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Properties and toxicological effects of particles from the interaction between tyres, road pavement and winter traction material
Swedish National Road and Transport Research Institute .
Swedish National Road and Transport Research Institute .
Lund University.
Lund University.
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2008 (English)In: Science of the Total Environment, ISSN 0048-9697, Vol. 393, no 2-3, 226-240 p.Article in journal (Refereed) Published
Abstract [en]

In regions where studded tyres and traction material are used during winter, e.g. the Nordic countries, northern part of USA, Canada, and Japan, mechanically generated particles from traffic is the main reason for high particle concentrations in busy street- and road environments. In many Nordic municipalities the European environmental quality standard for inhalable particles (PM10) is exceeded due to these particles. In this study, particles from the wear of studded and studless friction tyres on two pavements and traction sanding were generated using a road simulator. The particles were characterized using particle sizers, PIXE and electron microscopy. Cell studies were conducted on particles sampled from the tests with studded tyres and compared with street environment, diesel exhaust and subway PM10, respectively. The results show that in the road simulator, where resuspension is minimised, studded tyres produce tens of times more particles than friction tyres. Chemical analysis of the sampled particles shows that the generated wear particles consists almost entirely of minerals from the pavement stone material, but also that S is enriched for the sub-micron particles and that Zn is enriched for friction tyres for all particles sizes. The chemical data can be used for source identification and apportionment in urban aerosol studies. A mode of ultra-fine particles was also present and is hypothesised to originate in the tyres. Further, traction material properties affect PM10 emission. The inflammatory potential of the particles from wear of pavements seems to depend on type of pavement and can be at least as potent as diesel exhaust particles. The results implies that there is a need and a good potential to reduce particle emission from pavement wear and winter time road and street operation by adjusting both studded tyre use as well as pavement and traction material properties.

Place, publisher, year, edition, pages
Institutionen för klinisk och experimentell medicin , 2008. Vol. 393, no 2-3, 226-240 p.
Keyword [en]
PM10, PARTICLES, TYRES, TRACTION MATERIAL, ROAD SIMULATOR, CELL STUDY, ROAD WEAR, TRAFFIC EMISSION
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-11344DOI: 10.1016/j.scitotenv.2007.12.030OAI: oai:DiVA.org:liu-11344DiVA: diva2:17764
Note
Original publication: Mats Gustafsson, Göran Blomqvist, Anders Gudmundsson, Andreas Dahl, Erik Swietlicki, Mats Boghard, John Lindbom, Anders Ljungman, Properties and toxicological effects of particles from the interaction between tyres, road pavement and winter traction material, 2008, Science of the Total Environment, (393), 2-3, 226-240. http://dx.doi.org/10.1016/j.scitotenv.2007.12.030. Copyright: Elsevier B.V., http://www.elsevier.com/Available from: 2008-04-04 Created: 2008-04-04 Last updated: 2009-04-28

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Lindbom, JohnLjungman, Anders

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