Tracking changing X-ray contrast media application to an urban-influenced karst aquifer in the Wadi Shueib, Jordan

Zemann, Moritz; Wolf, Leif; Grimmeisen, Felix; Tiehm, Andreas; Klinger, Jochen; Hötzl, H.; Goldscheider, Nico

doi:10.1016/j.envpol.2014.11.033

Cited by 33 publications

(10 citation statements)

References 52 publications

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“…Usually, wastewater and contaminated surface water, landfills, septic systems and sewer leakages are considered as common sources of PPCP contamination especially in karstic areas (Dodgen et al, 2017; Sui et al, 2015). High concentration of PPCPs in karst aquifers of Switzerland and Jordan was reported by Morasch (2013) and Zemann et al (2015), respectively. Moreover, Dodgen et al assessed PPCP concentration in karst aquifers of southwestern Illinois in the USA and found out that no single water quality or meteorological parameter was significantly associated with PPCP contamination across all site profiles.…”

Section: Groundwater Contamination and Remediation Techniquesmentioning

confidence: 93%

Assessment of groundwater quality and remediation in karst aquifers: A review

Kalhor

Ghasemizadeh

Rajić

et al. 2019

Groundwater for Sustainable Development

165

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Karst aquifers, capable of storing and transmitting large amount of water, are the main source of drinking water in many regions worldwide. Their excessive permeability leads to an enhanced vulnerability to retain and spread the contamination accordingly. From sustainability perspective, the environmental, economic and social impacts of karst contamination on water resources management are gaining more attention. In this study, an overview of hydrogeological processes and concepts regarding groundwater flow and contaminant transport in karstic systems is presented, followed by a short discussion on surface water and groundwater interaction. Due to the complexity of karstic systems, different approaches have been developed by researchers for investigating and understanding hydrogeological processes and groundwater behavior in karst which are reviewed herein. Additionally, groundwater contamination issues and the most common and effective remediation techniques in karstic terrains are discussed. Lastly, modeling techniques and remote sensing methods, as beneficial and powerful tools for assessing groundwater flow and contaminant transport in karst terrains, are reviewed and evaluated. In each section, relevant research works conducted for Puerto Rico are discussed and some recommendations are presented to complement the ongoing hydrogeological investigations on this island.

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Section: Groundwater Contamination and Remediation Techniquesmentioning

confidence: 93%

Assessment of groundwater quality and remediation in karst aquifers: A review

Kalhor

Ghasemizadeh

Rajić

et al. 2019

Groundwater for Sustainable Development

165

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“…The percentage frequency of detections for the different aquifer types varied depending on the compound, but was overall comparable for the karst and sandstone aquifers and was typically below 5% (Manamsa et al, 2016b). Comparing the results of two investigations of karst groundwater with surface water, detection frequency and concentrations of all detected PPCPs were higher in surface water compared to karst groundwater except for fenofibrate (Zemann et al, 2015) and acesulfame-K (Doummar and Aoun, 2018b).…”

Section: Occurrence Of Eocs In Karst Aquifersmentioning

confidence: 99%

“…In other cases, the start date for the use of a particular EOC, such as artificial sugars or pharmaceuticals, can be obtained for a particular country or region and may help constrain the residence time of the groundwater system under investigation. Zemann et al (2015) found the most frequently detected compounds in karst groundwater samples were two standard substances used in Xray diagnostics, diatrizoic acid (DA), whose use has been significantly reduced since 2008, and iopamidol (IP), which is the usual replacement for DA. During this five-year investigation, DA was detected only a few times in wastewater, and IP occurred more commonly in wastewater and groundwater, suggesting a more recent wastewater input to groundwater.…”

Section: Identification Of Longer Term Storage In Karstmentioning

confidence: 99%

“…However, even in highly karstified aquifers, contaminants can be attenuated. Studies of EOCs have contributed to understanding of attenuation mechanisms (Einsiedl et al, 2010;Hillebrand et al, 2012b;Zemann et al, 2015). In particular, studies have considered attenuation via diffusion between different void types (e.g.…”

Section: Attenuation Mechanisms In Karst Aquifersmentioning

confidence: 99%

“…conduits, fissures and fractures) (Dvory et al, 2018a(Dvory et al, , 2018bEinsiedl et al, 2010). Other studies have indirectly provided information on attenuation processes (Bekele et al, 2009;Doummar and Aoun, 2018b;Heinz et al, 2009;Hillebrand et al, 2012bHillebrand et al, , 2015Katz et al, 2010;Reh et al, 2013;Zemann et al, 2015). Einsiedl et al (2010) used two pharmaceuticals, diclofenac and ibuprofen, from wastewater effluents in springs, to compliment…”

Section: Attenuation Mechanisms In Karst Aquifersmentioning

confidence: 99%

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Emerging organic contaminants in karst groundwater: A global level assessment

Reberski

Terzić

Maurice

et al. 2022

Journal of Hydrology

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A quarter of the world's population uses groundwater from karst aquifers. A range of emerging organic contaminants (EOCs) are considered a potential threat to water resources and dependant ecosystems, and karst aquifers are the most vulnerable groundwater systems to anthropogenic pollution. This paper provides the first global compilation (based on 50 studies) of EOCs in karst aquifers and explores EOC occurrence and the use of EOCs to understand karst systems. Of the 144 compounds detected in the reviewed studies, the vast majority in karst groundwater are pharmaceuticals and pesticides. Maximum concentrations of compounds varied over five orders of magnitude, and nearly half of the detected compounds exceed 100 ng/L. Karst groundwater is shown to have lower frequency of detection and lower concentrations compared to surface waters and local shallow intergranular aquifers, but overall higher concentrations compared to other major aquifer types. A growing number of studies have demonstrated the utility of EOCs and some legacy compounds for groundwater quality assessment and as tracers for characterising karst systems. They can improve understanding of vulnerability, storage, attenuation mechanisms, and in some cases have been used to assist with catchment delineation. This is a growing research area for karst hydrogeology, and more research is needed to understand EOC contamination of karst aquifers, and to develop EOCs as tracers within karst to improve our understanding of this critical water resource.

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