{rfName}
CO

Indexed in

License and Use

Icono OpenAccess

Citations

90

Altmetrics

Analysis of institutional authors

Ortega, M. F.AuthorMazadiego, L. F.Author

Share

June 9, 2019
Publications
>
Article
Sí

CO2 and Rn degassing from the natural analog of Campo de Calatrava (Spain): Implications for monitoring of CO2 storage sites

Publicated to: International Journal of Greenhouse Gas Control. 32 1-14 - 2015-01-01 32(), DOI: 10.1016/j.ijggc.2014.10.014

Authors:

Elío, J; Ortega, MF; Nisi, B; Mazadiego, LF; Vaselli, O; Caballero, J; Grandia, F
[+]

Affiliations

AMPHOS21, Barcelona, Spain - Author
CNR, IGG, Inst Geosci & Earth Resources, Florence, Italy - Author
CNR, IGG, Inst Geosci & Earth Resources, I-56100 Pisa, Italy - Author
Dept Earth Sci, Florence, Italy - Author
Estudios Ambientales. Universidad Politécnica de Madrid - Author
Univ Politecn Madrid, Madrid, Spain - Author
See more

Abstract

Natural analogs offer a valuable opportunity to investigate the long-term impacts associated with the potential leakage in geological storage of CO2. Degassing of CO2 and radon isotopes (Rn-222-Rn-220) from soil, gas vents and thermal water discharges was investigated in the natural analog of Campo de Calatrava Volcanic Field (CCVF; Central Spain) to determine the CO2-Rn relationships and to assess the role of CO2 as carrier gas for radon. Furthermore, radon measurements to discriminate between shallow and deep gas sources were evaluated under the perspective of their applicability in monitoring programs of carbon storage projects. CO2 flux as high as 5000 gm(-2) d(-1) and Rn-222 activities up to 430 kBq m(-3) were measured; Rn-220 activities were one order of magnitude lower than those of Rn-222. The Rn-222/Rn-220 ratios were used to constrain the source of the Campo de Calatrava soil gases since a positive correlation between radon isotopic ratios and CO2 fluxes was observed. Thus, in agreement with previous studies, our results indicate a deep mantle-related origin of CO2 for both free and soil gases, suggesting that carbon dioxide is an efficient carrier for Rn. Furthermore, it was ascertained that the increase of Rn-222 in the soil gases was likely produced by two main processes: (i) direct transport by a carrier gas, i.e., CO2 and (ii) generation at shallow level due to the presence of relatively high concentrations of dissolved U and Ra in the thermal aquifer of Campo de Calatrava. The diffuse CO2 soil flux and radon isotopic surveys carried out in the Campo de Calatrava Volcanic Fields can also be applicable to geochemical monitoring programs in CCS (Carbon Capture and Storage) areas as these parameters are useful to: (i) constrain CO2 leakages once detected and (ii) monitor both the evolution of the leakages and the effectiveness of subsequent remediation activities. These measurements can also conveniently be used to detect diffuse leakages. (C) 2014 Elsevier Ltd. All rights reserved.
[+]

Keywords

Base-lineCarbon-dioxideCcs projectsCo leakages 2Co storage 2Co2 leakagesCo2 storageGeochemical monitoringGeochemistryGeological storageIndustrial analogsLeakageMigrationNatural analogsRadon isotopesReleaseSoil gasesSoil-gas radon

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal International Journal of Greenhouse Gas Control due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2015, it was in position 8/29, thus managing to position itself as a Q1 (Primer Cuartil), in the category Green & Sustainable Science & Technology.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations from Scopus Elsevier, it yields a value for the Field-Weighted Citation Impact from the Scopus agency: 1.28, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2026-04-24, the following number of citations:

  • WoS: 26
  • Scopus: 29
  • Google Scholar: 35
[+]

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-24:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 47 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/32897/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 426
  • Downloads: 414
[+]

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Italy.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Elio, J.) .

the author responsible for correspondence tasks has been Elio, J..

[+]

Awards linked to the item

We wish to thank C. Jenkins and Nunzia Voltattorni and an anonymous reviewer who greatly improved an early version of the manuscript. This work was funded by the Ciudad de la Energia Foundation (CIUDEN), through the ALM-08-006 contract, and co-financed by the European Union (European Energy Programme for Recovery). The sole responsibility of this publication lies with the authors. The European Union is not responsible for any use that may be made of the information contained therein.
[+]