Estrogenic potency of endocrine disrupting chemicals and their mixtures detected in environmental waters and wastewaters

Durcik, Martina (author), Grobin, Andrej (author), Roškar, Robert (author), Trontelj, Jurij (author), Peterlin-Mašič, Lucija (author)

Endocrine disrupting chemicals such as natural and synthetic steroid hormones and bisphenols are among the most important pollutants in the aquatic environment. We performed an environmental chemical analysis of five Slovenian water samples, two rivers, one groundwater, and the influent and effluent of wastewater treatment plants, with a highly sensitive analysis of twenty-five endocrine-disrupting compounds belonging to the groups of natural hormones, synthetic hormones, and bisphenols. Since these compounds are simultaneously present in the environment, it is important to study their individual effects as well as the effects of mixtures. We investigated in vitro the estrogenic potency of selected natural and synthetic steroid hormones and bisphenols detected in surface, ground and waste water in Slovenia using the OECD-validated transactivation assay on the cell line Hela9903. We predicted their mixture effects using the concentration addition model and compared them with experimentally determined values. Two mixing designs were used: a balanced design in which chemicals were combined in proportion to their individual EC$_{50}$ values, and an unbalanced design with compounds in proportion to their measured concentrations in the environmental samples. The estrogenic effects of the experimental mixtures followed the concentration addition model. Real water samples exhibited weaker estrogenic effects, showing the great heterogeneity of the real water samples.

• Language: English
• Keywords: bisphenols, concentration addition, environmental water, estrogenic activity, hormones, mixtures
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FFA - Faculty of Pharmacy
• Publication status: Published
• Publication version: Version of Record
• Year: 2023
• Number of pages: 13 str.
• Numbering: Vol. 330, art. 138712
• PID: 20.500.12556/RUL-145648
• UDC: 612.43
• ISSN on article: 0045-6535
• DOI: 10.1016/j.chemosphere.2023.138712
• COBISS.SI-ID: 150677507
• Publication date in RUL: 04.05.2023

Record is a part of a journal

• Title: Chemosphere
• Shortened title: Chemosphere
• Publisher: Pergamon Press.
• ISSN: 0045-6535
• COBISS.SI-ID: 25213696

Licences

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

• Language: Slovenian
• Keywords: bisfenoli, dodatek koncentracij, okoljska voda, estrogena aktivnost, hormoni, mešanice, hormonski motilci, estrogeni

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P1-0208
• Name: Farmacevtska kemija: načrtovanje, sinteza in vrednotenje učinkovin

• Funder: ARRS - Slovenian Research Agency
• Project number: P1-0189
• Name: Farmacevtska tehnologija: od dostavnih sistemov učinkovin do terapijskih izidov zdravil pri otrocih in starostnikih