Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/1067
Título: Air pollution at an urban traffic tunnel in Lisbon, Portugal
Autor: Almeida-Silva, Marina
Canha, Nuno
Freitas, Maria do Carmo
Dung, H. M.
Dionísio, I.
Palavras-chave: Saúde ambiental
Poluição do ar
Meio urbano
Túnel
Portugal
Região de Lisboa e Vale do Tejo
Environmental health
Air pollution
Air pollutants
Dust
Environmental monitoring
Neutron activation analysis
Vehicle emissions
Data: Nov-2011
Editora: Elsevier
Citação: Almeida-Silva M, Canha N, Freitas MC, Dung HM, Dionísio I. Air pollution at an urban traffic tunnel in Lisbon, Portugal. Appl Radiat Isot. 2011;69(11):1586-91.
Resumo: In this study, the results of chemical concentrations inside and outside of a Lisbon (Portugal) traffic tunnel were compared, during one week. They were obtained by Instrumental Neutron Activation Analysis (INAA). The tunnel values largely exceed the Air Ambient legislated values and the Pearson Correlations Coefficients point out to soil re-suspension/dispersed road dust (As, Ce, Eu, Hf, Fe, Mo, Sc, Zn), traffic-markers (Ba, Cr), tire wear (Cr, Zn), break wear (Fe, Zn, Ba, Cu, Sb), exhaust and motor oil (Zn) and sea-spray (Br, Na). On all days these elements inside the tunnel were more enriched than outside; significant statistical differences were found for Co (p=0.005), Br (p=0.008), Zn (p=0.01) and Sb (p=0.005), while enrichment factors of As and Sc are statistically identical. The highest values were found for As, Br, Zn and Sb, for both inside and outside the tunnel.
Peer review: yes
URI: http://hdl.handle.net/10400.21/1067
ISSN: 0969-8043
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0969804311000285
Aparece nas colecções:ESTeSL - Artigos

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