Publicação
Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils
| Resumo: | When considering complex scenarios involving several attributes, such as in environmental characterization, a clearer picture of reality can be achieved through the dimensional reduction of data. In this context, maps facilitate the visualization of spatial patterns of contaminant distribution and the identification of enriched areas. A set, of 15 Potentially Toxic Elements (PTEs) – (As, Ba, Cd, Co, Cr, Cu, Hg,Mo, Ni, Pb, Sb, Se, Tl, V, and Zn), was measured in soil, collected in Langreo's municipality (80 km2), Spain. Relative enrichment (RE) is introduced here to refer to the proportion of elements present in a given context. Indeed, a novel approach is provided for research into PTE fate. This method involves studying the variability of PTE proportions throughout the study area, thereby allowing the identification of dissemination trends. Traditional geostatistical approaches commonly use raw data (concentrations) accepting that the elements analyzedmake up the entirety of the soil. However, in geochemical studies the analyzed elements are just a fraction of the total soil composition. Therefore, considering compositional data is pivotal. The spatial characterization of PTEs considering raw and compositional data together allowed a broad discussion about, not only the PTEs concentration's distribution but also to reckon possible trends of relative enrichment (RE). Transformations to open closed data are widely used for this purpose. Spatial patterns have an indubitable interest. In this study, the Centered Log-ratio transformation (clr) was used, followed by its back-transformation, to build a set of compositional data that, combined with raw data, allowed to establish the sources of the PTEs and trends of spatial dissemination. |
|---|---|
| Autores principais: | Boente, Carlos |
| Outros Autores: | Albuquerque, M.T.D.; Fernández-Braña, A.; Gerassis, Saki; Sierra, C.; Gallego, J.R. |
| Assunto: | Soil pollution PTEs Compositional data Ordinary kriging Local G-clustering Relative enrichment |
| Ano: | 2018 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Castelo Branco |
| Idioma: | inglês |
| Origem: | Repositório Científico do Instituto Politécnico de Castelo Branco |
| _version_ | 1868350547187204096 |
|---|---|
| author | Boente, Carlos |
| author2 | Albuquerque, M.T.D. Fernández-Braña, A. Gerassis, Saki Sierra, C. Gallego, J.R. |
| author2_role | author author author author author |
| author_facet | Boente, Carlos Albuquerque, M.T.D. Fernández-Braña, A. Gerassis, Saki Sierra, C. Gallego, J.R. |
| author_role | author |
| contributor_name_str_mv | Repositório Científico do Instituto Politécnico de Castelo Branco |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Boente, Carlos\"},{\"Person.name\":\"Albuquerque, M.T.D.\",\"Person.identifier.orcid\":\"0000-0002-8782-6133\"},{\"Person.name\":\"Fernández-Braña, A.\"},{\"Person.name\":\"Gerassis, Saki\"},{\"Person.name\":\"Sierra, C.\"},{\"Person.name\":\"Gallego, J.R.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico do Instituto Politécnico de Castelo Branco |
| datacite.creators.creator.creatorName.fl_str_mv | Boente, Carlos Albuquerque, M.T.D. Fernández-Braña, A. Gerassis, Saki Sierra, C. Gallego, J.R. |
| datacite.date.Accepted.fl_str_mv | 2018-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2020-08-31T00:30:10Z |
| datacite.date.embargoed.fl_str_mv | 2020-08-31T00:30:10Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Soil pollution PTEs Compositional data Ordinary kriging Local G-clustering Relative enrichment |
| datacite.titles.title.fl_str_mv | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| dc.contributor.none.fl_str_mv | Repositório Científico do Instituto Politécnico de Castelo Branco |
| dc.creator.none.fl_str_mv | Boente, Carlos Albuquerque, M.T.D. Fernández-Braña, A. Gerassis, Saki Sierra, C. Gallego, J.R. |
| dc.date.Accepted.fl_str_mv | 2018-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2020-08-31T00:30:10Z |
| dc.date.embargoed.fl_str_mv | 2020-08-31T00:30:10Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.11/6046 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Soil pollution PTEs Compositional data Ordinary kriging Local G-clustering Relative enrichment |
| dc.title.fl_str_mv | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | When considering complex scenarios involving several attributes, such as in environmental characterization, a clearer picture of reality can be achieved through the dimensional reduction of data. In this context, maps facilitate the visualization of spatial patterns of contaminant distribution and the identification of enriched areas. A set, of 15 Potentially Toxic Elements (PTEs) – (As, Ba, Cd, Co, Cr, Cu, Hg,Mo, Ni, Pb, Sb, Se, Tl, V, and Zn), was measured in soil, collected in Langreo's municipality (80 km2), Spain. Relative enrichment (RE) is introduced here to refer to the proportion of elements present in a given context. Indeed, a novel approach is provided for research into PTE fate. This method involves studying the variability of PTE proportions throughout the study area, thereby allowing the identification of dissemination trends. Traditional geostatistical approaches commonly use raw data (concentrations) accepting that the elements analyzedmake up the entirety of the soil. However, in geochemical studies the analyzed elements are just a fraction of the total soil composition. Therefore, considering compositional data is pivotal. The spatial characterization of PTEs considering raw and compositional data together allowed a broad discussion about, not only the PTEs concentration's distribution but also to reckon possible trends of relative enrichment (RE). Transformations to open closed data are widely used for this purpose. Spatial patterns have an indubitable interest. In this study, the Centered Log-ratio transformation (clr) was used, followed by its back-transformation, to build a set of compositional data that, combined with raw data, allowed to establish the sources of the PTEs and trends of spatial dissemination. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ipcb.pt/bitstreams/51685812-fcfc-4cef-a4ff-87df82e37b92/download |
