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An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows
Computer models dedicated to the validation of groundwater contamination risk in the rural environment, namely the risk of contamination by nitrate leachates from agriculture fertilizers, are frequently based on direct comparison of risky areas (e.g., cropland, pastures used for livestock production...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6249407/ https://www.ncbi.nlm.nih.gov/pubmed/30505698 http://dx.doi.org/10.1016/j.mex.2018.11.002 |
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author | Pacheco, F.A.L. Martins, L.M.O. Quininha, M. Oliveira, A.S. Sanches Fernandes, L.F. |
author_facet | Pacheco, F.A.L. Martins, L.M.O. Quininha, M. Oliveira, A.S. Sanches Fernandes, L.F. |
author_sort | Pacheco, F.A.L. |
collection | PubMed |
description | Computer models dedicated to the validation of groundwater contamination risk in the rural environment, namely the risk of contamination by nitrate leachates from agriculture fertilizers, are frequently based on direct comparison of risky areas (e.g., cropland, pastures used for livestock production) and spatial distributions of contaminant (nitrate) plumes. These methods are fated to fail where lateral flows dominate in the landscape (mountainous catchments) displacing the nitrate plumes downhill and from the risky spots. In these cases, there is no connection between the spatial location of risky areas and nitrate plumes, unless the two locations can be linked by a contaminant transport model. The main purpose of this paper is therefore to introduce a method whereby spatio-temporal links can be demonstrated between risky areas (contaminant sources), actual nitrate plumes (contaminant sinks) and modeled nitrate distributions at specific groundwater travel times, thereby validating the risk assessment. The method assembles a couple of well known algorithms, namely the DRASTIC model [1,2] and the Processing Modflow software (https://www.simcore.com), but their combination as risk validation method is original and proved efficient in its initial application, the companion paper of Pacheco et al. [3]. |
format | Online Article Text |
id | pubmed-6249407 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-62494072018-11-30 An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows Pacheco, F.A.L. Martins, L.M.O. Quininha, M. Oliveira, A.S. Sanches Fernandes, L.F. MethodsX Environmental Science Computer models dedicated to the validation of groundwater contamination risk in the rural environment, namely the risk of contamination by nitrate leachates from agriculture fertilizers, are frequently based on direct comparison of risky areas (e.g., cropland, pastures used for livestock production) and spatial distributions of contaminant (nitrate) plumes. These methods are fated to fail where lateral flows dominate in the landscape (mountainous catchments) displacing the nitrate plumes downhill and from the risky spots. In these cases, there is no connection between the spatial location of risky areas and nitrate plumes, unless the two locations can be linked by a contaminant transport model. The main purpose of this paper is therefore to introduce a method whereby spatio-temporal links can be demonstrated between risky areas (contaminant sources), actual nitrate plumes (contaminant sinks) and modeled nitrate distributions at specific groundwater travel times, thereby validating the risk assessment. The method assembles a couple of well known algorithms, namely the DRASTIC model [1,2] and the Processing Modflow software (https://www.simcore.com), but their combination as risk validation method is original and proved efficient in its initial application, the companion paper of Pacheco et al. [3]. Elsevier 2018-11-07 /pmc/articles/PMC6249407/ /pubmed/30505698 http://dx.doi.org/10.1016/j.mex.2018.11.002 Text en © 2018 The Authors http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Environmental Science Pacheco, F.A.L. Martins, L.M.O. Quininha, M. Oliveira, A.S. Sanches Fernandes, L.F. An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows |
title | An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows |
title_full | An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows |
title_fullStr | An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows |
title_full_unstemmed | An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows |
title_short | An approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows |
title_sort | approach to validate groundwater contamination risk in rural mountainous catchments: the role of lateral groundwater flows |
topic | Environmental Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6249407/ https://www.ncbi.nlm.nih.gov/pubmed/30505698 http://dx.doi.org/10.1016/j.mex.2018.11.002 |
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