dor_id: 4133319

506.#.#.a: Público

590.#.#.d: Los artículos enviados a la revista "Geofísica Internacional", se juzgan por medio de un proceso de revisión por pares

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Scientific Electronic Library Online (SciELO); SCOPUS, Dialnet, Directory of Open Access Journals (DOAJ); Geobase

561.#.#.u: https://www.geofisica.unam.mx/

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

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

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

351.#.#.b: Geofísica Internacional

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

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

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: https://revistas.unam.mx/catalogo/

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

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

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/136/131

100.1.#.a: Morales Arredondo, Ivan; Flores Ocampo, Itzamna Zaknite; Armienta, María Aurora; Morán Ramírez, Janete; Hernández Hernández, Mario Alberto; Landa Arreguin, Jorge Federico

524.#.#.a: Morales Arredondo, Ivan, et al. (2020). Identificación de las fuentes de nitratos mediante métodos hidrogeoquímicos e isotópicos en el agua subterránea del Bajío Guanajuatense. Geofísica Internacional; Vol. 59 Núm. 3: Julio 1, 2020; 169-194. Recuperado de https://repositorio.unam.mx/contenidos/4133319

245.1.0.a: Identificación de las fuentes de nitratos mediante métodos hidrogeoquímicos e isotópicos en el agua subterránea del Bajío Guanajuatense

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: Nitratos; contaminación del agua subterránea; fertilizantes; agricultura isotopía; Nitrates; groundwater contamination; fertilizer; agriculture; isotopic signature

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-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx

884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/136

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/136

041.#.7.h: spa

520.3.#.a: The sub-province Bajío Guanajuatense is located in Central Mexico, is one of the most important agricultural areas in Mexico, where are used large volumes of water. The current panorama of Guanajuato shows an increase of more than three times in the use of groundwater, compared to extraction 30 years ago; this water is used to maximize crop yields; another problem that has increased is the excessive use of nitrogen fertilizers in all the area. This context becomes more serious considering that in the study area, occurs problems of overexploitation, depletion of the piezometric level, presence of deep faults and fractures, coupled with contamination at different levels of the aquifer by nitrogen compounds. The objective of this work is to evaluate the presence of nitrogen compounds at different depths of the aquifer, in addition, to identifying isotopic and hydrogeochemical sources, their transformations and the processes related to the high NO3 - content in groundwater. Based on the results obtained from the concentration of NO3 - , major, minor chemical elements, trace and isotopes, two sources of pollution have been identified; one related to agriculture and the second to wastewater treatment, This has caused that NO3 - content exceed the values allowed by NOM-127, according to the sampling data of 2017 and 2019, not only the shallow aquifer is polluted, also the deep. Two groundwater sampling campaigns were carried out in 32 urban and agricultural wells of the municipalities of Vill and JR in Guanajuato, in rainy and dry season, following national and international methods. Major, minor and some trace elements were determined, as well as stable isotopes. The origin of the high content of NO3 - is anthropogenic; the highest values were quantified during the dry season. Nitrates migrate more easily through faults and deep fractures, mainly in the centralsouth zone of the study area to the middle aquifer and possibly to the deep one, this process is relevant since the area is recognized as an impermeable medium due to the presence of large layers of clays. A wastewater treatment plant is a source of contamination, the application of fertilizers would be the other possible source of contamination. The transformation of nitrogen compounds could affect the isotopic behavior of ?18O, although it is not ruled out that it could be due to evaporation processes and infiltration of shallow water. This information should be considered since the presence of nitrates in the environment represents a risk to the health of the population that is supplied by the same aquifer system where these activities take place.doi: https://doi.org/10.22201/igeof.00167169p.2020.59.3.2093                      

773.1.#.t: Geofísica Internacional; Vol. 59 Núm. 3: Julio 1, 2020; 169-194

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

022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169

310.#.#.a: Trimestral

300.#.#.a: Páginas: 169-194

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

doi: https://doi.org/10.22201/igeof.00167169p.2020.59.3.2093

handle: 3ddb76f2f0f3e233

harvesting_date: 2023-06-20 16:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2022-04-13 04:13:53.0

file_modification_date: 2022-04-13 04:13:53.0

file_creator: Ivan Morales-Arredondo

file_name: 8ba1b01998eb2522a1f1a331058fc068d81acf959984490fa22cb0f3bd047fa3.pdf

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245.1.0.b: Identificación de las fuentes de nitratos mediante métodos hidrogeoquímicos e isotópicos en el agua subterránea del Bajío Guanajuatense

last_modified: 2023-06-20 16:00:00

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

license_type: by-nc-sa

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