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Portable X-ray fluorescence as a rapid technique for surveying elemental distributions in soil
journal contribution
posted on 2017-09-29, 11:33 authored by Tanja RaduTanja Radu, Simon Gallagher, Brian Byrne, Paul Harris, Seamus Coveney, Stephen McCarron, Timothy McCarthy, Dermot DiamondCase studies from two sites demonstrate how concentration distributions of hazardous contaminants can be rapidly measured and visualized using portable XRF (X-ray fluorescence) coupled with geostatistical interpolation tools. In this study, lead is used as an exemplar due to its well-known detrimental effect on human health through long-term exposure. A portable Thermo Scientific NITON X-ray fluorescence (XRF) instrument was used for real-time in-situ concentration measurements, which were linked to GPS coordinates of the sampling locations. A 52 point mixed sampling density survey was performed at a site near Maynooth, Co. Kildare, and a second 58 survey undertaken at Dublin City University (DCU). At Maynooth, high concentrations of Pb (above 110 mg/kg) were found close to the site where a local canal meets a road. At the DCU site, results indicate high Pb concentrations (above 160 mg/kg) near a busy main road. Geostatistical techniques were used to generate concentration prediction and critical threshold contour surfaces for both sites. Linked with GPS coordinates for each sampling location, this technology enables the distribution of multiple elements to be mapped over wide areas in a relatively short time. Supplemental materials are available for this article. Go to the publisher's online edition of Spectroscopy Letters to view the supplemental file.
History
School
- Architecture, Building and Civil Engineering
Published in
Spectroscopy LettersVolume
46Issue
7Pages
516 - 526Citation
RADU, T. ... et al., 2013. Portable X-ray fluorescence as a rapid technique for surveying elemental distributions in soil. Spectroscopy Letters, 46 (7), pp.516-526.Publisher
© Taylor and FrancisVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2013ISSN
0038-7010eISSN
1532-2289Publisher version
Language
- en