Applicability of radon emanometry in lithologically discontinuous sites contaminated by organic chemicals

Miguel García, Eduardo de and Barrio Parra, Fernando and Elio Medina, Javier de and Izquierdo Díaz, Miguel and García González, Jeronimo Emilio and Mazadiego Martínez, Luis Felipe and Medina Ferro, Rafael (2018). Applicability of radon emanometry in lithologically discontinuous sites contaminated by organic chemicals. "Environmental science and pollution research", v. 25 (n. 20); pp. 20255-20263. ISSN 0944-1344. https://doi.org/10.1007/s11356-018-2372-9.

Description

Title: Applicability of radon emanometry in lithologically discontinuous sites contaminated by organic chemicals
Author/s:
  • Miguel García, Eduardo de
  • Barrio Parra, Fernando
  • Elio Medina, Javier de
  • Izquierdo Díaz, Miguel
  • García González, Jeronimo Emilio
  • Mazadiego Martínez, Luis Felipe
  • Medina Ferro, Rafael
Item Type: Article
Título de Revista/Publicación: Environmental science and pollution research
Date: 2018
ISSN: 0944-1344
Volume: 25
Subjects:
Freetext Keywords: Non-aqueous phase liquids; Radon; Subsurface contamination; Soil-air; Spatial analysis
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Energía y Combustibles
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The applicability of radon (222Rn) measurements to delineate non-aqueous phase liquids (NAPL) contamination in subsoil is discussed at a site with lithological discontinuities through a blind test. Three alpha spectroscopy monitors were used to measure radon in soil air in a 25,000-m2 area, following a regular sampling design with a 20-m2 grid. Repeatability and reproducibility of the results were assessed by means of duplicate measurements in six sampling positions. Furthermore, three points not affected by oil spills were sampled to estimate radon background concentration in soil air. Data histograms, Q-Q plots, variograms, and cluster analysis allowed to recognize two data populations, associated with the possible path of a fault and a lithological discontinuity. Even though the concentration of radon in soil air was dominated by this discontinuity, the characterization of the background emanation in each lithological unit allowed to distinguish areas potentially affected by NAPL, thus justifying the application of radon emanometry as a screening technique for the delineation of NAPL plumes in sites with lithological discontinuities.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainCTM2016-77151-C2-2-RCAREDENSE/DENSOILUnspecifiedUnspecified
Madrid Regional GovernmentS2013/MAE-2739CARESOIL–CMUnspecifiedCaracterización, remediación, modelización y evaluación del riesgo de suelos contaminados

More information

Item ID: 54522
DC Identifier: http://oa.upm.es/54522/
OAI Identifier: oai:oa.upm.es:54522
DOI: 10.1007/s11356-018-2372-9
Official URL: https://link.springer.com/article/10.1007%2Fs11356-018-2372-9
Deposited by: Memoria Investigacion
Deposited on: 10 Apr 2019 10:05
Last Modified: 24 Apr 2019 10:01
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