Hydrogeochemical characterization and determination of natural background levels (NBL) in groundwater within the main lithological units in Slovenia

Serianz, Luka; Cerar, Sonja; Šraj, Mojca

doi:10.1007/s12665-020-09112-1

Cited by 16 publications

(9 citation statements)

References 41 publications

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“…Several well-established methodological approaches exist for the identification of natural background level (NBL) of groundwater contaminants (Rotiroti and Fumagalli, 2013;Rotiroti et al, 2015;Ducci et al, 2016;Parrone et al, 2019;Serianz et al, 2020). However, consolidated methods are still lacking for the identification of DPBLs.…”

Section: Introductionmentioning

confidence: 99%

Multi-Methodological Integrated Approach for the Assessment of Diffuse Pollution Background Levels (DPBLs) in Functional Urban Areas: The PCE Case in Milano NW Sector

Colombo

Alberti

Azzellino

et al. 2020

Front. Environ. Sci.

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The Milano Metropolitan Area [named FUA (functional urban area)] has a history of heavy industrialization causing a large portion of area being affected by significant diffuse contaminations of soil and groundwater. Among the various contaminants, chlorinated solvents (e.g., tetrachloroethylene and trichloroethylene) are the most used in industrial processes and represent the major cause of groundwater pollution within the FUA. The background diffuse contamination generated by these pollutants is so persistent and widely spread that makes it extremely challenging to identify the sources responsible for their release. Such background contamination originates from the overlapping of both known sources (point sources), associated to specific high release of contamination, and unknown small sources (multiple point sources), clustered within a large area, whose release is low but persistent. The aim of this article is to present the methodology, developed within the framework of the AMIIGA Project (Interreg Central Europe Grant N • CE32), which combines multivariate statistical analysis and groundwater numerical modeling in order to separate the point sources contribution from the background diffuse contamination, and supporting public authorities in the management of groundwater remediation. A methodological workflow is proposed guiding local and regional institutions to use the methodology (i.e., exploratory analysis of big dataset, simulation of groundwater flow and transport, multivariate and geostatistical analysis) to assess diffuse pollution background levels in large urbanized areas.

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Section: Introductionmentioning

confidence: 99%

Multi-Methodological Integrated Approach for the Assessment of Diffuse Pollution Background Levels (DPBLs) in Functional Urban Areas: The PCE Case in Milano NW Sector

Colombo

Alberti

Azzellino

et al. 2020

Front. Environ. Sci.

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“…The measured concentrations of other basic chemical parameters are low and do not indicate significant pollution of groundwater and surface water. Nitrate concentrations (NO 3 -) in groundwater are below 1.95 mg/L, which is below the expected natural background (5 mg/L) (Serianz et al, 2020a). Sulphate concentrations (SO 4 2-) range from 0.76 to 1.40 mg/L and chloride concentrations (Cl -) range from 0.21 to 0.30 mg/L.…”

Section: Physio-chemical Parametersmentioning

confidence: 86%

Using stable isotopes and major ions to identify recharge characteristics of the Alpine groundwater-flow dominated Triglavska Bistrica River

Serianz¹,

Cerar²,

Vreča³

2021

Geologija

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Triglavska Bistrica is a typical Alpine river in the north-western part of Slovenia. Its recharge area includes some of the highest peaks in the Julian Alps. The hydrogeological conditions and flow of the river depend largely on groundwater exchange between the karstified aquifer in the carbonate rocks and the intergranular aquifer in the glaciofluvial deposits. The average volume of the river flow is up to several m3/s. In this study, water samples from different locations along the river were analysed for stable isotope ratios of oxygen and hydrogen, major ions, and concentration of tritium activity. The correlation of major ions suggests that the recharge area consists of both limestone and dolomite rocks. The δ18O and δ2H values decrease downstream, implying that the average recharge elevation increases. At the downstream sampling site V-5, located approx. 300 m upstream from the confluence of the Sava Dolinka River, the calculated mean recharge altitude is estimated to be 1,996 m.

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“…By definition, the GWB are assumed to belong to a certain river basin. Despite of that, it is well known that groundwater basins, specially in mountain zones, may extend throughout several river basins (Struckmeier et al, 2006;Serianz et al, 2020). As a result, GWBs may include several aquifers or even only parts of them as it happens in the PCM, whose discharge contributes to both the Ebro and the Llobregat rivers through GWB-44 and GWB-5, respectively.…”

Section: Nbls and Tvs Valuesmentioning

confidence: 99%

Evaluation of natural background levels of high mountain karst aquifers in complex hydrogeological settings. A Gaussian mixture model approach in the Port del Comte (SE, Pyrenees) case study

Herms

Jódar

Soler

et al. 2021

Science of The Total Environment

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Hydrogeochemical characterization and determination of natural background levels (NBL) in groundwater within the main lithological units in Slovenia

Cited by 16 publications

References 41 publications

Multi-Methodological Integrated Approach for the Assessment of Diffuse Pollution Background Levels (DPBLs) in Functional Urban Areas: The PCE Case in Milano NW Sector

Multi-Methodological Integrated Approach for the Assessment of Diffuse Pollution Background Levels (DPBLs) in Functional Urban Areas: The PCE Case in Milano NW Sector

Using stable isotopes and major ions to identify recharge characteristics of the Alpine groundwater-flow dominated Triglavska Bistrica River

Evaluation of natural background levels of high mountain karst aquifers in complex hydrogeological settings. A Gaussian mixture model approach in the Port del Comte (SE, Pyrenees) case study

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