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Your search keyword '"Lambropoulou, Dimitra A."' showing total 149 results
Start Over Author "Lambropoulou, Dimitra A." Publisher elsevier b.v.
149 results on '"Lambropoulou, Dimitra A."'

10. Exploring patterns of antibiotics during and after COVID-19 pandemic in wastewaters of northern Greece: Potential adverse effects on aquatic environment

Author

Petromelidou, Styliani, Anagnostopoulou, Kyriaki, Koronaiou, Lelouda-Athanasia, Kalaronis, Dimitrios, Ainali, Nina Maria, Evgenidou, Eleni, Papageorgiou, Matthildi, Christodoulou, Aikaterini, Lioumbas, Ioannis, Kyzas, George Z., Mitropoulos, Athanasios, Bikiaris, Dimitrios N., and Lambropoulou, Dimitra A.

Published
2024
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29. Quality by design optimization of a liquid chromatographic-tandem mass spectrometric method for the simultaneous analysis of structurally heterogeneous pharmaceutical compounds and its application to the rapid screening in wastewater and surface water samples by large volume direct injection

Author

Renai, Lapo, Scordo, Cristina Vanessa Agata, Ghadraoui, Ayoub El, Santana-Viera, Sergio, Rodriguez, José Juan Santana, Orlandini, Serena, Furlanetto, Sandra, Fibbi, Donatella, Lambropoulou, Dimitra, and Bubba, Massimo Del

Published
2021
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42. Advanced suspect screening of tiamulin and its transformation products in waters: Assessing their persistence, mobility and toxicity.

Author

Anagnostopoulou, Kyriaki, Evgenidou, Eleni, and Lambropoulou, Dimitra A.

Subjects
EVIDENCE gaps, DEALKYLATION, HYDROLOGIC cycle, WATER quality, ENVIRONMENTAL databases, SCISSION (Chemistry), GROUNDWATER monitoring, GROUNDWATER analysis
Abstract

Persistent, Mobile, Organic Compounds (PMOCs) exhibit a propensity to disseminate within the water cycle and as a result, pose a significant threat to the quality of drinking water. To this point of view, considerable research has been initiated to explore the environmental behavior of the omnipresent tiamulin (TIA), being potential PMOC. In contrast to the parent compound (TIA), its transformation products (TPs) have received relatively limited attention, particularly in the context of their PM (persistent-mobile) characteristics. To address this research gap, an investigation into the phototransformation of TIA was conducted, through solar-simulated experiments in combination with Advanced Oxidation Processes (AOPs). To this end, an innovative suspect-screening methodology, involved comparison of the results obtained for the identified photo-TPs with existing literature data. This enabled us to construct an enhanced high-resolution mass spectrometry (HRMS) database for the purpose of environmental assessments of TIA and its TPs in the environment. In total, 32 TPs were identified, with 18 of them being pioneeringly reported. The principal transformation pathways appeared to involve hydroxylation, oxidation, dealkylation, and the cleavage of the C-O bond. Additionally, a comprehensive monitoring of TIA and its TPs in various environmental compartments, including samples from livestock units, leachates, surface water, and groundwater was accomplished. The highest concentration was observed in solid samples from the livestock unit at 2847 ng/g. Furthermore, both the in silico and in vitro methods to assess the toxicity of TIA and its TPs were performed. The results indicated that TIA and many TPs exhibit an alarming toxicity. Consequently, TIA can be classified as a potential PMOC, with a heightened potential for occurrence in different environmental matrices compared to ascertained PM chemicals. [Display omitted] [ABSTRACT FROM AUTHOR]

Published
2024
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43. Assessment of UV-C/peroxymonosulfate process for the degradation of parabens mixture: Efficiency under different conditions, transformation pathways and ecotoxicity evolution.

Author

Antonopoulou, Maria, Liles, Anastasios, Spyrou, Alexandra, Vlastos, Dimitris, Koronaiou, Lelouda-Athanasia, and Lambropoulou, Dimitra

Subjects
DISSOLVED organic matter, PARABENS, MICROPOLLUTANTS, MIXTURES
Abstract

The extensive use of parabens in various products in combination with the low removal when treated with conventional methods have resulted in their widespread environmental occurrence. Ethyl-paraben (EtP), methylparaben (MeP) and propylparaben (PrP) are characteristic compounds of this category. Over the last years, Sulfate Radical-based Advanced Oxidation Processes (SR-AOPs) have shown promising results for the removal of organic micropollutants. As parabens commonly coexist in mixtures in aquatic systems, this study investigates the efficiency of UV-C/PMS process to remove EtP, MeP and PrP as a mixture in ultrapure water (UPW) and wastewater (WW). UV-C/PMS process was found to be efficient and high removal percentages were observed for all the parabens. However, the removal was dependent on the complexity of the water matrix. Different ions, as well as the dissolved organic matter that exist in wastewater can significantly influence the degradation of the mixture of parabens in UV-C/PMS process. The transformation was found to proceed through hydroxylation, dealkylation, radical coupling and cleavage of the aromatic rings. Although the toxicity was increased at the first stages in both UPW and WW, almost complete detoxification was achieved after prolonged time accompanied by the degradation of all the generated TPs. UV-C/PMS was also found being able to significantly reduce the toxicity from the wastewater. [Display omitted] • UV-C/PMS was effective to remove ethyl-, methyl- and propyl- p-hydroxybenzoate ester. • The k app values were in the range of 6.27 × 10−2 − 10.51 × 10−2 min using 0.3 mM peroxymonosulfate. • The removal was found to be dependent on the complexity of the water matrix. • Hydroxylated, dealkylated, dimers and aliphatic transformation products were identified. • Low inhibitions 1.5% and 7.6% were achieved in ultrapure and wastewater after 60 and 180 min, respectively. [ABSTRACT FROM AUTHOR]

Published
2024
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