Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/48729
Título: Metallic species in atmospheric particulate matter in Las Palmas de Gran Canaria
Autores/as: Cancio, J. López
Castellano, A. Vera 
Hernández, M. Chaar 
Bethencourt, R. García
Ortega, E. Macías
Palabras clave: Balance Source Apportionment
Air-Pollution
Heavy-Metals
Urban Area
Daily Mortality, et al.
Fecha de publicación: 2008
Editor/a: 0304-3894
Publicación seriada: Journal of Hazardous Materials 
Resumen: In this work, we quantified the total. water-soluble and insoluble fractions of 12 metallic species (Na, Ca, K, Mg, Fe, Zn, Cr, Ni, Cu, Cd, Pb and Mn) present in total Suspended particulates (TSP) in an urban area with heavy traffic (about 80 000 vehicles/day) of Las Palmas de Gran Canaria (Canary Islands). Experimental measurements were made from July to December 2003 on a total of 42 samples (7 per month). Particulate matter (TSP) was collected in fiber filters and high volume samplers. PM10 levels were estimated assuming the PM10 fraction is about 70% of all TSP. Total fractions was determined gravimetrically. Water-soluble fraction was extracted by sonication. Concentrations of metallic elements were analyzed by flame atomic absorption spectrophotometer. Temporal changes in the concentrations of the target elements were examined and a multivariate approach used to identify the primary sources for each species. Mean value for TSP is 71.92 mu g/m(3). The water-soluble fraction consisted mainly of Na, Ca, Mg, and K. The insoluble fraction contained higher concentrations of all elements than the soluble except Na. In the water-soluble fraction, Na, K, Ca and Mg were found to come mainly from natural sources; Cr, Pb, Cd, Ni, Zn and Cu from anthropogenic sources. (C) 2008 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/10553/48729
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2008.03.026
Fuente: Journal of Hazardous Materials[ISSN 0304-3894],v. 160, p. 521-528
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