Online-Ressource | |
Verfasst von: | Wölz, Jan [VerfasserIn] |
Brack, W. [VerfasserIn] | |
Moehlenkamp, C. [VerfasserIn] | |
Claus, E. [VerfasserIn] | |
Braunbeck, Thomas [VerfasserIn] | |
Hollert, Henner [VerfasserIn] | |
Titel: | Effect-directed analysis of Ah receptor-mediated activities caused by PAHs in suspended particulate matter sampled in flood events |
Verf.angabe: | J. Wölz, W. Brack, C. Moehlenkamp, E. Claus, Th. Braunbeck, H. Hollert |
E-Jahr: | 2010 |
Jahr: | 15 July 2010 |
Umfang: | 7 S. |
Illustrationen: | Diagramme |
Fussnoten: | Gesehen am 15.03.2024 |
Titel Quelle: | Enthalten in: The science of the total environment |
Ort Quelle: | Amsterdam [u.a.] : Elsevier Science, 1972 |
Jahr Quelle: | 2010 |
Band/Heft Quelle: | 408(2010), 16 vom: Juli, Seite 3327-3333 |
ISSN Quelle: | 1879-1026 |
Abstract: | Suspended particulate matter (SPM) sampled during a flood event in the year 2004 at the rivers Neckar and Rhine (Southwest Germany) was assessed for aryl hydrocarbon receptor (AhR)-mediated activities using EROD induction in the rainbow trout liver cell line RTL-W1. All EROD inductions were normalized to the positive control TCDD and given as bio-TEQ values. Since all samples indicated elevated AhR-mediated toxicities, an effect-directed analysis (EDA) was applied to identify substances causing the effects. In three primary fractions (F1 to F3) non-polar aliphatics, non-polar aromatic substances and more polar substances were separated. Fraction F2, co-eluting with non-polar polyaromatic substances (PACs) including polycyclic aromatic hydrocarbons (PAHs) gave highest AhR-agonistic effects and, thus, were sub-fractionated into seven secondary fractions (F2-1 to F2-7). Fraction F2-1, co-eluting with PCBs and PCDD/Fs, did not cause AhR-agonist activities. F2-2 to F2-4 containing PACs of less than 16 aromatic C-atoms produced minor activities. Highest inductions were detected with fraction F2-5 to F2-7, containing substances of more than 16 aromatic C-atoms (bio-TEQs up to approximately 4500pg/g). Concentrations and relative potencies (REPs) of priority EPA-PAHs allowed the calculation of chemical toxicity equivalent concentrations (chem-TEQ values). Based on the chem-TEQs, EPA-PAHs explained between 5 and 58% of crude extract bio-TEQs from both rivers. Whereas fractions F2-1 to F2-4 indicated no biological activities, EPA-PAHs in fraction F2-5 to F2-7 accounted for 2 to 137% of AhR-related activities. |
DOI: | doi:10.1016/j.scitotenv.2010.03.029 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt. Volltext: https://doi.org/10.1016/j.scitotenv.2010.03.029 |
Volltext: https://www.sciencedirect.com/science/article/pii/S0048969710003001 | |
DOI: https://doi.org/10.1016/j.scitotenv.2010.03.029 | |
Datenträger: | Online-Ressource |
Sprache: | eng |
Sach-SW: | Ah receptor |
Dioxin-like activity | |
Effect-directed analysis | |
Flood | |
Fractionation | |
PAH | |
Suspended particulate matter | |
K10plus-PPN: | 1883605083 |
Verknüpfungen: | → Zeitschrift |