Repository logo
 
Publication

Using indicator kriging for the evaluation of arsenic potential contamination in an abandoned mining area (Portugal)

2013Journal article Restricted access
Simple item page
dc.contributor.authorAntunes, I.M.H.R.
dc.contributor.authorAlbuquerque, M.T.D.
dc.date.accessioned2015-11-18T12:28:15Z
dc.date.available2015-11-18T12:28:15Z
dc.date.issued2013
dc.description.abstractMining and mineral-processing activities canmodify the environment in a variety of ways. Sulfide mineralization is notorious for producing waters with high metal contents. Arsenic is commonly associated with sulfide mineralization and is considered to be toxic in the environment at low levels. The studied abandoned mining area is located in central Portugal and the resulting tailings and rejected materials were deposited and exposed to the air and water for the last 50 years. Sixteen water sample-points were collected. One of these was collected outside the mining influence, with the aim of obtaining a reference background. The risk assessment, concerning the proximity to abandoned mineralized deposits, needs the evaluation of intrinsic and specific vulnerabilities aiming the quantification of the anthropogenic activities. In this study, two indicator variables were constructed. The first one (I1), a specific vulnerability, considers the arsenic water supply standard value (0.05 mg/L), and the probability of it being exceeded is dependent on the geologic and hydrological characteristics of the studied area and also on the anthropogenic activities. The second one (I2), an intrinsic vulnerability, considers arsenic background limit as cut-off value, and depends only on the geologic and hydro-geological characteristics of the studied area. At Segura, the arsenic water content found during December 2006 (1.190 mg/L) was higher than the arsenic water content detected in October 2006 (0.636 mg/L) which could be associated to the arsenic released from Fe oxy-hydroxide. At Segura abandoned mining area, the iso-probability maps of October 2006 and December 2006, show strong anomalies associated with the water drainage from abandoned mining activities. Near the village, the probability of exceeding the arsenic background value is high but lower than the probability of exceeding the arsenic water supply value. The arsenic anomalies indicate a high probability for water arsenic contamination and those waters should not be used for human consumption.pt_PT
dc.identifier.citationANTUNES, I.M.H.R. ; ALBUQUERQUE, M.T.D. (2013) - Using indicator kriging for the evaluation of arsenic potential contamination in an abandoned mining area (Portugal). Science of the Total Environment. ISSN 0048-9697. 442, p. 545-552.pt_PT
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.11/3091
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionwww.elsevier.com/ locate/scitotenvpt_PT
dc.subjectSulfide minespt_PT
dc.subjectArsenicpt_PT
dc.subjectWaterspt_PT
dc.subjectContaminationpt_PT
dc.subjectIndicator krigingpt_PT
dc.subjectSegurapt_PT
dc.titleUsing indicator kriging for the evaluation of arsenic potential contamination in an abandoned mining area (Portugal)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage552pt_PT
oaire.citation.startPage545pt_PT
oaire.citation.titleScience of the Total Environmentpt_PT
oaire.citation.volume442pt_PT
person.familyNameantunes
person.familyNameAlbuquerque
person.givenNameIsabel Margarida
person.givenNameMaria Teresa
person.identifier.ciencia-idCB1E-FAD2-37D6
person.identifier.ciencia-id5A1C-8956-4C0A
person.identifier.orcid0000-0003-3456-5926
person.identifier.orcid0000-0002-8782-6133
person.identifier.ridM-1043-2013
person.identifier.ridB-1536-2013
person.identifier.scopus-author-id6701817085
person.identifier.scopus-author-id55507421600
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication1db83c95-f80c-41bb-b5c6-437ab32d9683
relation.isAuthorOfPublicatione2c2d171-e148-4c23-9cf8-0eb6d810c15e
relation.isAuthorOfPublication.latestForDiscoverye2c2d171-e148-4c23-9cf8-0eb6d810c15e

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Antunes & albuquerque_2013_STOTEN.pdf
Size:
900.33 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.02 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESACB - Artigos em revistas com arbitragem científica