دورية أكاديمية
A new radon prediction approach for an assessment of radiological potential in drinking water.
| العنوان: | A new radon prediction approach for an assessment of radiological potential in drinking water. |
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| المؤلفون: | Martins LMO; Department of Geology, University of Trás-os-Montes and Alto Douro, Ap. 1013, 5001-801 Vila Real, Portugal; Centre for the Research and Technology of Agro-Environment and Biological Science, Vila Real, Portugal. Electronic address: lmmartins@utad.pt., Pereira AJSC; Department of Earth Sciences, Centre for Earth and Space Research, Rua Sílvio Lima, Polo II, Coimbra University, 3004-531 Coimbra, Portugal., Oliveira AS; Department of Geology, University of Trás-os-Montes and Alto Douro, Ap. 1013, 5001-801 Vila Real, Portugal; Geosciences Centre, Coimbra, Portugal., Fernandes LFS; Centre for the Research and Technology of Agro-Environment and Biological Science, Vila Real, Portugal; Department of Civil Engineering, University of Trás-os-Montes and Alto Douro, Ap. 1013, 5001-801 Vila Real, Portugal., Pacheco FAL; Department of Geology, University of Trás-os-Montes and Alto Douro, Ap. 1013, 5001-801 Vila Real, Portugal; Chemistry Research Centre, Vila Real, Portugal. |
| المصدر: | The Science of the total environment [Sci Total Environ] 2020 Apr 10; Vol. 712, pp. 136427. Date of Electronic Publication: 2020 Jan 07. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam, Elsevier. |
| مواضيع طبية MeSH: | Groundwater*, Drinking Water/*chemistry, Humans ; Radiation Monitoring ; Radon ; Water Pollutants, Radioactive |
| مستخلص: | Inhaled radon from groundwater used for domestic purposes is one of the sources of natural radioactivity into indoor air. Due to uranium-bearing minerals occurrences, hydrogeochemical conditions, tectonic structures, and hydraulic circuits, the radon pathway from rocks to groundwater is quite unpredictable. High radon potential from bedrocks is not always associated with high radon levels in groundwater. Besides, inhaled radon from domestic use may also increase the exposure toindoor radon levels. This innovative methodology using hydrogeochemical conditions and groundwater flow transport was used for radon predictions in the underground to ensure safe drinking water ingestion and inhalation. This innovative radon prediction methodology is based on classic hydrogeochemical analyses (Eh-pH, Piper, Schöeller and Gibb's diagrams) and multivariate statistical analyses (Principal Component Analysis and Pearson's correlation). High dissolution of major ions does not imply high radon mobilization from rocks to groundwater. The travel time was estimated to developed a flow transport of contaminated groundwater. Radiological results show that of the 25 sampled springs, five of them contained radon concentrations above the Portuguese imposed limit ( 222 Rn = 500 Bq·L - 1 ), and 16 of them with values above the WHO recommended limit ( 222 Rn = 100 Bq·L - 1 ). Overall, this new approach of radon prediction showed that uranium enrichment in rocks at ideal hydrochemical conditions and emanation coefficient, and shallow circuits, are responsible for radon increasing in drinking water. The proposed approach allow to predict the areas with high radon potential groundwaters, being a tool to be used by water planners and policy makers for corrective and preventive measures in shallow groundwater flows. To safeguard clean water within the predefined deadline of Sustainable Development Goals (2030) and to ensure human health in compliance with WHO guidelines for safe drinking water, should be established priority water protection policies to reduced radon in this contaminated springs (n = 16). Competing Interests: Declaration of competing interest The authors declare that there are no conflicts of interest regarding the publication of this paper. (Copyright © 2020 Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Groundwater flow transport; Hydrogeochemical conditions; Radon prediction; Safe drinking water |
| المشرفين على المادة: | 0 (Drinking Water) 0 (Water Pollutants, Radioactive) Q74S4N8N1G (Radon) |
| تواريخ الأحداث: | Date Created: 20200115 Date Completed: 20200422 Latest Revision: 20200422 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.scitotenv.2019.136427 |
| PMID: | 31935548 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1026 |
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| DOI: | 10.1016/j.scitotenv.2019.136427 |