Dr Karn Vohra PhD

Dr Karn Vohra

School of Geography, Earth and Environmental Sciences
Research Fellow

Contact details

In Karn Vohra's research, he make extensive use of ground- and space-based observations, and state-of-knowledge chemical transport and health risk assessment models to improve our understanding of the influence of air pollution and its sources on atmospheric chemistry and public health.

Qualifications

PhD in Environmental Health and Risk Management, ºÚÁϳԹÏÍø, 2021

MTech in Civil Engineering, Indian Institute of Technology Kanpur, India, 2015

BTech in Civil Engineering, Indian Institute of Technology Kanpur, India, 2013

Biography

Karn Vohra obtained his PhD in Environmental Health and Risk Management from the ºÚÁϳԹÏÍø, funded by the University’s Global Challenges Studentship. He makes extensive use of multiple data sources to understand the influence of novel air pollution sources, determine long-term changes in air quality and quantify impacts on human health and inequities at multiple scales, from cities, to regions, to the globe.

He completed my Bachelors and Masters in Civil Engineering from the Indian Institute of Technology Kanpur, India in 2015. Prior to moving to the UK, he worked with McKinsey and Company as a data analyst for 2 years.

Passionate about early career researcher development, he also served as a PhD representative at the ºÚÁϳԹÏÍø, acting as a liaison between the PhD cohort and the departmental administration. He also mentored junior members of my research group at UCL and currently, he serves on the international. He recently delivered a skills training workshop for early career researchers on "".

He is frequently invited to deliver talks and workshops. These include the NASA Langley Satellite-Assisted Particulate Matter meeting, IIT-Bombay workshop on secondary organic aerosols, Lancaster University, UCL Physical Geography seminar series, University of Edinburgh Global Change seminar series, UoB Air Pollution and Atmospheric Chemistry seminar series, Great Ormond Street Hospital (GOSH) lunchtime seminar and University of the Third Age (U3A) Science Group Meeting.

His contributions to the wider academic ºÚÁϳԹÏÍø also include peer review of articles in prestigious journals such as Science, The Lancet Planetary Health, Nature Sustainability, and Remote Sensing of Environment, and grant proposals for the Belgian Science Policy Office. He is currently a Review Editor for the journal Frontiers in Sustainable Cities - Climate Change and Cities and a part of the Global Burden of Disease (GBD) Collaborator Network.

Teaching

Guest Lecturer, UCL (2021-2024)

  • Title: Increasing urban air pollution and its influence on climate, master’s course, Cities and Climate Change, 2024
  • Title: Impact of air pollution on human health, 3rd year undergraduate course Environmental Consequences of Human Activity, 2024
  • Title: Air quality and health in fast-growing tropical cities, master’s course, Remote Sensing and Environmental Mapping, 2021

Research

  • Air quality modelling of West Midlands (UK) for the Clean Energy and Equitable Transportation Solutions (CLEETS) project
  • Global health burden of ammonia emissions from fossil-fuel derived synthetic nitrogen fertilizers
  • Impact of major oil and gas lifecycle stages on air pollution and associated health burden and disparities in the United States
  • Influence of oil and gas end-use on summertime particulate matter and ozone pollution in the Eastern US
  • Long-term trends in air quality in major cities in the UK and India, and emerging megacities in tropical Asia, Africa, Middle East and Latin America
  • Global mortality from outdoor fine particle pollution generated by fossil fuel combustion
  • Submicron particle dynamics for different wall surfaces under quiescent and turbulent conditions

Publications

Recent publications

Article

GBD 2021 Forecasting Collaborators & Vohra, K 2024, '', The Lancet, vol. 403, no. 10440, pp. 2204-2256.

Vohra, K, Marais, EA, Achakulwisut, P, Lu, G, Kelly, JM, Harkins, C & McDonald, B 2024, '', Environmental Science and Technology, vol. 58, no. 44, pp. 19736-19747.

Marais, EA, Kelly, JM, Vohra, K, Li, Y, Lu, G, Hina, N & Rowe, EC 2023, '', GeoHealth, vol. 7, no. 10, e2023GH000910.

Vohra, K, Marais, EA, Bloss, WJ, Schwartz, J, Mickley, LJ, Damme, MV, Clarisse, L & Coheur, P-F 2022, '', Science Advances, vol. 8, no. 14, abm4435.

Vohra, K, Vodonos, A, Schwartz, J, Marais, EA, Sulprizio, MP & Mickley, LJ 2021, '', Environmental Research, vol. 195, 110754.

Vohra, K, Marais, EA, Suckra, S, Kramer, L, Bloss, WJ, Sahu, R, Gaur, A, Tripathi, SN, Van Damme, M, Clarisse, L & Coheur, PF 2021, '', Atmospheric Chemistry and Physics, vol. 21, no. 8, pp. 6275-6296.

Vohra, K, Ghosh, K, Tripathi, SN, Thangamani, I, Goyal, P, Dutta, A & Verma, V 2017, '', Atmospheric Environment, vol. 152, pp. 330-344.

Abstract

Marais, EA, Vohra, K, Kelly, JM, Li, Y & Lu, G 2023, '', Lancet (London, England), vol. 402, no. Supplement 1, pp. S66-S66.

Paper

Vohra, K, Marais, E, Kramer, L, Bloss, W, Porter, P, Van Damme, M, Clarisse, L & Coheur, P-F 2020, ''.

Vohra, K, Marais, EA, Lu, G, Bloss, W, Zhu, L, Eskes, H & De Smedt, I 2020, '', pp. A013-04. <>

Lu, G, Marais, EA, Vohra, K & Zhu, L 2020, '', pp. A031-0009. <>

Marais, EA, Vohra, K, Porter, P, Dajda, N, Moniz, S, Poulsen, C, Newington, J & Tsagatakis, I 2018, '', pp. A51M-2373. <>

Vohra, K, Marais, EA, Bloss, W & Porter, P 2018, '', pp. A51M-2364. <>

Review article

Sayyed, TK, Ovienmhada, U, Kashani, M, Vohra, K, Kerr, GH, O’Donnell, C, Harris, MH, Gladson, L, Titus, AR, Adamo, SB, Fong, KC, Gargulinski, EM, Soja, AJ, Anenberg, S & Kuwayama, Y 2024, '', Environmental Research Letters, vol. 19, no. 3, 033001.

Software

Vohra, K, , 2021, Software, Zenodo.