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Flux Estimation of Fugitive Particulate Matter Emissions from Loose Calcisols at Construction Sites

Hassan, HA, Kumar, P and Kakosimos, KE (2016) Flux Estimation of Fugitive Particulate Matter Emissions from Loose Calcisols at Construction Sites Atmospheric Environment, 141. pp. 96-105.

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Abstract

A major source of airborne pollution in arid and semi-arid environments (i.e. North Africa, Middle East, Central Asia, and Australia) is the fugitive particulate matter (fPM), which is a frequent product of wind erosion. However, accurate determination of fPM is an ongoing scientific challenge. The objective of this study is to examine fPM emissions from the loose Calcisols (i.e. soils with a substantial accumulation of secondary carbonates), owing to construction activities that can be frequently seen nowadays in arid urbanizing regions such as the Middle East. A two months field campaign was conducted at a construction site, at rest, within the city of Doha (Qatar) to measure number concentrations of PM over a size range of 0.25–32 μm using light scattering based monitoring stations. The fPM emission fluxes were calculated using the Fugitive Dust Model (FDM) in an iterative manner and were fitted to a power function, which expresses the wind velocity dependence. The power factors were estimated as 1.87, 1.65, 2.70 and 2.06 for the four different size classes of particles ≤2.5, 2.5–6, 6–10 and ≤10 μm, respectively. Fitted power function was considered acceptable given that adjusted R2 values varied from 0.13 for the smaller particles and up to 0.69 for the larger ones. These power factors are in the same range of those reported in the literature for similar sources. The outcome of this study is expected to contribute to the improvement of PM emission inventories by focusing on an overlooked but significant pollution source, especially in dry and arid regions, and often located very close to residential areas and sensitive population groups. Further campaigns are recommended to reduce the uncertainty and include more fPM sources (e.g. earthworks) and other types of soil.

Item Type: Article
Subjects : Environmental Engineering
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
AuthorsEmailORCID
Hassan, HAUNSPECIFIEDUNSPECIFIED
Kumar, PUNSPECIFIEDUNSPECIFIED
Kakosimos, KEUNSPECIFIEDUNSPECIFIED
Date : September 2016
Identification Number : 10.1016/j.atmosenv.2016.06.054
Copyright Disclaimer : © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 06 Jul 2016 15:18
Last Modified : 06 Jul 2016 15:18
URI: http://epubs.surrey.ac.uk/id/eprint/811136

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