Professor Roy Harrison OBE FRS

Professor Roy Harrison

School of Geography, Earth and Environmental Sciences
Queen Elizabeth II Birmingham Centenary Professor of Environmental Health

Contact details

School of Geography, Earth & Environmental Sciences
University of Birmingham
Edgbaston Campus
B15 2TT
United Kingdom

Roy Harrison’s research interests lie in the field of environment and human health. His main specialism is in air pollution, from emissions through atmospheric chemical and physical transformations to exposure and effects on human health. Much of this work is designed to inform the development of policy.


B.Sc. (Class I Honours Chemistry), University of Birmingham (July 1969)

Ph.D. (Organic Chemistry), University of Birmingham (December 1972)

D.Sc. (Environmental Chemistry), University of Birmingham (1989)


Roy Harrison is Queen Elizabeth II Birmingham Centenary Professor of Environmental Health at the University of Birmingham, UK, and also Distinguished Adjunct Professor at King Abdulaziz University, Saudi Arabia. His research interests are in air pollution, especially airborne particulate matter.  He has also been heavily engaged at the science/policy interface as a member of several government technical advisory groups for the Department of Health and the Department for Environment, Food and Rural Affairs (Defra) in the U.K. including until recently membership of Defra’s Science Advisory Council.  He was a contributor to the World Health Organization Global Air Quality Guidelines and the Guidelines for Quality of Indoor Air. He was appointed an Officer of the Order of the British Empire (OBE) in the 2004 New Year Honours List and elected a Fellow of the Royal Society in 2017.  He is author of over 500 papers in the peer-reviewed literature, and is listed by Web of Science as a Highly Cited Researcher.

Postgraduate supervision

Roy Harrison has carried out pioneering research in: airborne particle concentrations and numbers in the UK; characterisation of emission and impact of ultrafine particulate matter; measurement and modelling of exposure to air toxics and verification by biomarker; high time-resolution chemical fingerprinting of particulate emissions from the steel industry; and the relationship of ultrafine and fine particles in indoor and outdoor respiratory health. Professor Harrison's recent research projects include:

Artificial chemical ageing of ambient atmospheric aerosol
Novel compact after treatment systems for simultaneous reduction of diesel engine NOx, PM, CO and HC emissions
Use of chemical composition and molecular markers to infer the sources of airborne particulate matter
Understanding the fate of traffic-generated particles

Professor Harrison has successfully supervised at least 30 doctoral researchers working in his areas of interest.


Air Pollution;  Atmospheric Science;  Environmental Health;  Environmental Chemistry; Aerosol Science


Recent publications


Hama, SML, Kumar, P, Harrison, RM, Bloss, WJ, Khare, M, Mishra, S, Namdeo, A, Sokhi, R, Goodman, P & Sharma, C 2020, 'Four-year assessment of ambient particulate matter and trace gases in the Delhi-NCR region of India', Sustainable Cities and Society, vol. 54, 102003.

Xu, R, Alam, MS, Stark, C & Harrison, RM 2020, 'Behaviour of traffic emitted semi-volatile and intermediate volatility organic compounds within the urban atmosphere', Science of the Total Environment, vol. 720, 137470, pp. 1-11.

Dall'Osto, M, Santl-Temkiv, T, O'Dowd, C & Harrison, RM 2020, 'Enrichment of organic nitrogen in primary biological particles during advection over the North Atlantic', Atmospheric Environment, vol. 222, 117160, pp. 1-9.

Stacey, B, Harrison, RM & Pope, F 2020, 'Evaluation of ultrafine particle concentrations and size distributions at London Heathrow Airport', Atmospheric Environment, vol. 222, 117148.

Rivas, I, Beddows, D, Amato, F, Green, DC, Jarvi, L, Hueglin, C, Reche, C, Timonen, H, Fuller, GW, Niemi, JV, Perez, N, Aurela, M, Hopke, PK, Alastuey, A, Kulmala, M, Harrison, R, Querol, X & Kelly, FJ 2020, 'Source apportionment of particle number size distribution in urban background and traffic stations in four European cities', Environment International, vol. 135, 105345.

Targino, AC, Harrison, RM, Krecl, P, Glantz, P, de Lima, CH & Beddows, D 2019, 'Surface ozone climatology of South Eastern Brazil and the impact of biomass burning events', Journal of Environmental Management, vol. 252, 109645.

Brean, J, Harrison, R, Shi, Z, Beddows, D, Joe Acton, W, Hewitt, CN, Squires, FA & Lee, J 2019, 'Observations of highly oxidized molecules and particle nucleation in the atmosphere of Beijing', Atmospheric Chemistry and Physics, vol. 19, no. 23, pp. 14933-14947.

