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The physical factors affecting heavy metals accumulated in the sediment deposited on road surfaces in dry weather: a review

Abstract: The main objective of this review is to identify and analyse physical factors (PF) involved in the heavy metal accumulation phenomenon in the road-deposited sediment (RDS) in dry weather. Electronic databases were used to establish an order of prevalence by establishing quartiles (Q-citation frequency) for the PF identified. The results show that the eleven PF can most likely be classified into three categories: climatic-anthropogenic-morphometric. The studies most frequently referenced land use (Q1), rainfall (Q2), particle size (Q2) and vehicles (Q3) as key PF. There is a similar behaviour between the concentrations of Zn-Pb-Cu associated with the RDS in dry weather and the dissolved fraction washed from the surface in road runoff. The size fraction <250 µm is representative of RDS to characterize the metals. The review expands knowledge about the influences of the PF in the processes of deposition-suspension-interception-removal of the metals load in road environments.

 Autoría: Zafra C., Temprano J., Tejero I.,

 Fuente: Urban Water Journal, 2017, 14(6), 639?649

 Editorial: Taylor & Francis

 Año de publicación: 2017

 Nº de páginas: 11

 Tipo de publicación: Artículo de Revista

 DOI: 10.1080/1573062X.2016.1223320

 ISSN: 1573-062X,1744-9006,1462-0758 1878

 Url de la publicación: http://www.tandfonline.com/doi/full/10.1080/1573062X.2016.1223320?scroll=top&needAccess=true

Autoría

ZAFRA, CARLOS

JUAN IGNACIO TEJERO MONZON