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 language | English |
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Pages (from-to) | 6813-6835 |
Number of pages | 23 |
Journal | Environmental Science and Technology |
Volume | 56 |
Issue number | 11 |
Early online date | 25 May 2022 |
DOIs | |
Publication status | Published - 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