Zhong, J, Nikolova, I, Cai, X, MacKenzie, AR, Alam, S, Xu, R, Singh, A & Harrison, R 2019, 'Traffic-induced multicomponent ultrafine particle microphysics in the WRF v3.6.1 large eddy simulation model: general behaviour from idealised scenarios at the neighbourhood-scale', Atmospheric Environment.

Zeraati Rezaei, S, Alam, S, Xu, H, Beddows, D & Harrison, R 2019, 'Size-resolved physico-chemical characterization of diesel exhaust particles and efficiency of exhaust aftertreatment', Atmospheric Environment.

Alam, MS, Zeraati-Rezaei, S, Xu, H & Harrison, RM 2019, 'Characterization of gas and particulate phase organic emissions (C9-C37) from a diesel engine and the effect of abatement devices', Environmental Science and Technology, vol. 53, no. 19, pp. 11345-11352.

Alam, S, Nikolova, I, Singh, A, MacKenzie, AR & Harrison, R 2019, 'Experimental vapour pressures of eight n-Alkanes (C17, C18, C20, C22, C24, C26, C28 and C31) at ambient temperatures', Atmospheric Environment, vol. 213, pp. 739-745.

VU, VT, Shi, Z, Cheng, J, Zhang, Q, He, K, Wang, S & Harrison, R 2019, 'Assessing the impact of clean air action on air quality trends in Beijing using a machine learning technique', Atmospheric Chemistry and Physics, vol. 19, no. 17, pp. 11303-11314.

Lyu, R, Shi, Z, Alam, MS, Wu, X, Liu, D, Vu, VT, Stark, C, Fu, P, Feng, Y & Harrison, R 2019, 'Insight into the composition of organic compounds (≥C 6) in PM 2.5 in wintertime in Beijing, China', Atmospheric Chemistry and Physics, vol. 19, pp. 10865-10881 .

de Jesus, AL, Rahman, MM, Mazaheri, M, Thompson, H, Knibbs, LD, Jeong, C, Evans, G, Nei, W, Ding, A, Qiao, L, Li, L, Portin, H, Niemi, JV, Timonen, H, Luoma, K, Petäjä, T, Kulmala, M, Kowalski, M, Peters, A, Cyrys, J, Ferrero, L, Manigrasso, M, Avino, P, Buonano, G, Reche, C, Querol, X, Beddows, D, Harrison, RM, Sowlat, MH, Sioutas, C & Morawska, L 2019, 'Ultrafine particles and PM 2.5 in the air of cities around the world: are they representative of each other?', Environment International, vol. 129, pp. 118-135.

Shi, Z, Vu, T, Kotthaus, S, Harrison, RM, Grimmond, S, Yue, S, Zhu, T, Lee, J, Han, Y, Demuzere, M, Dunmore, RE, Ren, L, Liu, D, Wang, Y, Wild, O, Allan, J, Joe Acton, W, Barlow, J, Barratt, B, Beddows, D, Bloss, WJ, Calzolai, G, Carruthers, D, Carslaw, DC, Chan, Q, Chatzidiakou, L, Chen, Y, Crilley, L, Coe, H, Dai, T, Doherty, R, Duan, F, Fu, P, Ge, B, Ge, M, Guan, D, Hamilton, JF, He, K, Heal, M, Heard, D, Nicholas Hewitt, C, Hollaway, M, Hu, M, Ji, D, Jiang, X, Jones, R, Kalberer, M, Kelly, FJ, Kramer, L, Langford, B, Lin, C, Lewis, AC, Li, J, Li, W, Liu, H, Liu, J, Loh, M, Lu, K, Lucarelli, F, Mann, G, McFiggans, G, Miller, MR, Mills, G, Monk, P, Nemitz, E, O'Connor, F, Ouyang, B, Palmer, PI, Percival, C, Popoola, O, Reeves, C, Rickard, AR, Shao, L, Shi, G, Spracklen, D, Stevenson, D, Sun, Y, Sun, Z, Tao, S, Tong, S, Wang, Q, Wang, W, Wang, X, Wang, X, Wang, Z, Wei, L, Whalley, L, Wu, X, Wu, Z, Xie, P, Yang, F, Zhang, Q, Zhang, Y, Zhang, Y & Zheng, M 2019, 'Introduction to the special issue “In-depth study of air pollution sources and processes within Beijing and its surrounding region (APHH-Beijing)”', Atmospheric Chemistry and Physics, vol. 19, no. 11, pp. 7519-7546.

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Air pollution; environment and health; toxic chemicals

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air pollution; atmospheric chemistry; effects on health; traffic emissions