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Assessment of vulnerability and control measures to protect the Salbarua ecosystem from hypothetical spill sites.
Gárfias, Jaime; Llanos, Hilario; Martel, Richard; Salas-García, Javier; Bibiano-Cruz, Luvina.
Afiliação
  • Gárfias J; Faculty of Engineering (CIRA), Autonomous University of the State of Mexico, C. P. 50130, Toluca, Mexico. jgarfiass@gmail.com.
  • Llanos H; Department of Geodynamics, University of the Basque Country, 48940, Vitoria-Gasteiz, Basque Country, Spain.
  • Martel R; Institut National de la Recherche Scientifique (INRS-ETE), Québec, QC, G1K 9A9, Canada.
  • Salas-García J; Faculty of Engineering (CIRA), Autonomous University of the State of Mexico, C. P. 50130, Toluca, Mexico.
  • Bibiano-Cruz L; Faculty of Engineering (CIRA), Autonomous University of the State of Mexico, C. P. 50130, Toluca, Mexico.
Environ Sci Pollut Res Int ; 25(26): 26228-26245, 2018 Sep.
Article em En | MEDLINE | ID: mdl-29978311
Population pressure, urbanization, and industrial developments, among other factors, have resulted in severe degradation of environmental resources such as wetlands. Thus, a groundwater model (MODFLOW) was integrated with a particle tracking MODPATH model to simulate the hydrodynamic flow head field and to analyze the vulnerability of the Salburua ecosystem and propose control measures to protect the riparian area. The simulations show that pathways of particle tracking originating at potential contaminant sources will tend to migrate downwards towards the sensitive ecosystem, which suggests that the quality of the hydrological ecosystem is likely to deteriorate in the future. Variation in exit points of particles indicates that the time-related capture areas are affected by changes of the hydraulic gradients. Two control measures of potential sources of pollutants in the vicinity of the Salbarua ecosystem were analyzed. The study results suggest that the travel time-related capture zone with a funnel-and-gate system is much smaller than without the control alternative, which indicates that the gate configuration has an effect on capture zone size and shape and on the residence time with a better attenuation performance. It is also shown that a leakage-proof barrier is less effective for point-source containment, assuming that hydraulic control performance and cost-efficiency are the criteria for pollution control effectiveness. Instead, a program of monitoring wells would effectively characterize water quality in the aquifer and provide a decision support system. This approach may be used in helping water managers to develop more physically based and quantitative protection strategies.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Movimentos da Água / Poluição da Água / Água Subterrânea / Áreas Alagadas / Modelos Teóricos Tipo de estudo: Etiology_studies / Prognostic_studies / Risk_factors_studies País/Região como assunto: Europa Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: México País de publicação: Alemanha
Texto completo
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Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Movimentos da Água / Poluição da Água / Água Subterrânea / Áreas Alagadas / Modelos Teóricos Tipo de estudo: Etiology_studies / Prognostic_studies / Risk_factors_studies País/Região como assunto: Europa Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: México País de publicação: Alemanha