Person: Kerndorff, Alexander
Lade...
E-Mail-Adresse
Geburtsdatum
Forschungsvorhaben
Organisationseinheiten
Berufsbeschreibung
Nachname
Kerndorff
Vorname
Alexander
Name
3 Ergebnisse
Suchergebnisse
Gerade angezeigt 1 - 3 von 3
Veröffentlichung Occurrence of microplastics in the Danube River - a first screening(2021) Asenova, Mina; Bannick, Claus Gerhard; Bednarz, Marius; Kerndorff, Alexander; Obermaier, Nathan; Ricking, MathiasPlastics, and microplastics in particular, are still part of scientific and regulatory discussions. Their inputs from land ultimately end up in the oceans, where they remain for a long time. River systems represent an important path of entry into the oceans. The Danube is the second largest river in Europe and can therefore be an example for the occurrence of plastic in other large river systems. In JDS4 a comprehensive screening of microplastics was carried out over the entire course of the river. Sampling was performed by means of deploying sedimentation boxes into the river for 14 days; followed by thermo-analytical detection (TED-GC/MS) for determination of the total content of various plastic polymers in the collected suspended particulate matter samples. For the first time, a baseline of pollution by microplastics in the Danube River Basin has been established. In all samples almost, all analyzed polymers were detected and quantified, whereas there is no clear trend along the Danube with increasing or decreasing contents. The contents ranged between 0.05 - 22.24, 0.00 - 0.45, 0.00-1.03 and 0.00 3.32 for PE, PP, SBR and PS [(micro)g/mg] SPM, respectively. Quelle: A shared analysis of the Danube River : joint Danube survey 4 ; scientific report / Editors: Igor Liška [and five others]. - Vienna : International Commission for the Protection of the Danube River, 2021. - 1 Onlineresource (562 pages) : Illustrationen. - E-Book; Dateigröße / Dateiumfang: 44,09 MB. - ISBN 978-3-200-07450-7, Seite 487Veröffentlichung Garment ageing in a Laundry care process under household-like conditions(2023) Heller, Claudia; Altmann, Korinna; Bannick, Claus Gerhard; Braun, Ulrike; Kerndorff, AlexanderThis study reflects typical consumer textile washing behaviour while taking into account existing standards in the household appliance and garment industries. Two garments were washed repeatedly with artificial dirt and detergent 30 times. The collected washing water was separated using fractional filtration. Textile physical tests were used to follow property changes of the garments, the microplastic release is determined using thermoextraction/desorbtionâ€Ìgas chromatography/mass spectrometry and the total organic carbon was measured as a sum parameter for the organic bonded carbon. This article shows the importance of a reality-based approach when investigating microplastics of textile origin in the laundry care process. Deposits of detergent and dirt on the textiles were detected. The total mass of sieve residues was much higher than the release of synthetic polymers. The cotton content of the garments causes a much higher fibre release than synthetic fibres. Both will lead to false results by purely gravimetric analysis because nonpolymer fibres will be included microplastic mass. The results cannot be generalised only by the main polymer type, knowledge of the textile construction must be included for final evaluation. © 2023 Wiley-VCH GmbH.Veröffentlichung A simple model approach for the desorption of DDT and related compounds from contaminated sediment to plastic polymers(2021) Bannick, Claus Gerhard; Kerndorff, Alexander; Braun, Ulrike; Obermaier, Nathan; Ricking, Mathias