Compartir
Título
Aethalometer measurements in a road tunnel: A step forward in the characterization of black carbon emissions from traffic
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Science of the Total Environment
Datos de la obra
Blanco-Alegre, C., Calvo, A. I., Alves, C., Fialho, P., Nunes, T., Gomes, J., Castro, A., Oduber, F., Coz, E., and Fraile, R. (2020). Aethalometer measurements in a road tunnel: A step forward in the characterization of black carbon emissions from traffic. The Science of the Total Environment, 703, Article e135483. https://doi.org/10.1016/j.scitotenv.2019.135483
Editor
Elsevier
Fecha
2020-02-10
ISSN
0048-9697
Résumé
[EN] A sampling campaign was conducted in the Liberdade Avenue tunnel (Braga, Portugal) during a week (with 56,000 vehicles) to monitor black carbon (eBC-equivalent black carbon) by means of an Aethalometer AE-31, and gaseous pollutants (CO2, CO, NOx). Inside the tunnel, the mean eBC mass concentration was 21 ± 10 μg m−3, reaching a maximum hourly value of 49.0 μg m−3. An hourly and weekday-weekend study was carried out. Regarding the Absorption Ångström exponent (AAE), a mean value of 0.97 ± 0.10 was obtained, for a source of practically pure traffic. There was a positive significant correlation between eBC and the number of light vehicles (r = 0.47; p < 0.001) and between eBC and the gaseous emissions: CO (r = 0.67; p < 0.001), CO2 (r = 0.71; p < 0.001), NO (r = 0.63; p < 0.001) and NO2 (r = 0.70; p < 0.001). The mean black carbon emission factors (EFBC) inside the tunnel were 0.31 ± 0.08 g (kg fuel)−1 and 0.11 ± 0.08 mg veh−1 km−1, similar to those found in other studies for gasoline and diesel vehicles in road tunnels
Materia
Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grantAgreement/EC/FP7/312029/EU
- info:eu-repo/grantAgreement/MINECO/Programa Estatal de I+D+I Orientada a los Retos de la Sociedad/CGL2014-52556-R/ES/INFLUENCIA DE LA PRECIPITACION EN LA CONCENTRACION DE MATERIAL PARTICULADO Y DE POLEN: CONSECUENCIAS CLIMATICAS Y CLINICAS/AERORAIN
- info:eu-repo/grantAgreement/FCT//PTDC-AAC-AMB-117956-2010/Source apportionment of URBan Emissions of primary particulate matter/URBE
URI
DOI
Versión del editor
Aparece en las colecciones
- Untitled [5104]
Fichier(s) constituant ce document
Tamaño:
1.968
xmlui.dri2xhtml.METS-1.0.size-megabytes
Formato:
Adobe PDF