Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis

The aim of this work was to determine which parameters are sufficient to measure in order to describe the water quality of a pit lake and to identify patterns in the data among different kind of pit lakes. The data consisted of ambient dose equivalent rate, elemental and radionuclide concentration,...

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Autores: Thomas, Rimon, Piñero García, Francisco, Forssell‑Aronsson, Eva, Mantero Cabrera, Juan, Isaksson, Mats
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/144567
Acceso en línea:https://hdl.handle.net/11441/144567
https://doi.org/10.1007/s10230-022-00888-1
Access Level:acceso abierto
Palabra clave:Mining
HCA
PCA
Radionuclides
Uranium
Thorium
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spelling Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysisThomas, RimonPiñero García, FranciscoForssell‑Aronsson, EvaMantero Cabrera, JuanIsaksson, MatsMiningHCAPCARadionuclidesUraniumThoriumThe aim of this work was to determine which parameters are sufficient to measure in order to describe the water quality of a pit lake and to identify patterns in the data among different kind of pit lakes. The data consisted of ambient dose equivalent rate, elemental and radionuclide concentration, pH, and specific conductance in surface water and sediment samples collected from different types of mines. Data were tested for normality and log-normality and used in principal component analysis (PCA) and hierarchical cluster analysis (HCA). The normality tests indicated that only 40K was normally distributed, while only the 234,238U isotopes were log-normally distributed. HCA performed on parameters measured in surface water provided clusters that in most cases separated the elements according to their chemical groups. However, when HCA was performed on pit lakes, the clustering seemed to indicate that surface water might not be the preferred sample to differentiate between different types of pit lakes. PCA of surface water data resulted in three components that explained 72% of the variance when pH, SC, concentration of the elements Mg, K, Ca, Cu, Zn, Sr, Pb, activity concentration of 234,238U and 210Po, and ambient dose equivalent rate were included. For surface sediment data, the PCA resulted in three components explaining 83% of the variance when the concentration of Na, Mg, Al, P, K, Ca, Rb, Sr, Y, Tl, activity concentration of 234Th, 226Ra, 210Pb, 232Th (series average), and 40K, and ambient dose equivalent rate were included.SpringerFísica Aplicada IIRNM138: Física Nuclear AplicadaSwedish Radiation Safety Authority2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/144567https://doi.org/10.1007/s10230-022-00888-1reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMine Water and the Environment, 41, 695-703.SSM2014-3485https://link.springer.com/article/10.1007/s10230-022-00888-1info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1445672026-06-17T12:51:07Z
dc.title.none.fl_str_mv Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
title Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
spellingShingle Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
Thomas, Rimon
Mining
HCA
PCA
Radionuclides
Uranium
Thorium
title_short Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
title_full Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
title_fullStr Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
title_full_unstemmed Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
title_sort Natural radioactivity and metals in pit lakes in Sweden analyzed by principal component and cluster analysis
dc.creator.none.fl_str_mv Thomas, Rimon
Piñero García, Francisco
Forssell‑Aronsson, Eva
Mantero Cabrera, Juan
Isaksson, Mats
author Thomas, Rimon
author_facet Thomas, Rimon
Piñero García, Francisco
Forssell‑Aronsson, Eva
Mantero Cabrera, Juan
Isaksson, Mats
author_role author
author2 Piñero García, Francisco
Forssell‑Aronsson, Eva
Mantero Cabrera, Juan
Isaksson, Mats
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Física Aplicada II
RNM138: Física Nuclear Aplicada
Swedish Radiation Safety Authority
dc.subject.none.fl_str_mv Mining
HCA
PCA
Radionuclides
Uranium
Thorium
topic Mining
HCA
PCA
Radionuclides
Uranium
Thorium
description The aim of this work was to determine which parameters are sufficient to measure in order to describe the water quality of a pit lake and to identify patterns in the data among different kind of pit lakes. The data consisted of ambient dose equivalent rate, elemental and radionuclide concentration, pH, and specific conductance in surface water and sediment samples collected from different types of mines. Data were tested for normality and log-normality and used in principal component analysis (PCA) and hierarchical cluster analysis (HCA). The normality tests indicated that only 40K was normally distributed, while only the 234,238U isotopes were log-normally distributed. HCA performed on parameters measured in surface water provided clusters that in most cases separated the elements according to their chemical groups. However, when HCA was performed on pit lakes, the clustering seemed to indicate that surface water might not be the preferred sample to differentiate between different types of pit lakes. PCA of surface water data resulted in three components that explained 72% of the variance when pH, SC, concentration of the elements Mg, K, Ca, Cu, Zn, Sr, Pb, activity concentration of 234,238U and 210Po, and ambient dose equivalent rate were included. For surface sediment data, the PCA resulted in three components explaining 83% of the variance when the concentration of Na, Mg, Al, P, K, Ca, Rb, Sr, Y, Tl, activity concentration of 234Th, 226Ra, 210Pb, 232Th (series average), and 40K, and ambient dose equivalent rate were included.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/144567
https://doi.org/10.1007/s10230-022-00888-1
url https://hdl.handle.net/11441/144567
https://doi.org/10.1007/s10230-022-00888-1
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Mine Water and the Environment, 41, 695-703.
SSM2014-3485
https://link.springer.com/article/10.1007/s10230-022-00888-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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