Light-Duty Vehicle Brake Emission Factors

Particulate Matter (PM) air pollution has been linked to major adverse health effects. Road transport still contributes significantly to ambient PM concentrations, but mainly due to the non-exhaust emissions from vehicles. For the first time worldwide, limits for non-exhaust emissions have been prop...

Full description

Bibliographic Details
Main Authors: Barouch Giechaskiel, Theodoros Grigoratos, Panagiota Dilara, Traianos Karageorgiou, Leonidas Ntziachristos, Zissis Samaras
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Atmosphere
Subjects:
Online Access:https://www.mdpi.com/2073-4433/15/1/97
_version_ 1797344695851941888
author Barouch Giechaskiel
Theodoros Grigoratos
Panagiota Dilara
Traianos Karageorgiou
Leonidas Ntziachristos
Zissis Samaras
author_facet Barouch Giechaskiel
Theodoros Grigoratos
Panagiota Dilara
Traianos Karageorgiou
Leonidas Ntziachristos
Zissis Samaras
author_sort Barouch Giechaskiel
collection DOAJ
description Particulate Matter (PM) air pollution has been linked to major adverse health effects. Road transport still contributes significantly to ambient PM concentrations, but mainly due to the non-exhaust emissions from vehicles. For the first time worldwide, limits for non-exhaust emissions have been proposed by the European Union for the upcoming Euro 7 step. For these reasons, interest in brake emissions has increased in the past few years. Realistic emission factors are necessary to accurately calculate the contribution of brake emissions to air pollution but also to estimate the emissions reduction potential of new or existing technologies and improved brake formulations. This paper reviews emission factors from light-duty vehicles reported in the literature, with a focus on those that followed the recently introduced Global Technical Regulation (GTR 24) methodology on brakes in light-duty vehicles. Reduction efficiencies of non-asbestos organic (NAO) pads, brake dust filters, ceramic discs, coated discs, and regenerative braking are also discussed. Finally, the emission factors are compared with roadside measurements of brake emissions and emission inventories worldwide. The findings of this study can be used as an input in emission inventories to estimate the contribution of brakes to air pollution.
first_indexed 2024-03-08T11:06:28Z
format Article
id doaj.art-890a19bc96df446b822661786dda7d17
institution Directory Open Access Journal
issn 2073-4433
language English
last_indexed 2024-03-08T11:06:28Z
publishDate 2024-01-01
publisher MDPI AG
record_format Article
series Atmosphere
spelling doaj.art-890a19bc96df446b822661786dda7d172024-01-26T15:02:23ZengMDPI AGAtmosphere2073-44332024-01-011519710.3390/atmos15010097Light-Duty Vehicle Brake Emission FactorsBarouch Giechaskiel0Theodoros Grigoratos1Panagiota Dilara2Traianos Karageorgiou3Leonidas Ntziachristos4Zissis Samaras5European Commission, Joint Research Centre (JRC), 21027 Ispra, ItalyEuropean Commission, Joint Research Centre (JRC), 21027 Ispra, ItalyEuropean Commission, DG-ENV, 1160 Brussels, BelgiumEmisia, 55535 Thessaloniki, GreeceMechanical Engineering Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceMechanical Engineering Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceParticulate Matter (PM) air pollution has been linked to major adverse health effects. Road transport still contributes significantly to ambient PM concentrations, but mainly due to the non-exhaust emissions from vehicles. For the first time worldwide, limits for non-exhaust emissions have been proposed by the European Union for the upcoming Euro 7 step. For these reasons, interest in brake emissions has increased in the past few years. Realistic emission factors are necessary to accurately calculate the contribution of brake emissions to air pollution but also to estimate the emissions reduction potential of new or existing technologies and improved brake formulations. This paper reviews emission factors from light-duty vehicles reported in the literature, with a focus on those that followed the recently introduced Global Technical Regulation (GTR 24) methodology on brakes in light-duty vehicles. Reduction efficiencies of non-asbestos organic (NAO) pads, brake dust filters, ceramic discs, coated discs, and regenerative braking are also discussed. Finally, the emission factors are compared with roadside measurements of brake emissions and emission inventories worldwide. The findings of this study can be used as an input in emission inventories to estimate the contribution of brakes to air pollution.https://www.mdpi.com/2073-4433/15/1/97non-exhaustEuro 7air pollutionbrake padsdiscfilters
spellingShingle Barouch Giechaskiel
Theodoros Grigoratos
Panagiota Dilara
Traianos Karageorgiou
Leonidas Ntziachristos
Zissis Samaras
Light-Duty Vehicle Brake Emission Factors
Atmosphere
non-exhaust
Euro 7
air pollution
brake pads
disc
filters
title Light-Duty Vehicle Brake Emission Factors
title_full Light-Duty Vehicle Brake Emission Factors
title_fullStr Light-Duty Vehicle Brake Emission Factors
title_full_unstemmed Light-Duty Vehicle Brake Emission Factors
title_short Light-Duty Vehicle Brake Emission Factors
title_sort light duty vehicle brake emission factors
topic non-exhaust
Euro 7
air pollution
brake pads
disc
filters
url https://www.mdpi.com/2073-4433/15/1/97
work_keys_str_mv AT barouchgiechaskiel lightdutyvehiclebrakeemissionfactors
AT theodorosgrigoratos lightdutyvehiclebrakeemissionfactors
AT panagiotadilara lightdutyvehiclebrakeemissionfactors
AT traianoskarageorgiou lightdutyvehiclebrakeemissionfactors
AT leonidasntziachristos lightdutyvehiclebrakeemissionfactors
AT zississamaras lightdutyvehiclebrakeemissionfactors