Variation of PM2.5 concentrations in relation to street washing activities


Autoria(s): Karanasiou, Angeliki; Moreno, Teresa; Amato, Fulvio; Tobias, Aurelio; Boldo, E.; Linares, C.; Lumbreras Martin, Julio; Borge García, Rafael; Alastuey, Andres; Querol, Xavier
Data(s)

01/07/2012

Resumo

Several studies conducted in urban areas have pointed out that road dust resuspension contributes significantly to PM concentration levels. Street washing is one of the methods proposed to reduce resuspended road dust contributions to ambient PM concentrations. As resuspended particles are mainly found in the coarse mode, published studies investigating the effects of street washing have focused on PM10 size fraction. As the PM2.5 mass fraction of particles originating from mechanical abrasion processes may still be significant we conducted a study in order to evaluate the effects of street washing on the mitigation of resuspension of fine particles. The PM2.5 mass concentration data were examined and integrated with the occurrence of street washing activities. In addition, the effect of the meteorological variability, traffic flow and street washing activities, on ambient PM2.5 levels was valuated by means of a multivariate regression model. The results revealed that traffic low is the most important factor that controls PM2.5 hourly concentrations while street washing activities did not influence fine particle mass levels.

Formato

application/pdf

Identificador

http://oa.upm.es/16697/

Idioma(s)

eng

Publicador

E.T.S.I. Industriales (UPM)

Relação

http://oa.upm.es/16697/1/INVE_MEM_2012_136019.pdf

http://www.sciencedirect.com/science/article/pii/S1352231012001215

info:eu-repo/semantics/altIdentifier/doi/10.1016/j.atmosenv.2012.02.006

Direitos

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

info:eu-repo/semantics/openAccess

Fonte

Atmospheric Environment, ISSN 1352-2310, 2012-07, Vol. 54

Palavras-Chave #Medio Ambiente #Transporte
Tipo

info:eu-repo/semantics/article

Artículo

PeerReviewed