A5064141810- Botany and Geology in Latin America and Caribbean
- Groundwater and Isotope Geochemistry
- Public Health and Environmental Issues
- Geological and Tectonic Studies in Latin America
- Fish biology, ecology, and behavior
- Water Quality and Pollution Assessment
- Viral gastroenteritis research and epidemiology
- Atmospheric and Environmental Gas Dynamics
- Geochemistry and Geologic Mapping
- Child Nutrition and Water Access
- Environmental and Cultural Studies in Latin America and Beyond
- Isotope Analysis in Ecology
- Fecal contamination and water quality
- Fish Ecology and Management Studies
- Historical Studies in Central America
- Climate variability and models
- International Arbitration and Investment Law
- Freshwater macroinvertebrate diversity and ecology
- Wildlife Ecology and Conservation
Universidad Nacional
2014-2024
Water quality information is essential supporting decision making in water management processes. The lack of restricts, at some point, the implementation adequate sanitation, which still scarce developing countries. In this study, an ecosystemic assessment was conducted Virilla river Costa Rica, a section particular interest for future sanitation development. It included monitoring physical, chemical, microbiological and benthic macroinvertebrate parameters from 2014 to 2016. Mutivariate...
The linkage between precipitation and recharge is still poorly understood in the Central America region. This study focuses on stable isotopic composition groundwater northern mountainous region of Valley Costa Rica. During dry season, rainfall samples corresponded to enriched events with high deuterium excess. By mid-May, Intertropical Convergence Zone poses over Rica resulting a depletion 18O/16O 2H/H ratios. A parsimonious four-variable regression model (r2 = 0.52) was able predict daily...
Nitrate pollution threatens the Barva and Colima multi-aquifer system, primary drinking water source in Greater Metropolitan Area of Costa Rica. In addressing nitrate contamination dynamics, this study proposes an integrated approach by combining multivariate statistical analyses, hydrochemical parameters, sewage discharge, regional land-use land-cover patterns to assess extent degree contamination, dominant biogeochemical processes, refine interpretation sources previously derived solely from δ
Abstract The volcanic Barva and Colima multiaquifer system is crucial for the drinking water supply of about 1.7 million people, 30% population in Costa Rica. complexity this simultaneous occurrence anthropogenic natural processes complicate understanding hydrochemical hydrogeological dynamics, both essential groundwater protection. This research aimed to develop a model discrimination groundwaters according main withdrawn aquifer flow path, assess interaquifer connections, evaluate...
El agua de los acuíferos Barva, Colima Superior y Inferior, ubicados en el sector oeste del Valle Central Costa Rica, representa la principal fuente abastecimiento potable esta región. propósito este estudio fue diseñar una red monitoreo o vigilancia para calidad estos las subcuencas ríos Bermúdez, Ciruelas río Segundo, así como fomentar participación actores sociales funcionamiento cada vigilancia. De sitios propuestos, cinco sobrepasaron, dos a cuatro ocasiones, Valor Alerta 25 mg/l...
Madrigal-Solís, H., Fonseca-Sánchez, A., & Reynolds-Vargas, J. (enero-febrero, 2017). Caracterización hidrogeoquímica de los acuíferos volcánicos Barva y Colima en el Valle Central Costa Rica. Tecnología Ciencias del Agua, 8(1), 115-132.La composición química agua subterránea está determinada por procesos antropogénicos interacciones con material geológico que conforma acuífero. El presente estudio describe la caracterización Colima, Rica, fin ampliar conocimiento acerca las entre ambos...
Las subcuencas del río Maravilla-Chiz y Quebrada Honda, localizadas en la región oriental área metropolitana de Costa Rica, tienen una superficie aproximada 46,8 km2, donde principal actividad económica es producción tanto agrícola como pecuaria su población se abastece fuentes agua subterránea. El objetivo investigación fue determinar amenaza contaminación subterránea, mediante evaluación estado las áreas protección manantiales abastecimiento público. Para eso, tomaron cuenta potenciales...
Los cambios producidos por actividades humanas sobre los ecosistemas acuáticos reducen y reconfiguran hábitats disponibles. Por ello, el objetivo de este estudio fue evaluar la selección hábitat nutria neotropical (Lontra longicaudis), en zonas con influencia represa hidroeléctrica del río Peñas Blancas algunos sus tributarios, fin recomendar acciones para conservación nutria. Se muestreó tres tributarios busca indicios medición siete variables ambientales determinar probabilidad ocurrencia...
In the eastern region of central Costa Rica, land use in sub-basins Maravilla-Chiz and Quebrada Honda rivers (47 km2) is dominated by agricultural livestock production, while groundwater resources constitute main drinking water supply. This study aimed to (a) evaluate location recharge areas flow paths, (b) provide a characterization hydrochemistry possible anthropic impacts. Groundwater was collected from 20 sites during dry rainy seasons analysed for major ions, stable isotopes 222Rn....
Rapidly urbanizing coastal communities are prone to overpopulation and unrestrained growth that result in pathogen nutrient emissions, which impair beach water quality jeopardize human environmental health. Decision makers face complex, context-dependent choices when selecting sanitation technologies with varying abilities remove pathogens nutrients. The goal of this study was identify context-appropriate solutions manage nutrients ensure safe swimming conditions an town relies on tourism....
<p>The volcanic aquifers in the Valle Central, most urbanized region of Costa Rica, are essential providing drinking water to about 1.7 million people. Nonetheless, underlying hydrogeochemical processes governing physical and chemical groundwater quality have been rarely studied. The main objective this study was evaluate natural controlling urban Barva Colima aquifers, by using multivariate statistical analyses hydrochemical tools. A total 571 samples collected quaterly, from...