A review of road traffic-derived non-exhaust particles: emissions, physicochemical characteristics, health risks, and mitigation measures

Julia C. Fussell*, Meredith Franklin, David C. Green, Mats Gustafsson, Roy M. Harrison, William Hicks, Frank J. Kelly, Franceska Kishta, Mark R. Miller, Ian S. Mudway, Farzan Oroumiyeh, Liza Selley, Meng Wang, Yifang Zhu

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)
144 Downloads (Pure)

Abstract

Implementation of regulatory standards has reduced exhaust emissions of particulate matter from road traffic substantially in the developed world. However, nonexhaust particle emissions arising from the wear of brakes, tires, and the road surface, together with the resuspension of road dust, are unregulated and exceed exhaust emissions in many jurisdictions. While knowledge of the sources of nonexhaust particles is fairly good, source-specific measurements of airborne concentrations are few, and studies of the toxicology and epidemiology do not give a clear picture of the health risk posed. This paper reviews the current state of knowledge, with a strong focus on health-related research, highlighting areas where further research is an essential prerequisite for developing focused policy responses to nonexhaust particles.

Original languageEnglish
Pages (from-to)6813-6835
Number of pages23
JournalEnvironmental Science and Technology
Volume56
Issue number11
Early online date25 May 2022
DOIs
Publication statusPublished - 7 Jun 2022

Bibliographical note

Funding Information:
M.F. received funding from the Health Effects Institute. J.F., D.G., F.K., and I.M. received funding from the National Institute for Health Research (NIHR) Health Protection Research Unit in Environmental Exposures and Health, a partnership between the UK Health Security Agency and Imperial College and the MRC Centre for Environment and Health, which is funded by the Medical Research Council (MR/S0196669/1, 2019–2024). J.F., D.G., W.H., F.K,. and .I.M received infrastructure support from the NIHR Imperial Biomedical Research Centre (RDR03). J.F. received funding from the Wellcome Trust (209376/Z/17/Z). M.G. received funding from the Swedish Transport Administration and NordFoU. W.H. received funding from NERC and Robert Bosch GmbH (NE/S013342/2). D.G. and W.H. received funding from the NERC OSCA (NE/T001909/2). M.R.M. received funding from the British Heart Foundation (CH/09/002). L.S. received funding from the MRC (PUAG019). M.W. received funding from the National Institutes of Health of the United States (ES031986).

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

Keywords

  • exposure assessment
  • health effects
  • mitigation
  • nonexhaust emissions
  • road traffic
  • toxicity

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry

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