts due to US aviation, developed a rapid assessment tool to analyze the air quality impacts of aviation policy options and was involved in a number of aviation policy assessments. As a doctoral candidate, I performed research that improved the understanding of emissions’ impacts on air quality near airports and quantified the environmental impacts of airport operations as well as the effectiveness of operational mitigation strategies. I have also been involved in quantifying the air quality impacts of global aviation and modeling the emissions and air quality impacts of various anthropogenic sources in the US, Europe and Asia. I plan to continue research in the field of air transportation as a Postdoctoral Associate.

Publications and Presentations

A. Ashok and S. R. H. Barrett, “Adjoint-based computation of U.S. nationwide ozone exposure isopleths,” Atmospheric Environment, vol. 133, pp. 68–80, May 2016.

A. Ashok, H. Balakrishnan, and S. R. H. Barrett, “Reducing the air quality and CO2 climate impacts of taxi and takeoff operations at airports,” Transportation Research Part D: Transport and Environment, p. submitted, 2016.

S. H. L. Yim, G. L. Lee, I. H. Lee, F. Allroggen, A. Ashok, F. Caiazzo, S. D. Eastham, R. Malina, and S. R. H. Barrett, “Global, regional and local health impacts of civil aviation emissions,” Environ. Res. Lett., vol. 10, no. 3, p. 34001, Mar. 2015.

S. R. H. Barrett, R. L. Speth, S. D. Eastham, I. C. Dedoussi, A. Ashok, Robert Malina, and D. W. Keith, “Impact of the Volkswagen emissions control defeat device on US public health,” Environ. Res. Lett., vol. 10, no. 11, p. 114005, 2015.

P. J. Wolfe, S. H. L. Yim, G. Lee, A. Ashok, S. R. H. Barrett, and I. A. Waitz, “Near-airport distribution of the environmental costs of aviation,” Transport Policy, vol. 34, pp. 102–108, Jul. 2014.

A. Ashok, I. C. Dedoussi, S. H. L. Yim, H. Balakrishnan, and S. R. H. Barrett, “Quantifying the air quality-CO2 tradeoff potential for airports,” Atmospheric Environment, vol. 99, pp. 546–555, Dec. 2014.

F. Caiazzo, A. Ashok, I. A. Waitz, S. H. L. Yim, and S. R. H. Barrett, “Air pollution and early deaths in the United States. Part I: Quantifying the impact of major sectors in 2005,” Atmospheric Environment, vol. 79, pp. 198–208, Nov. 2013.

A. Ashok, I. H. Lee, S. Arunachalam, I. A. Waitz, S. H. L. Yim, and S. R. H. Barrett, “Development of a response surface model of aviation’s air quality impacts in the United States,” Atmospheric Environment, vol. 77, pp. 445–452, Oct. 2013.

S. R. H. Barrett, S. H. L. Yim, C. K. Gilmore, L. T. Murray, S. R. Kuhn, A. P. K. Tai, R. M. Yantosca, D. W. Byun, F. Ngan, X. Li, J. I. Levy, A. Ashok, J. Koo, H. M. Wong, O. Dessens, S. Balasubramanian, G. G. Fleming, M. N. Pearlson, C. Wollersheim, R. Malina, S. Arunachalam, F. S. Binkowski, E. M. Leibensperger, D. J. Jacob, J. I. Hileman, and I. A. Waitz, “Public Health, Climate, and Economic Impacts of Desulfurizing Jet Fuel,” Environmental Science & Technology, vol. 46, no. 8, pp. 4275–4282, Apr. 2012.

A. Mahashabde, P. Wolfe, A. Ashok, C. Dorbian, Q. He, A. Fan, S. Lukachko, A. Mozdzanowska, C. Wollersheim, S. R. H. Barrett, M. Locke, and I. A. Waitz, “Assessing the environmental impacts of aircraft noise and emissions,” Progress in Aerospace Sciences, vol. 47, no. 1, pp. 15–52, Jan. 2011.

A. Ashok, “The air quality impact of aviation in future-year emissions scenarios,” Massachusetts Institute of Technology, 2011.