Scopus: 2 cites, Google Scholar: cites,
Effects of Road Dust Particle Size on Mineralogy, Chemical Bulk Content, Pollution and Health Risk Analyses
Navarro Ciurana, Didac (Universitat Autònoma de Barcelona. Departament de Geologia)
Corbella i Cordomí, Mercè (Universitat Autònoma de Barcelona. Departament de Geologia)
Meroño, Daniel (Universitat Autònoma de Barcelona. Departament de Geologia)

Data: 2023
Resum: Because of the rising environmental and health concerns associated with atmospheric pollution caused by potentially toxic elements (PTEs), several road dust studies have been performed across the world in recent decades. This paper illustrates the effects of particle size on the PTE contents, mineralogical composition, environmental pollution and health risk assessments in road dust from Barcelona (Spain). The samples were sieved into five size fractions ranging from <45 to 500-800 µm. Although the major mineral contents (tectosilicates, phyllosilicates, and carbonates) were profuse in all fractions, the identified inhalable PTE particles (e. g. , Fe, Cr, Cu, Zn, Ni, and REE), with size < 10 µm, were more pervasive in the finest fraction (<45 μm). This is consistent with the concentrations measured: the finest fractions were richer in PTEs than the coarser ones, resulting in a direct correlation with the enrichment factor (EF), geo-accumulation (I), and non-carcinogenic (HI) and carcinogenic (CRI) values. I and EF values can be appropriate tracers for some common elements (e. g. , Zn, Sb, Sn, Cu, and Cr), but they do not seem adequate for anthropogenic particles accumulated at concentrations similar to the geogenic background. Overall, the HI and CRI values obtained in Barcelona were acceptable, reflecting no serious health impacts in the study area, except for Cr. Our results suggest that fine dust particles are a more suitable fraction to conduct pollution and health risk assessments than coarser ones, although the EF, I, HI, and CRI threshold values should be redefined in the future to include all emergent pollutants as well. In summary, monitoring programs should include at least the road dust evaluation of <45 µm particles, which can be performed with a simple sieving method, which is both time- and cost-effective.
Ajuts: Agencia Estatal de Investigación PID2019-109018RB-I00
Agència de Gestió d'Ajuts Universitaris i de Recerca 2022/SGR-00308
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: Road dust ; Size fractions ; Potentially toxic elements ; Pollution ; Health risk
Publicat a: International journal of environmental research and public health, Vol. 20, Issue 17 (August 2023) , art. 6655, ISSN 1660-4601

DOI: 10.3390/ijerph20176655
PMID: 37681795


26 p, 11.0 MB

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 Registre creat el 2023-09-27, darrera modificació el 2024-05-04



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