Research

Peer-reviewed publications (most recent listed first)

Notes: + Equal authorship, * Current student/alumnus

  1. Ngo, N.S. and Bashar, S.* (2024) “The impacts of extreme weather events on U.S. public transit ridership”, Transportation Research Part D: Transport and Environment, 137, 104504.
  2. Ngo, N.S. and Anand, K.* (2024) “Affordable transportation access to treatment for opioid use disorder”, Transport Policy, 156, p. 152-163.
  3. Krishnamurthy, C.K.+ and Ngo, N.S.+ (2024) “The effects of ride-hailing services on freeway congestion and air quality: Evidence from Uber in California”, Journal of the Association of Environmental and Resource Economists, 11, 6.
  4. Ngo, N.S., Martin, A.* (2023) “The coronavirus lockdowns affect bus ridership, bikesharing, and equity in a small U.S. county,” Journal of Public Transportation, 25, 100065.
  5. Ngo, N.S., Gotschi, T., and Clark, B.Y (2021) “The effects of ride-hailing services on bus ridership in a medium-sized urban area using micro-level data: Evidence from the Lane Transit District”, Transport Policy, 105, p. 44-53.
  6. Krishnamurthy, C.K.+ and Ngo, N.S.+ (2020) “The effects of smart-parking on transit and traffic: Evidence from SFpark,” Journal of Environmental Economics and Management, 99, 102273.
  7. Ngo, N.S. (2019) “Urban Bus Ridership, Income, and Extreme Weather Events,” Transportation Research Part D: Transport and Environment, Disasters & Resilience section, 77, p. 464-475.
  8. Ngo, N.S., Asseko, S.*, Obiang, M., Allo’o Allo’o, S.M., and Hystad, P. (2019) “The relationship among PM2.5, traffic emissions, and socioeconomic status: Evidence from Gabon using low-cost, portable air quality monitors,” Transportation Research Part D: Transport and Environment, SI: Urbanization, Transportation, and Air Quality in Developing Countries, 68, p. 2-9.
  9. Gatari, M.J., Kinney, P.L., Yan, B., Sclar, E., Volavka-Close, N., Ngo, N.S., Gaita, S.M., Law, A., Ndiba, P., Gachanja, A., Graeff, J., Chillrud, S.N. (2019) “High airborne black carbon concentrations measured near roadways in Nairobi, Kenya” Transportation Research Part D: Transport and Environment, SI: Urbanization, Transportation, and Air Quality in Developing Countries, 68, p. 99-109.
  10. Ngo, N.S., Bao, X., and Zhong, N. (2018) “Local pollutants go global: The impacts of intercontinental air pollution from China on morbidity in California,” Environmental Research, 165, p. 473-483
  11. Ngo, N.S., Zhong, N., and Bao, X. (2018) “The effects of transboundary air pollution following major events in China on air quality in the U.S.: Evidence from Chinese New Year and sandstorms,” Journal of Environmental Management, 212, 15, p. 169-175.
  12. Ngo, N.S. (2017) “Transit buses, emission standards, and infant health,” Journal of Policy Analysis and Management, 36, 4, p.773-789.
  13. Ngo, N.S., Kokoyo, S., and Klopp, J. (2017) “Why Participation Matters for Air Quality Studies: risk perceptions, understandings of air pollution and mobilization in a poor neighborhood in Nairobi, Kenya,” Public Health, 142, 177-185.
  14. Ngo, N.S. and Horton, R. (2016) “Climate change and fetal health: The impacts of exposure to extreme temperatures in New York City,” Environmental Research, vol. 144, p. 158-164.
  15. Ngo, N.S. (2015) “Analyzing the relationship between bus pollution policies and morbidity using a quasi-experiment,” Medicine, vol. 94, issue 37.
  16. Ngo, N.S., Gatari, M.J., Yan, B., Chilrud, S., Bouhamam, K., and Kinney, P. (2015) “Occupational exposure to roadway emissions and inside informal settlements in sub-Saharan Africa: A pilot study in Nairobi, Kenya” Atmospheric Environment, 111, p. 179-184.
  17. Kinney, PL, Gatari, M., Volavka-Close, N., Ngo, N., Ndiba, PK., Law, A., Gachanja, A., Mwaniki, S., Chillurd, SN., Scalar, E. (2011) “Traffic Impacts on PM2.5 Air Quality in Nairobi, Kenya,” Environmental Science and Policy, 14, p. 369-78.
  18. Ngo N.S. and Pataki D.E. (2008) “The energy and mass balance of Los Angeles County.” Urban Ecosystems, 11, 2, 121-139.

Papers under review and working papers

“The impact of vehicle miles traveled and urban form on air pollution” (With Frank Zou, Yizhao Yang, and Edward Wei*) (Revise and resubmit at Transportation Research Interdisciplinary Perspectives)

“COVID-19 Vaccine Hesitancy & Information Sources Among Adults with Disabilities” (with Devan McClain*, Jacob Ditsch, and Charles Drum) (under review)

“Personal and Neighborhood Low-Cost Monitoring to Change Air Pollution Awareness, Perceptions, and Behaviors: A Case Study in Gabon, Africa” (with Sigride Vencesla Jenniska Asseko*, Alain Desouza, Medard Obiang Ebanega, Robert Vancesla Obiang Zogo, Sarah E. Rothenberg, Adam Branscum, Nordica MacCarty, Perry Hystad) (submitted)

“Challenges for a sustainable, equitable transportation system in Bangladesh” (with Shahinur Bashar*)

“The long-term effects of the COVID-19 pandemic on women scientists” (with Jean Stockard, Kimberly Oremus, Gianna Linares*, Megan Tuleya*, Wren Ganey*, and Priscilla Lewis)

“Does aggressive policing worsen infant health disparities? Evidence from ‘Stop and Frisk’ in New York City” (with James Rising)