Gregor Stewart

426 total citations
18 papers, 253 citations indexed

About

Gregor Stewart is a scholar working on Health, Toxicology and Mutagenesis, Automotive Engineering and Atmospheric Science. According to data from OpenAlex, Gregor Stewart has authored 18 papers receiving a total of 253 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Health, Toxicology and Mutagenesis, 7 papers in Automotive Engineering and 5 papers in Atmospheric Science. Recurrent topics in Gregor Stewart's work include Air Quality and Health Impacts (16 papers), Vehicle emissions and performance (6 papers) and Air Quality Monitoring and Forecasting (5 papers). Gregor Stewart is often cited by papers focused on Air Quality and Health Impacts (16 papers), Vehicle emissions and performance (6 papers) and Air Quality Monitoring and Forecasting (5 papers). Gregor Stewart collaborates with scholars based in United Kingdom, Greece and United States. Gregor Stewart's co-authors include Mohammed Iqbal Mead, R. L. Jones, Olalekan Popoola, Sean Beevers, Frank J. Kelly, Max Priestman, W. Kevin Hicks, David C. Carslaw, David Lowry and M. L. Williams and has published in prestigious journals such as Environmental Science & Technology, Atmospheric Environment and Environment International.

In The Last Decade

Gregor Stewart

17 papers receiving 247 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Gregor Stewart United Kingdom 7 175 132 92 52 38 18 253
Bjarke Mølgaard Finland 8 167 1.0× 84 0.6× 125 1.4× 74 1.4× 33 0.9× 12 293
V. Bright United Kingdom 7 207 1.2× 269 2.0× 68 0.7× 91 1.8× 60 1.6× 7 324
Elizabeth W. Spalt United States 9 254 1.5× 179 1.4× 45 0.5× 42 0.8× 19 0.5× 12 325
Dan Rutherford United States 8 106 0.6× 201 1.5× 114 1.2× 138 2.7× 23 0.6× 17 390
Robert Giannelli United States 9 255 1.5× 105 0.8× 212 2.3× 109 2.1× 18 0.5× 10 370
Barbiere Maurizio Italy 5 238 1.4× 329 2.5× 85 0.9× 101 1.9× 69 1.8× 7 397
Peter Steigmeier Switzerland 7 286 1.6× 187 1.4× 117 1.3× 92 1.8× 16 0.4× 9 397
Piotr Modzel Poland 6 210 1.2× 257 1.9× 90 1.0× 79 1.5× 21 0.6× 6 306
Molly J. Haugen United Kingdom 11 167 1.0× 104 0.8× 165 1.8× 88 1.7× 9 0.2× 16 282
Cheol-Soo Lim South Korea 10 183 1.0× 70 0.5× 102 1.1× 155 3.0× 46 1.2× 19 319

Countries citing papers authored by Gregor Stewart

Since Specialization
Citations

This map shows the geographic impact of Gregor Stewart's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gregor Stewart with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gregor Stewart more than expected).

Fields of papers citing papers by Gregor Stewart

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gregor Stewart. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gregor Stewart. The network helps show where Gregor Stewart may publish in the future.

