English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/130897
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Detection of brake wear aerosols by aerosol time-of-flight mass spectrometry

AutorBeddows, D.C.S.; Dall'Osto, Manuel ; Olatunbosun, Oluremi A.; Harrison, Roy M.
Palabras claveATOFMS
Single particles
Traffic emissions
Resuspension
Brake dust
Fecha de publicaciónmar-2016
EditorElsevier
CitaciónAtmospheric Environment 129: 167-175 (2016)
ResumenBrake dust particles were characterised using an Aerosol Time-of-Flight Mass Spectrometer (ATOFMS) operated using two inlet configurations, namely the aerodynamic lens (AFL) inlet and countersunk nozzle inlet. Laboratory studies show that dust particles are characterised by mass spectra containing ions deriving from Fe and Ba and although highly correlated to each other, the Fe and Ba signals were mostly detected using the nozzle inlet with relatively high laser desorption energies. When using the AFL, only [56Fe] and [−88FeO2] ions were observed in brake dust spectra generated using lower laser desorption pulse energies, and only above 0.75 mJ was the [138Ba] ion detected. When used with the preferred nozzle inlet configuration, the [−88FeO2] peak was considered to be the more reliable tracer peak, because it is not present in other types of dust (mineral, tyre, Saharan etc). As shown by the comparison with ambient data from a number of locations, the aerodynamic lens is not as efficient in detecting brake wear particles, with less than 1% of sampled particles attributed to brake wear. Five field campaigns within Birmingham (background, roadside (3) and road tunnel) used the nozzle inlet and showed that dust particles (crustal and road) accounted for between 3.1 and 65.9% of the particles detected, with the remaining particles being made up from varying percentages of other constituents
Descripción9 pages, 3 figures, 1 table, supplementary data http://dx.doi.org/10.1016/j.atmosenv.2016.01.018
Versión del editorhttp://dx.doi.org/10.1016/j.atmosenv.2016.01.018
URIhttp://hdl.handle.net/10261/130897
DOI10.1016/j.atmosenv.2016.01.018
Identificadoresdoi: 10.1016/j.atmosenv.2016.01.018
issn: 1352-2310
Aparece en las colecciones: (ICM) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.