Non-exhaust particle emissions under various driving conditions: Implications for sustainable mobility
| Autor: | B. Muresan, S. Khardi, Karine Deboudt, Marc Fourmentin, A. Beji, L. Lumière, Pascal Flament |
|---|---|
| Přispěvatelé: | Ecosystèmes littoraux et côtiers (ELICO), Centre National de la Recherche Scientifique (CNRS)-Université de Lille, Sciences et Technologies-Université du Littoral Côte d'Opale (ULCO), IFFSTAR, Laboratoire de Physico-Chimie de l'Atmosphère (LPCA), Université du Littoral Côte d'Opale (ULCO), Université Lille Nord de France (COMUE), IFSTTAR, Laboratoire Transports et Environnement (IFSTTAR/AME/LTE), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Université de Lyon-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Université de Lyon |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Pollution
020209 energy media_common.quotation_subject [SDE.MCG]Environmental Sciences/Global Changes Transportation 02 engineering and technology Brake pad [CHIM.ANAL]Chemical Sciences/Analytical chemistry 0502 economics and business 11. Sustainability Ultrafine particle 0202 electrical engineering electronic engineering information engineering Air quality index General Environmental Science Civil and Structural Engineering media_common [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere 050210 logistics & transportation Dynamometer 05 social sciences Environmental engineering Particulates 13. Climate action Particle Environmental science Tread |
| Zdroj: | Transportation Research Part D: Transport and Environment Transportation Research Part D: Transport and Environment, Elsevier, 2020, 81, pp.102290. ⟨10.1016/j.trd.2020.102290⟩ |
| ISSN: | 1361-9209 |
| Popis: | International audience; Non-exhaust particle (NEP) emissions from road traffic contribute significantly to Particulate Matter (PM) pollution in urban areas. The primary objective herein is to develop the knowledge required to move toward more sustainable mobility. NEP emissions are studied by means of complementary experiments on chassis dynamometers, on test tracks and at the roadside. Laboratory tests demonstrate that brake wear particles (BWP) emissions can change with braking force and frequency. A brake pad temperature threshold exists, above which the rate of ultrafine particle emissions is quite high. Below this threshold, the BWP emissions are dominant in the accumulation and coarse modes. Test track measurements have demonstrated that tire-road contact particle (TRCP) emissions considerably modify the atmospheric PM background especially for the supermicron fraction. Their number size distribution highlighted an ultrafine and accumulation modes centered at about 40 nm and 200 nm, respectively. The TRCP level increases with vehicle speed and during the acceleration and deceleration phases. Roadside measurements in the urban environment confirm the presence of NEP in significant proportions, in both the accumulation and coarse modes. The chemical composition of NEP differs depending on the size mode: BWP mainly stem from the degradation of brake pad lining materials, while TRCP are a mixture of tire tread wear and re-suspended dust. The presence of Fe-rich particles nevertheless serves as a good indicator of the NEP contribution to PM at the roadside. Lastly, in considering the parameters influencing NEP emissions, a series of recommendations are offered in order to achieve a more sustainable mobility. |
| Databáze: | OpenAIRE |
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