dor_id: 4102216

506.#.#.a: Público

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510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT), Sistema Regional de Información en Línea para Revistas Científicas de América Latina, el Caribe, España y Portugal (Latindex), Scientific Electronic Library Online (SciELO), SCOPUS, Web Of Science (WoS)

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

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351.#.#.6: http://revistagi.geofisica.unam.mx/index.php/RGI

351.#.#.b: Geofísica Internacional

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harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial, UNAM

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/2092/1758

100.1.#.a: Al Hilal, Mohamed

524.#.#.a: Al Hilal, Mohamed. (2020). Radon as a natural radiotracer to investigate infiltration from surface water to nearby aquifers: a case study from the Barada riverbank, Syria. Geofísica Internacional; Vol. 59 No. 3, 2020; 208-223. Recuperado de https://repositorio.unam.mx/contenidos/4102216

245.1.0.a: Radon as a natural radiotracer to investigate infiltration from surface water to nearby aquifers: a case study from the Barada riverbank, Syria

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 2020

264.#.1.c: 2020-07-01

653.#.#.a: Radon; Environmental tracer; Infiltration; Groundwater residence time; the Barada River; radon; marcador ambiental; infiltración; tiempo de estadía en el agua; río Barada

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2020-07-01, para un uso diferente consultar al responsable jurídico del repositorio por medio de revistagi@igeofisica.unam.mx

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041.#.7.h: eng

520.3.#.a: Radon (222Rn) is an inert radioactive gas that is constantly emanated from soils, rocks and groundwater due to alpha decay of radium ( 226Ra). The radioactivity, inertness and gaseous nature of radon make it a significant environmental tracer for examining some hydrogeological issues that involve interactions between surface and ground waters. The main objective of the present study is to investigate possible infiltration from the surface water of the Barada River, located in the Damascus basin, to an adjacent aquifer, which includes some wells frequently exploited to support the drinking water network of Damascus city. The technique applied here is based on the principle that as low-radon river water flows through the aquifer matrix, it continuously absorbs radon emanated from clayey sediments present in the aquifer, with equilibrium between radon uptake and radioactive decay being reached. The distribution of spatial groundwater radon variation has been monitored in four pre-existing wells drilled in a fluvial aquifer system along the margin of the Barada riverbank. The results revealed clear ingrowth of radon concentration by three to four orders of magnitude, reaching a steady equilibrium state after about four halflives. Based on the standard law of radioactivity, the residence time of infiltrated river water was estimated. Hydrochemical data in addition to geological investigations and radon activities revealed primarily evidences of infiltration from the Barada river water to the nearby aquifers system, which may become vulnerable to a risk of environmental contamination. Finally, the results also showed that ingrowth of radon activity in groundwater is positively correlated with the concentration of EC (R2 = 0.89) and to a less extent with TDS values (R2 = 0.67). This evident association is most likely due to the presence of some organic matter and clayey minerals in the sediments of the aquifer matrix.

773.1.#.t: Geofísica Internacional; Vol. 59 No. 3 (2020); 208-223

773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI

046.#.#.j: 2020-10-20 00:00:00.000000

022.#.#.a: 0016-7169

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264.#.1.b: Instituto de Geofísica, UNAM

758.#.#.1: http://revistagi.geofisica.unam.mx/index.php/RGI

handle: 6dd8665f8a8413bb

harvesting_date: 2020-09-23 00:00:00.0

856.#.0.q: application/pdf

file_modification_date: 2020-09-17 20:30:12.0

last_modified: 2020-10-21 00:00:00

license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es

license_type: by-nc-nd

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Artículo

Radon as a natural radiotracer to investigate infiltration from surface water to nearby aquifers: a case study from the Barada riverbank, Syria

Al Hilal, Mohamed

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Al Hilal, Mohamed. (2020). Radon as a natural radiotracer to investigate infiltration from surface water to nearby aquifers: a case study from the Barada riverbank, Syria. Geofísica Internacional; Vol. 59 No. 3, 2020; 208-223. Recuperado de https://repositorio.unam.mx/contenidos/4102216

Descripción del recurso

Autor(es)
Al Hilal, Mohamed
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Radon as a natural radiotracer to investigate infiltration from surface water to nearby aquifers: a case study from the Barada riverbank, Syria
Fecha
2020-07-01
Resumen
Radon (222Rn) is an inert radioactive gas that is constantly emanated from soils, rocks and groundwater due to alpha decay of radium ( 226Ra). The radioactivity, inertness and gaseous nature of radon make it a significant environmental tracer for examining some hydrogeological issues that involve interactions between surface and ground waters. The main objective of the present study is to investigate possible infiltration from the surface water of the Barada River, located in the Damascus basin, to an adjacent aquifer, which includes some wells frequently exploited to support the drinking water network of Damascus city. The technique applied here is based on the principle that as low-radon river water flows through the aquifer matrix, it continuously absorbs radon emanated from clayey sediments present in the aquifer, with equilibrium between radon uptake and radioactive decay being reached. The distribution of spatial groundwater radon variation has been monitored in four pre-existing wells drilled in a fluvial aquifer system along the margin of the Barada riverbank. The results revealed clear ingrowth of radon concentration by three to four orders of magnitude, reaching a steady equilibrium state after about four halflives. Based on the standard law of radioactivity, the residence time of infiltrated river water was estimated. Hydrochemical data in addition to geological investigations and radon activities revealed primarily evidences of infiltration from the Barada river water to the nearby aquifers system, which may become vulnerable to a risk of environmental contamination. Finally, the results also showed that ingrowth of radon activity in groundwater is positively correlated with the concentration of EC (R2 = 0.89) and to a less extent with TDS values (R2 = 0.67). This evident association is most likely due to the presence of some organic matter and clayey minerals in the sediments of the aquifer matrix.
Tema
Radon; Environmental tracer; Infiltration; Groundwater residence time; the Barada River; radon; marcador ambiental; infiltración; tiempo de estadía en el agua; río Barada
Idioma
eng
ISSN
0016-7169

Enlaces