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Título: | Vehicle-derived emissions and pollution on the road autovia 2 investigated by rock-magnetic parameters: A case study from Argentina |
Autor: | Marié, Debora C.; Chaparro, Marcos A. E.; Gogorza, Claudia S. G.; Navas Izquierdo, Ana CSIC ORCID ; Sinito, Ana M. | Palabras clave: | magnetic susceptibility pollution roadside soils toxic trace metals vehicle emissions |
Fecha de publicación: | ene-2010 | Editor: | Springer Nature | Citación: | Marié DC, Chaparro MAE, Gogorza CSG, Navas A, Sinito AM. Vehicle-derived emissions and pollution on the road autovia 2 investigated by rock-magnetic parameters: A case study from Argentina. Studia Geophysica et Geodaetica 54 (1): 135-152 (2010) | Resumen: | In this work, we carried out a preliminary study of traffic-derived pollutants from primary sources (vehicles), and on roads (paved area), road borders and surroundings areas. The study is focussed on the identification, distribution and concentration of pollutants and magnetic carriers. Magnetic parameters and their analyses suggest that the magnetic signal of vehicle-derived emissions is controlled by a magnetite-like phase. Magnetic grain size estimations reveal the presence of fine particles (0.1–5 μm) that can be inhaled and therefore are dangerous to human health. Magnetic susceptibility results (about 175 × 10−5 SI) show a higher magnetic concentration — magnetic enhancement — in the central area of the tollbooth line that is related to higher traffic. In addition, magnetic susceptibility was computed on several roadside soils along a length of 120 km and used to generate a 2-D contour map, which shows higher magnetic values (100–200 10−5 SI) near the edge of the road. The observed distribution of magnetic values indicates that magnetic particles emitted by vehicles are accumulated and mainly concentrated within a distance of several meters (1–2 m) from the edge of the road. In consequence, the magnetic susceptibility parameter seems to be a suitable indicator of traffic-related pollution. Non-magnetic studies show an enrichment of some trace elements, such as Ba, Cr, Cu, Zn and Pb, that are associated with traffic pollution. Furthermore, statistical correlations between the content of toxic trace metals and magnetic variables support the use of magnetic parameters as potential proxies for traffic-related pollution in this study area. | Descripción: | 35 Pag., 7 Fig., 1 Tabl. The definitive version is available at: www.springerlink.com | Versión del editor: | http://dx.doi.org/10.1007/s11200-010-0007-9 | URI: | http://hdl.handle.net/10261/24513 | DOI: | 10.1007/s11200-010-0007-9 | ISSN: | 0039-3169 | E-ISSN: | 1573-1626 |
Aparece en las colecciones: | (EEAD) Artículos |
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NavasA_StudGepphGeod_2010.pdf | 1,08 MB | Adobe PDF | Visualizar/Abrir |
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