Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.heliyon.2019.e01563 http://hdl.handle.net/11449/189072 |
Resumo: | Gross alpha and gross beta activities have been determined in thermal and non-thermal spas groundwaters (75)occurring at São Paulo and Minas Gerais states in Brazil as they are ingested in public places, bottled and used for bathing purposes, among other. The samples provided from springs and pumped tubular wells drilled at different aquifer systems inserted in Paraná and Southeastern Shield hydrogeological provinces. The WHO guideline reference value proposed in 2011 for the drinking water quality was never reached for the gross alpha activity (0.5 Bq/L)but it was exceeded in 13 groundwater samples for the gross beta activity (1 Bq/L). Available activity concentration data of the natural radionuclides 40 K, 228 Ra ( 232 Th-daughter), 238 U and descendants ( 234 U, 226 Ra, 222 Rn, 210 Pb, 210 Po)allowed calculate the total Committed Effective Dose (CED)based on a drinking water ingestion rate of 2 L/day. The WHO reference level of 0.1 mSv per year for the CED was surpassed in a high number of water sources (62 (83%)or 41 (55%), disregarding radon), denoting the relevance of the radiological surveys detailing as much as possible the dissolved radionuclides present in potable waters, despite the analytical difficulties and costs involved. |
id |
UNSP_0bde45a2064f3cc40c5616d2f53b6a0b |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/189072 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwatersEnvironmental sciencesGeoscienceGross alpha and gross beta activities have been determined in thermal and non-thermal spas groundwaters (75)occurring at São Paulo and Minas Gerais states in Brazil as they are ingested in public places, bottled and used for bathing purposes, among other. The samples provided from springs and pumped tubular wells drilled at different aquifer systems inserted in Paraná and Southeastern Shield hydrogeological provinces. The WHO guideline reference value proposed in 2011 for the drinking water quality was never reached for the gross alpha activity (0.5 Bq/L)but it was exceeded in 13 groundwater samples for the gross beta activity (1 Bq/L). Available activity concentration data of the natural radionuclides 40 K, 228 Ra ( 232 Th-daughter), 238 U and descendants ( 234 U, 226 Ra, 222 Rn, 210 Pb, 210 Po)allowed calculate the total Committed Effective Dose (CED)based on a drinking water ingestion rate of 2 L/day. The WHO reference level of 0.1 mSv per year for the CED was surpassed in a high number of water sources (62 (83%)or 41 (55%), disregarding radon), denoting the relevance of the radiological surveys detailing as much as possible the dissolved radionuclides present in potable waters, despite the analytical difficulties and costs involved.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Departamento de Petrologia e Metalogenia Universidade Estadual Paulista (UNESP) Câmpus de Rio Claro, Av. 24-A No.1515, C.P. 178Departamento de Petrologia e Metalogenia Universidade Estadual Paulista (UNESP) Câmpus de Rio Claro, Av. 24-A No.1515, C.P. 178FAPESP: 2017/03054-2CNPq: 301992/2016-9CNPq: 400700/2016-6Universidade Estadual Paulista (Unesp)Bonotto, Daniel Marcos [UNESP]2019-10-06T16:28:49Z2019-10-06T16:28:49Z2019-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.heliyon.2019.e01563Heliyon, v. 5, n. 5, 2019.2405-8440http://hdl.handle.net/11449/18907210.1016/j.heliyon.2019.e015632-s2.0-85065202296Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengHeliyoninfo:eu-repo/semantics/openAccess2021-10-23T20:18:47Zoai:repositorio.unesp.br:11449/189072Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T20:18:47Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters |
title |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters |
spellingShingle |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters Bonotto, Daniel Marcos [UNESP] Environmental sciences Geoscience |
title_short |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters |
title_full |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters |
title_fullStr |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters |
title_full_unstemmed |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters |
title_sort |
Gross alpha/beta radioactivity and radiation dose in thermal and non-thermal spas groundwaters |
author |
Bonotto, Daniel Marcos [UNESP] |
author_facet |
Bonotto, Daniel Marcos [UNESP] |
author_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Bonotto, Daniel Marcos [UNESP] |
dc.subject.por.fl_str_mv |
Environmental sciences Geoscience |
topic |
Environmental sciences Geoscience |
description |
Gross alpha and gross beta activities have been determined in thermal and non-thermal spas groundwaters (75)occurring at São Paulo and Minas Gerais states in Brazil as they are ingested in public places, bottled and used for bathing purposes, among other. The samples provided from springs and pumped tubular wells drilled at different aquifer systems inserted in Paraná and Southeastern Shield hydrogeological provinces. The WHO guideline reference value proposed in 2011 for the drinking water quality was never reached for the gross alpha activity (0.5 Bq/L)but it was exceeded in 13 groundwater samples for the gross beta activity (1 Bq/L). Available activity concentration data of the natural radionuclides 40 K, 228 Ra ( 232 Th-daughter), 238 U and descendants ( 234 U, 226 Ra, 222 Rn, 210 Pb, 210 Po)allowed calculate the total Committed Effective Dose (CED)based on a drinking water ingestion rate of 2 L/day. The WHO reference level of 0.1 mSv per year for the CED was surpassed in a high number of water sources (62 (83%)or 41 (55%), disregarding radon), denoting the relevance of the radiological surveys detailing as much as possible the dissolved radionuclides present in potable waters, despite the analytical difficulties and costs involved. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:28:49Z 2019-10-06T16:28:49Z 2019-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.heliyon.2019.e01563 Heliyon, v. 5, n. 5, 2019. 2405-8440 http://hdl.handle.net/11449/189072 10.1016/j.heliyon.2019.e01563 2-s2.0-85065202296 |
url |
http://dx.doi.org/10.1016/j.heliyon.2019.e01563 http://hdl.handle.net/11449/189072 |
identifier_str_mv |
Heliyon, v. 5, n. 5, 2019. 2405-8440 10.1016/j.heliyon.2019.e01563 2-s2.0-85065202296 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Heliyon |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649704331837440 |