Articles | Volume 18, issue 23
Research article
05 Dec 2018
Research article |  | 05 Dec 2018

The influence of particle composition upon the evolution of urban ultrafine diesel particles on the neighbourhood scale

Irina Nikolova, Xiaoming Cai, Mohammed Salim Alam, Soheil Zeraati-Rezaei, Jian Zhong, A. Rob MacKenzie, and Roy M. Harrison

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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Cited articles

Alam, M. S, Rezaei, S. Z., Stark, C. P., Liang, Z., Xu, H. M., and Harrison, R. M.: The characterisation of diesel exhaust particles – composition, size distribution and partitioning, Faraday Discuss., 189, 69–84, 2016. 
Alam, M. S., Zeraati-Rezaei, S., Liang, Z., Stark, C., Xu, H., MacKenzie, A. R., and Harrison, R. M.: Mapping and quantifying isomer sets of hydrocarbons ( C12) in diesel exhaust, lubricating oil and diesel fuel samples using GC × GC-ToF-MS, Atmos. Meas. Tech., 11, 3047–3058,, 2018. 
Allen, L. R., Donahue, N. M., Shrivastava, M. K., Weitkamp, E. A., Sage, A. M., Grieshop, A. P., Lane, T. E., Pierce, J. R., and Pandis, S. N.: Rethinking organic aerosols: semivolatile emissions and photochemical aging, Science, 315, 1259–1262, 2007. 
Atkinson, R. W., Fuller, G. W., Anderson, H. R., Harrison, R. M., and Armstrong, B.: Urban ambient particle metrics and health: a time-series analysis, Epidemiology, 21, 501–511, 2010. 
Biswas, S., Ntziachristos, L., Moore, K. F., and Sioutas, C.: Particle volatility in the vicinity of a freeway with heavy-duty diesel traffic, Atmos. Environ., 41, 3479–3493, 2007. 
Short summary
There are increasing health concerns about the smallest airborne particles found in polluted urban atmospheres. These particles are composed of a mixture of oil-derived substances, but the exact composition is not known and is likely to be very complicated. We provide a way to compute how these particles change as their chemical make-up changes. We also outline the range of particle compositions that reproduce the behaviour of the smallest particles seen in field measurements.
Final-revised paper