| id | ripcb_bf64af09b94d3ecba09eac64868f967f |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.11/6046 |
| instacron_str | ipcb |
| institution | Instituto Politécnico de Castelo Branco |
| instname_str | Instituto Politécnico de Castelo Branco |
| language | eng |
| network_acronym_str | ripcb |
| network_name_str | Repositório Científico do Instituto Politécnico de Castelo Branco |
| oai_identifier_str | oai:repositorio.ipcb.pt:10400.11/6046 |
| organization_str_mv | urn:organizationAcronym:ipcb |
| person_str_mv | Boente, Carlos Albuquerque, M.T.D. Albuquerque, M.T.D. https://www.ciencia-id.pt/5A1C-8956-4C0A 5A1C-8956-4C0A http://orcid.org/0000-0002-8782-6133 0000-0002-8782-6133 Fernández-Braña, A. Gerassis, Saki Sierra, C. Gallego, J.R. |
| publishDate | 2018 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | Repositório Científico do Instituto Politécnico de Castelo Branco |
| repository_id_str | urn:repositoryAcronym:ripcb |
| service_str_mv | urn:repositoryAcronym:ripcb |
| spelling | engElsevierpt_PTWhen considering complex scenarios involving several attributes, such as in environmental characterization, a clearer picture of reality can be achieved through the dimensional reduction of data. In this context, maps facilitate the visualization of spatial patterns of contaminant distribution and the identification of enriched areas. A set, of 15 Potentially Toxic Elements (PTEs) – (As, Ba, Cd, Co, Cr, Cu, Hg,Mo, Ni, Pb, Sb, Se, Tl, V, and Zn), was measured in soil, collected in Langreo's municipality (80 km2), Spain. Relative enrichment (RE) is introduced here to refer to the proportion of elements present in a given context. Indeed, a novel approach is provided for research into PTE fate. This method involves studying the variability of PTE proportions throughout the study area, thereby allowing the identification of dissemination trends. Traditional geostatistical approaches commonly use raw data (concentrations) accepting that the elements analyzedmake up the entirety of the soil. However, in geochemical studies the analyzed elements are just a fraction of the total soil composition. Therefore, considering compositional data is pivotal. The spatial characterization of PTEs considering raw and compositional data together allowed a broad discussion about, not only the PTEs concentration's distribution but also to reckon possible trends of relative enrichment (RE). Transformations to open closed data are widely used for this purpose. Spatial patterns have an indubitable interest. In this study, the Centered Log-ratio transformation (clr) was used, followed by its back-transformation, to build a set of compositional data that, combined with raw data, allowed to establish the sources of the PTEs and trends of spatial dissemination.application/pdfpt_PTCombining raw and compositional data to determine the spatial patterns of potentially toxic elements in soilsBoente, CarlosPersonalAlbuquerque, M.T.D.DSpacehttp://dspace.org/items/e2c2d171-e148-4c23-9cf8-0eb6d810c15eDSpacehttp://dspace.org/items/e2c2d171-e148-4c23-9cf8-0eb6d810c15eAlbuquerqueMaria TeresaCiência IDhttps://www.ciencia-id.pt5A1C-8956-4C0AORCIDhttp://orcid.org0000-0002-8782-6133Researcher IDhttps://www.researcherid.comB-1536-2013Scopus Author IDhttps://www.scopus.com55507421600Fernández-Braña, A.Gerassis, SakiSierra, C.Gallego, J.R.HostingInstitutionOrganizationalRepositório Científico do Instituto Politécnico de Castelo Brancoe-mailmailto:repositorio@ipcb.ptrepositorio@ipcb.ptISSNIsPartOf0048-9697DOIIsPartOf10.1016/j.scitotenv.2018.03.0482020-08-31T00:30:10Z20182018-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.11/6046http://purl.org/coar/access_right/c_abf2open accessSoil pollutionPTEsCompositional dataOrdinary krigingLocal G-clusteringRelative enrichment1384733 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ipcb.pt/bitstreams/51685812-fcfc-4cef-a4ff-87df82e37b92/downloadScience of the Total Environment631-63211171126 |
| spellingShingle | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils Boente, Carlos Soil pollution PTEs Compositional data Ordinary kriging Local G-clustering Relative enrichment |
| status | SINGLETON |
| subject.fl_str_mv | Soil pollution PTEs Compositional data Ordinary kriging Local G-clustering Relative enrichment |
| title | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| title_full | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| title_fullStr | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| title_full_unstemmed | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| title_short | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| title_sort | Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils |
| topic | Soil pollution PTEs Compositional data Ordinary kriging Local G-clustering Relative enrichment |
| topic_facet | Soil pollution PTEs Compositional data Ordinary kriging Local G-clustering Relative enrichment |
| url | http://hdl.handle.net/10400.11/6046 |
| visible | 1 |