Groundwater pollution: a discussion about vulnerability, hazard and risk assessment

Massone, Héctor; Barilari, Agustina

doi:10.1007/s10040-019-02090-0

Cited by 7 publications

(2 citation statements)

References 26 publications

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“…The escalating repercussions stemming from intensi ed aquifer utilization have prompted the United Nations Educational, Scienti c and Cultural Organization (UNESCO) to underscore the imperative of devising indicators for groundwater governance (Vrba et al, 2007). Evaluation of groundwater pollution entails the amalgamation of three primary facets re ned over time: aquifer vulnerability, hazard, and risk (Massone & Barilari, 2020).…”

Section: Introductionmentioning

confidence: 99%

Spatial analysis of the potential impact of contaminated areas on wells and aquifers in the Upper Tietê Basin, São Paulo, Brazil

de Camargo,

Moreira,

Leite

et al. 2024

Preprint

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Upper Tietê stands out as the basin with the highest concentration of contaminated areas in São Paulo, Brazil, thereby exerting a pronounced impact on the quality of groundwater and directly affecting the resident population. Recognizing the importance of developing indicators for effective aquifer management, this study proposed to identify and assess the degree of risk, vulnerability, and contamination of aquifers and wells in the Upper Tietê Basin. Were applied the Aquifer Vulnerability Index method to evaluate the aquifer vulnerability in the region; the delimitation of safety perimeters and identification of wells at risk; and the integrated risk index, unifying information on social and aquifer vulnerabilities, hazards and exposure. The results reveal that the aquifers have a high vulnerability, mainly due to the thickness of their unsaturated layer. Furthermore, there were 7,958 wells at risk around the basin (77.15%), and the most vulnerable municipalities are on the outskirts of the basin. This study provides important insights, mainly due to the holistic approach, serving as a basis for identifying the regions with the highest risks, which can be prevented and mitigated with appropriate actions.

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Section: Introductionmentioning

confidence: 99%

Spatial analysis of the potential impact of contaminated areas on wells and aquifers in the Upper Tietê Basin, São Paulo, Brazil

de Camargo,

Moreira,

Leite

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…In that study, the uncertainty is considered only in hydraulic conductivity, and the risks under the threat of decreasing groundwater level and the existence of SWI were not considered. In this context, steps for groundwater pollution assessment were investigated by Massone and Barilari (2019). Their first step introduced the assessment of aquifer vulnerability; in the second step, methodological approaches were developed with regard to risk assessment.…”

Section: Introductionmentioning

confidence: 99%

A risk-based groundwater modeling framework in coastal aquifers: a case study on Long Island, New York, USA

2020

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A methodology is proposed to define indices for quantifying risks under the threat of reducing in groundwater levels, the existence of saltwater intrusion (SWI), and an increasing nitrate contamination load in submarine groundwater discharge (SGD). The proposed methodology considers coastal regions under geological heterogeneity and it is tested on a groundwater system in Nassau County of Long Island, New York (USA). The numerical model is constructed with the SEAWAT code. The parameter uncertainty of this model is evaluated by coupling the Latin hypercube sampling method (as a sampling algorithm) and Monte Carlo simulation to consider the uncertainty in both hydraulic conductivity and recharge rate. The indices are presented in spatial maps that classify areas of risk to potential threats. The results show that two of the water districts have a high risk under conditions of decreasing groundwater level. Salinity occurs in the southern and southwestern parts of the Nassau County aquifer and a considerable area of high risk of SWI is identified. Furthermore, the average SGD rate with the associated fluxes of nitrate is estimated as 81.4 million m3/year (average 0.8 tons of nitrate through SGD per year), which can adversely affect the quality of life in the local coastal ecosystems. The framework developed in this study could help the water district managers to identify high-risk areas for short-term and long-term planning and is applicable to other coastal settings.

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DIRECT index – A coupled indicator of groundwater vulnerability to pollution and groundwater-dependent ecosystems risk

Duda,

Kania,

Zdechlik

2024

Ecological Indicators

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Groundwater pollution: a discussion about vulnerability, hazard and risk assessment

Cited by 7 publications

References 26 publications

Spatial analysis of the potential impact of contaminated areas on wells and aquifers in the Upper Tietê Basin, São Paulo, Brazil

Spatial analysis of the potential impact of contaminated areas on wells and aquifers in the Upper Tietê Basin, São Paulo, Brazil

A risk-based groundwater modeling framework in coastal aquifers: a case study on Long Island, New York, USA

DIRECT index – A coupled indicator of groundwater vulnerability to pollution and groundwater-dependent ecosystems risk

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