Co-authorship network of co-authors of Gregor Stewart

This figure shows the co-authorship network connecting the top 25 collaborators of Gregor Stewart. A scholar is included among the top collaborators of Gregor Stewart based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gregor Stewart. Gregor Stewart is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Beddows, Andrew, Gregor Stewart, Mike Holland, et al.. (2025). What Impact Does Net Zero Action on Road Transport and Building Heating Have on Exposure to UK Air Pollution?. Environmental Science & Technology. 59(2). 1274–1286. 1 indexed citations
2.
Wood, D. L., Dimitris Evangelopoulos, Nutthida Kitwiroon, et al.. (2025). Personalised estimation of exposure to ambient air pollution and application in a longitudinal cohort analysis of cognitive function in London-dwelling older adults. Journal of Exposure Science & Environmental Epidemiology. 36(1). 33–40. 1 indexed citations
3.
Walton, Heather, David Dajnak, Mike Holland, et al.. (2025). Health and associated economic benefits of reduced air pollution and increased physical activity from climate change policies in the UK. Environment International. 196. 109283–109283. 5 indexed citations
4.
Stewart, Gregor, David Dajnak, David C. Carslaw, et al.. (2024). New NOx and NO2 vehicle emission curves, and their implications for emissions inventories and air pollution modelling. Urban Climate. 57. 102103–102103. 2 indexed citations
5.
Beevers, Sean, Andrew Beddows, Gregor Stewart, et al.. (2024). Climate change policies reduce air pollution and increase physical activity: Benefits, costs, inequalities, and indoor exposures. Environment International. 195. 109164–109164. 4 indexed citations
6.
Liu, Yunzhe, David Dajnak, Andrew Beddows, et al.. (2024). Impact of net zero policy scenarios on air pollution inequalities in England and Wales. Environment International. 193. 109065–109065. 1 indexed citations
7.
Thompson, Rhiannon, Gregor Stewart, Tuan V. Vu, et al.. (2024). Air pollution, traffic noise, mental health, and cognitive development: A multi-exposure longitudinal study of London adolescents in the SCAMP cohort. Environment International. 191. 108963–108963. 5 indexed citations
8.
Evangelopoulos, Dimitris, D. L. Wood, David Dajnak, et al.. (2024). Net-Zero policies in the UK: The air pollution co-benefits on mortality and morbidity. ISEE Conference Abstracts. 2024(1).
9.
Dajnak, David, Nutthida Kitwiroon, Andrew Beddows, et al.. (2023). Can the UK meet the World Health Organization PM2.5 interim target of 10 μg m−3 by 2030?. Environment International. 181. 108222–108222. 4 indexed citations
10.
Drysdale, Will, Adam Vaughan, Freya Squires, et al.. (2022). Eddy covariance measurements highlight sources of nitrogen oxide emissions missing from inventories for central London. Atmospheric chemistry and physics. 22(14). 9413–9433. 9 indexed citations
11.
Vu, Tuan V., Gregor Stewart, Nutthida Kitwiroon, et al.. (2022). Assessing the contributions of outdoor and indoor sources to air quality in London homes of the SCAMP cohort. Building and Environment. 222. 109359–109359. 27 indexed citations
12.
Dajnak, David, Nutthida Kitwiroon, Gregor Stewart, et al.. (2022). Pathway to WHO: Achieving clean air in the UK - Modelling air quality costs and benefits. ISEE Conference Abstracts. 2022(1). 4 indexed citations
13.
Hicks, W. Kevin, Sean Beevers, Anja H. Tremper, et al.. (2021). Quantification of Non-Exhaust Particulate Matter Traffic Emissions and the Impact of COVID-19 Lockdown at London Marylebone Road. Atmosphere. 12(2). 190–190. 49 indexed citations
14.
Beevers, Sean, David C. Carslaw, M. L. Williams, et al.. (2016). Traffic management strategies for emissions reduction: recent experience in London. Research Portal (King's College London). 27–27. 11 indexed citations
15.
Popoola, Olalekan, Gregor Stewart, Mohammed Iqbal Mead, & R. L. Jones. (2016). Development of a baseline-temperature correction methodology for electrochemical sensors and its implications for long-term stability. Atmospheric Environment. 147. 330–343. 102 indexed citations
16.
Carslaw, David C., Max Priestman, M. L. Williams, Gregor Stewart, & Sean Beevers. (2015). Performance of optimised SCR retrofit buses under urban driving and controlled conditions. Atmospheric Environment. 105. 70–77. 17 indexed citations
17.
Popoola, Olalekan, Mohammed Iqbal Mead, V. Bright, et al.. (2013). A Portable Low-Cost High Density Sensor Network for Air Quality at London Heathrow Airport. EGU General Assembly Conference Abstracts. 7 indexed citations
18.
Bennett, Michael, Simon Christie, Kevin Garry, et al.. (2013). Abatement of an Aircraft Exhaust Plume Using Aerodynamic Baffles. Environmental Science & Technology. 47(5). 2346–2352. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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