Groundwater vulnerability assessment in coastal plain of Rio Grande do Sul State, Brazil, using drastic and adsorption capacity of soils

Herlinger, Ronaldo; Viero, Antonio Pedro

doi:10.1007/s00254-006-0518-4

Cited by 34 publications

(7 citation statements)

References 13 publications

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“…Many authors have added new parameters that impact groundwater contamination. Most frequently these were the type of land-use [17][18][19][20], lineament [21], groundwater velocity [22], and soil exchange capacity [23]. Some authors have excluded some parameters from the original DRASTC model, such as a topography and hydraulic conductivity [24], because these parameters are characterized by low spatial variability over the study area or show strong interdependence.…”

Section: Introductionmentioning

confidence: 99%

Applying a Modified DRASTIC Model to Assess Groundwater Vulnerability to Pollution: A Case Study in Central Poland

Kozłowski

Sojka

2019

Pol. J. Environ. Stud.

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Our paper presents the possibility of applying the DRASTIC model as a useful tool to support the process of local and regional development planning. The study was carried out in the catchment of Stare Miasto Reservoir in Central Poland. In order to plan the policy to protect the reservoir and groundwater, the assessment of groundwater vulnerability to pollution was made by means of the DRASTIC model. The original model was modified by adding a new parameter called "land use." The measured nitrate concentrations were used to test the original and modified models. The results of the study revealed that the modified DRASTIC model gave more accurate predictions than the traditional model. The Pearson correlation coefficients characterising the relationship between the vulnerability index and the nitrate concentration was 0.56 before the modification and 0.69 after it. The groundwater vulnerability map is necessary for planning local development and for assessing environmental impact. The DRASTIC model is expected to be a useful tool for designing programs and strategies, e.g., for improving the quality of surface water and groundwater.

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Section: Introductionmentioning

confidence: 99%

Applying a Modified DRASTIC Model to Assess Groundwater Vulnerability to Pollution: A Case Study in Central Poland

Kozłowski

Sojka

2019

Pol. J. Environ. Stud.

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“…Advancements in software development now make it is possible to easily overlap the seven layers within a GIS framework and obtain a digital output that can be categorized in different ways. In this regard, there are numerous articles that have provided various classifications for the final model-generated map, from non-vulnerability (Metni et al 2004;Herlinger and Viero 2007;Prasad et al 2011;Chitsazan and Akhtari 2009;Yin et al 2012) to extreme vulnerability (Rozkowski 2010;Herlinger and Viero 2007). Different input parameters used to create the final map can be varied depending on the needs of the different users.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Alluvial Aquifer Intrinsic Vulnerability by a Generic Drastic Model; A Discussion on Data Adequacy and Pragmatic Results

Taheri¹,

Missimer²,

Maleki³

et al. 2021

Preprint

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DRASTIC is a model that is commonly used to assess vulnerability to groundwater contamination at the landscape scale. When sparse data are available to populate the layers of the model, it can be difficult to ascertain the true usefulness of the model produced map. In this research an alluvial aquifer, the Sahneh aquifer in Kermanshah province of western Iran, was mapped using the generic DRASTIC model. The data available for populating the model layers were generally sparse. The model was validated using a nitrate concentration map constructed from well water measurements within the DRASTIC map area. A Receiver Operating Curve (ROC) analysis was conducted by placing 500 random points in the DRASTIC generated map compared to the nitrate concentration map. The area under the curve was compared and yielded a value of 0.72 or 72% concordance, which means it has good validity. This investigation demonstrates that a generic DRASTIC model can yield acceptable results without modification or increasing its complexity. If the ROC analysis had yielded a value <50%, then the DRASTIC would have been considered to not be useful. A common mistake in the use of DRASTIC is to modify the method to greatly increase its complexity, which may actually decrease, not increase the resultant model usefulness.

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“…Coastal plains are complex hydrological environments where the chemical composition of water is controlled by multiple natural factors such as regional discharge, rainfall, tides, and evapotranspiration (e.g., Vandenbohede and Lebbe, 2012;Da Lio et al, 2015). In addition, these regions located at the interface between oceans and the continents are highly stressed owing to their intensively use and the accumulation of the byproducts of inland human activities, that are discharged from rivers and atmospheric deposition (Pruden et al, 2006;Da et al, 2014;Wu et al, 2014;Zhu et al, 2017;Herlinger and Viero, 2007;Graber et al, 2008;Güler et al, 2012). Therefore, an integrated understanding of fundamental physical and chemical processes is required to manage coastal resources more efficiently, based on site-specific comparative studies of coastal environments.…”

Section: Introductionmentioning

confidence: 99%

“…Modifications to the hydrological functioning and to the water quality are commonly registered in coastal plains with industrial development worldwide (e.g., Vecchioli, 1998;Herlinger and Viero, 2007;Botté et al, 2010;Marcovecchio et al, 2010;La Colla et al, 2015;Sá et al, 2015). The coastal plain of the Río de la Plata is one of the most extensive of the Atlantic coast of South America.…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemical and isotopic signature of surface and groundwater in a highly industrialized sector of the Rio de la Plata coastal plain (Argentina)

Santucci

Carol

Borzi

et al. 2017

Marine Pollution Bulletin

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The coastal plain of the middle estuary of the Río de la Plata is a highly industrialized area and is densely populated by sectors. The main human activity in the sector encompassed between the cities of Ensenada and Berisso is associated with the petrochemical industry. In this work, hydrogeochemical and isotopic characteristics of surface and groundwater in the impacted area are analyzed and the results are contrasted with those obtained in an undisturbed protected area. Major and trace elements were determined using standardized methods while the stable isotopes δO y δH were analyzed by mass spectroscopy. Human impact is evidenced by the occurrence of large variations in the major chemical composition of water, and also by the elevated concentrations of some trace elements that are not contributed from natural sources. These results may contribute to the understanding of chemical processes and pollutants distribution in highly industrialized coastal plain areas.

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Groundwater vulnerability assessment in coastal plain of Rio Grande do Sul State, Brazil, using drastic and adsorption capacity of soils

Cited by 34 publications

References 13 publications

Applying a Modified DRASTIC Model to Assess Groundwater Vulnerability to Pollution: A Case Study in Central Poland

Applying a Modified DRASTIC Model to Assess Groundwater Vulnerability to Pollution: A Case Study in Central Poland

Assessment of Alluvial Aquifer Intrinsic Vulnerability by a Generic Drastic Model; A Discussion on Data Adequacy and Pragmatic Results

Hydrogeochemical and isotopic signature of surface and groundwater in a highly industrialized sector of the Rio de la Plata coastal plain (Argentina)

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