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

Abstract / Description of output

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
JournalEnvironmental Science and Technology
Volume56
Issue number11
Early online date25 May 2022
DOIs
Publication statusE-pub ahead of print - 25 May 2022

Keywords / Materials (for Non-textual outputs)

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

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