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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.jhydrol.2023.129583
|2 doi
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|a pubmed24n1540.xml
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|a (NLM)37334317
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Lukač Reberski, Jasmina
|e verfasserin
|4 aut
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|a Emerging organic contaminants in springs of the highly karstified Dinaric region
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|c 2023
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 20.09.2024
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors.
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|a Emerging organic contaminants (EOCs) have become of increasing interest due to concerns about their impact on humans and the wider environment. Karst aquifers are globally widespread, providing critical water supplies and sustaining rivers and ecosystems, and are particularly susceptible to pollution. However, EOC distributions in karst remain quite poorly understood. This study looks at the occurrence of EOCs in the Croatian karst, which is an example of the "classical" karst, a highly developed type of karst that occurs throughout the Dinaric region of Europe. Samples were collected from 17 karst springs and one karst lake used for water supply in Croatia during two sampling campaigns. From a screen of 740 compounds, a total of 65 compounds were detected. EOC compounds from the pharmaceutical (n = 26) and agrochemical groups (n = 26) were the most frequently detected, while industrials and artificial sweeteners had the highest concentrations (range 8-440 ng/L). The number of detected compounds and the frequency of detection demonstrate the vulnerability of karst to EOC pollution. Concentrations of 5 compounds (acesulfame, sucralose, perfluorobutane sulfonate, emamectin B1b, and triphenyl phosphate) exceeded EU standards and occurred at concentrations that are likely to be harmful to ecosystems. Overall, most detections were at low concentrations (50 % <1 ng/L). This may be due to high dilution within the exceptionally large springs of the Classical karst, or due to relatively few pollution sources within the catchments. Nevertheless, EOC fluxes are considerable (10 to 106 ng/s) due to the high discharge of the springs. Temporal differences were observed, but without a clear pattern, reflecting the highly variable nature of karst springs that occurs over both seasonal and short-term timescales. This research is one of a handful of regional EOC investigations in karst groundwater, and the first regional study in the Dinaric karst. It demonstrates the need for more frequent and extensive sampling of EOCs in karst to protect human health and the environment
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|a Journal Article
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|a Dinaric karst
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|a Drinking water resources
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|a Emerging organic contaminants
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|a Groundwater
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| 650 |
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|a Karst aquifers
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1 |
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|a Selak, Ana
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lapworth, Dan J
|e verfasserin
|4 aut
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1 |
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|a Maurice, Louise D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Terzić, Josip
|e verfasserin
|4 aut
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1 |
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|a Civil, Wayne
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Stroj, Andrej
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of hydrology
|d 1998
|g 621(2023) vom: 14. Juni, Seite 129583
|w (DE-627)NLM098183508
|x 0022-1694
|7 nnns
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| 773 |
1 |
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|g volume:621
|g year:2023
|g day:14
|g month:06
|g pages:129583
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|u http://dx.doi.org/10.1016/j.jhydrol.2023.129583
|3 Volltext
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