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Wintertime spatio-temporal variation of ultrafine particles in a Belgian city

Mishra, VK, Kumar, P, Van Poppel, M, Bleux, N, Frijns, E, Reggente, M, Berghmans, P, Int Panis, L and Samson, R (2012) Wintertime spatio-temporal variation of ultrafine particles in a Belgian city Science of The Total Environment, 431. 307 - 313. ISSN 0048-9697

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Abstract

Simultaneous measurements of ultrafine particles (UFPs) were carried out at four sampling locations situated within a 1 km2 grid area in a Belgian city, Borgerhout (Antwerp). All sampling sites had different orientation and height of buildings and dissimilar levels of anthropogenic activities (mainly traffic volume). The aims were to investigate: (i) the spatio-temporal variation of UFP within the area, (ii) the effect of wind direction with respect to the volume of traffic on UFP levels, and (iii) the spatial representativeness of the official monitoring station situated in the study area. All sampling sites followed similar diurnal patterns of UFP variation, but effects of local traffic emissions were evident. Wind direction also had a profound influence on UFP concentrations at certain sites. The results indicated a clear influence of local weather conditions and the more dominant effect of traffic volumes. Our analysis indicated that the regional air quality monitoring station represented the other sampling sites in the study area reasonably well; temporal patterns were found to be comparable though the absolute average concentrations showed differences of up to 35%.

Item Type: Article
Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Science of The Total Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Science of The Total Environment, 431(0), August 2012, DOI 10.1016/j.scitotenv.2012.05.054.
Uncontrolled Keywords: Ultrafine particles, Number and size distributions, Street canyon, Traffic emissions
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Divisions: Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Depositing User: Symplectic Elements
Date Deposited: 27 Jul 2012 09:05
Last Modified: 23 Sep 2013 19:34
URI: http://epubs.surrey.ac.uk/id/eprint/712734

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