Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/107415
DC FieldValueLanguage
dc.contributor.authorMartins, Lisa-
dc.contributor.authorPereira, Alcides-
dc.contributor.authorOliveira, Alcino-
dc.contributor.authorFernandes, António-
dc.contributor.authorSanches Fernandes, Luís Filipe-
dc.contributor.authorPacheco, Fernando António Leal-
dc.date.accessioned2023-07-10T09:36:20Z-
dc.date.available2023-07-10T09:36:20Z-
dc.date.issued2019-
dc.identifier.issn2073-4441pt
dc.identifier.urihttps://hdl.handle.net/10316/107415-
dc.description.abstractThere is currently some controversy in the scientific community regarding the e ciency of the water–rock interaction process in the contamination of radon in groundwater. In this study, some di culties were found in the sampling phase. Many of the water collection points are used for human consumption. As such, some municipalities did not want to collaborate. When this natural contaminant is undetectable to the human sense and may cause pulmonary neoplasms in the long term, it is di cult to obtain collaboration from the municipalities concerned. To overcome this controversy, it is important to understand that geogenic, climatic, hydrological, and topographic features may contribute to the e ective transfer of radon from rocks to groundwater. In brief, this new approach combines the radon transfer from the geological substrate to the groundwater circulation through hierarchic agglomerative clustering (HAC) and partial least squares-path modeling (PLS-PM) methods. The results show that some lithologies with higher radon production may not always contribute to noticeable groundwater contamination. In this group, the high-fracturing density confirms the recharge e ciency, and the physical-chemical properties of the hydraulic environment (electric conductivity) plays the main role of radon unavailability in the water intended for human consumption. Besides, the hydraulic turnover time of the springs can be considered an excellent radiological indicator in groundwater. In the absence of an anomalous radioactive source near the surface, it means that the high-turnover time of the springs leads to a low-radon concentration in the water. Besides linking high-risk areas with a short period required to free local flow discharges, this study exposes the virtues of a new perspective of a groundwater contamination risk modeling.pt
dc.language.isoengpt
dc.publisherMDPIpt
dc.relationThis research was funded by the INTERACT project—“Integrated Research in Environment, Agro-Chain and Technology”, no. NORTE-01-0145-FEDER-000017, in its line of research entitled BEST, co-financed by the European Regional Development Fund (ERDF) through NORTE 2020 (North Regional Operational Program 2014/2020). For authors integrated into the CITAB research centre, it was further financed by the FEDER/COMPETE/POCI—Operational Competitiveness and Internationalization Programme, under Project POCI-01-0145-FEDER-006958, and by National Funds of FCT–Portuguese Foundation for Science and Technology, under the project UID/AGR/04033/2019. For the author integrated into the CQVR, the research was additionally supported by National Funds of FCT–Portuguese Foundation for Science and Technology, under the project UID/QUI/00616/2019.pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectgroundwaterpt
dc.subjectrockspt
dc.subjectradon production potentialpt
dc.subjectgranitoidspt
dc.subjectmetasedimentspt
dc.titleAn Assessment of Groundwater Contamination Risk with Radon Based on Clustering and Structural Modelspt
dc.typearticle-
degois.publication.firstPage1107pt
degois.publication.issue5pt
degois.publication.titleWater (Switzerland)pt
dc.peerreviewedyespt
dc.identifier.doi10.3390/w11051107pt
degois.publication.volume11pt
dc.date.embargo2019-01-01*
uc.date.periodoEmbargo0pt
item.cerifentitytypePublications-
item.languageiso639-1en-
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypearticle-
crisitem.author.researchunitCEMMPRE - Centre for Mechanical Engineering, Materials and Processes-
crisitem.author.orcid0000-0002-7392-2255-
crisitem.author.orcid0000-0003-2465-2698-
Appears in Collections:I&D CGUC - Artigos em Revistas Internacionais
Show simple item record

SCOPUSTM   
Citations

23
checked on May 6, 2024

WEB OF SCIENCETM
Citations

13
checked on May 2, 2024

Page view(s)

57
checked on May 14, 2024

Download(s)

33
checked on May 14, 2024

Google ScholarTM

Check

Altmetric

Altmetric


This item is licensed under a Creative Commons License Creative Commons