TY - CONF A1 - Babutzka, Martin T1 - Field exposure studies under sheltered and unsheltered conditions at different test sites in northern and eastern Germany: Update after 5 years of exposure N2 - A series of field exposure tests according to ISO 9223 up to 9226 was carried out at different locations to determine the corrosivity and the corrosion progress of different test sites throughout northern and eastern Germany. Standard test specimens of steel, zinc, copper and aluminium were exposed to rural, city and marine atmosphere at test sites of the Bundesanstalt für Materialforschung und -prüfung (BAM). Test sites at city atmosphere comprised exposure on a rooftop, next to a highly frequented road and directly at a motorway. Exposure under marine conditions was carried out at Heligoland in the North Sea. The specimens were stored under sheltered and unsheltered conditions on each test site, respectively. Corrosion rates after the first year of field exposure were determined and used for the classification of the atmospheres and the test sites regarding the corrosivity category. Results after the first year of exposure were presented at the EUROCORR 2018 in Cracow. The current presentation will present an update of results of the systematic study after five years of exposure. The corrosion progress and the mass loss of the standard metals steel, zinc, copper and aluminium will be presented and discussed with respect to the atmospheric conditions and the time of wetness at the test sites. In addition, the difference between sheltered and unsheltered conditions will be discussed. T2 - EUROCORR 2022 CY - Berlin, Germany DA - 28.08.2022 KW - Atmospheric Corrosion KW - Atmosphärische Korrosion KW - Korrosionsuntersuchungen KW - Corrosion testing PY - 2022 AN - OPUS4-55602 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Oberbeckmann, Sonja T1 - The microplastic microbiome – an example for the intersection of biology and material research N2 - Biofilms live on the interface between human-made materials and the environment. Using aquatic plastics as an example, we explore their composition, their interactions with the plastic substrate, and their potentially useful functional roles. The presentation will further discuss the importance of considering plastic-associated pollutants in the investigation of such biofilms. T2 - Microbiological Colloquium ICBM CY - Oldenburg, Germany DA - 10.07.2025 KW - Microplastics KW - Microbiome KW - Biofilm PY - 2025 AN - OPUS4-63836 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Traub, Heike T1 - Elemental mapping to study the interaction of MRI contrast agents with extracellular matrix components N2 - Non-specific Gd-based contrast agents (GBCAs) have long been routinely used in clinical magnetic resonance imaging (MRI) diagnostics. Nevertheless, the interaction of such contrast agents with tissue components is not yet fully understood. Typically, they go into extracellular space. The extracellular matrix (ECM) is a three-dimensional network of macromolecules providing structural and biochemical support of the surrounding cells in all mammalian tissues. It is composed of structural proteins (e.g., collagen, elastin) and proteoglycans, which consist of glycosaminoglycans (GAGs) covalently bound to a protein core. GAGs are long, linear polysaccharides composed of repeating disaccharide units that differ in molecular mass, disaccharide structure and degree of sulfation. Many diseases, including inflammation, fibrosis, and tumor invasion, are associated with characteristic ECM changes, especially at an early stage of disease development. As disease severity increases, the amount of one or more different GAG types in the ECM and the extent of GAG sulfation increases. Characteristic of GAGs is their ability to form complexes with cations, e.g., with lanthanides. Thus, GAGs could be a potential binding partner for GBCA molecules as a whole or for dechelated Gd. Currently, there are still many unanswered questions about the interaction of contrast agents with ECM components. In this study, therefore, the uptake and distribution of ionic Gd and various linear and macrocyclic GBCAs was investigated in spheroids as model systems mimicking the complex physiologically relevant tissue microenvironment. Chinese hamster ovary (CHO) cells and CRL-2242 cells, a CHO mutant that does not produce sulfated GAGs, were used to prepare spheroids. Afterwards the spheroids were incubated with gadolinium chloride and GBCAs. For elemental mapping laser ablation inductively coupled plasma time-of-flight mass spectrometry (LA-ICP-TOFMS) and synchrotron radiation nano X-ray fluorescence spectroscopy (syn-nanoXRF) were used. Although all spheroids were exposed to identical Gd concentrations, differences were observed in the spatial distribution and the amount of Gd taken up. After incubation with linear and macrocyclic GBCAs, Gd is detected in the interior of both types of spheroids. Furthermore, differences in the Gd amount were found depending on the GBCA used. In contrast, incubation with gadolinium chloride leads to an Gd enrichment in the outer regions of the spheroids as well as to much higher Gd contents compared to incubation with GBCAs. Both LA-ICP-TOFMS and syn-nanoXRF can make an important contribution to better understand the relationship between the affinity of GBCAs and ECM components. However, to elucidate such complex interactions, further studies are needed, also with other (bio-)analytical techniques. T2 - Euroanalysis 2025 CY - Barcelona, Spain DA - 31.08.2025 KW - ICP-MS KW - Laser ablation KW - Contrast agent KW - Spheroid KW - Extracellular matrix PY - 2025 AN - OPUS4-64143 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schoknecht, Ute A1 - Kalbe, Ute A1 - Happel, O. T1 - Combination of leaching tests with ecotoxicity and chemical analysis – Lessons learnt N2 - The presentation describes analytical methods to characterize eluates from leaching tests and identify organic substances in leachates. Chances to obtain complementary information from ecotoxtests and chemical analysis are discussed. T2 - Workshop: Ecotoxicological evaluation of construction products – test results, implementation in Guidance, Technical Standards and Ecolabelling CY - Online meeting DA - 21.03.2022 KW - Leaching KW - Ecotoxicity KW - Construction products PY - 2022 AN - OPUS4-55276 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - van den Berg, A. A1 - Adriaans, K. A1 - Hoppener, E. A1 - Parker, L. A1 - Boersma, A. A1 - Altmann, Korinna A1 - Legler, J. A1 - Pieters, R. T1 - Inflammation-related key events stimulated by micro- and nanoplastics N2 - The presence of micro- and nanoplastic particles (MNP) in our environment has raised increasing public and political concern. Increasing evidence suggests that humans are exposed to these MNP, mostly via inhalation or ingestion. The EC-Horizon project POLYRISK (https://polyrisk.science) aims to establish an IATA/AOP-based tiered approach to assess human health risks of MNP. In our research, we focus on assessing immunotoxicological effects of MNP. We have tested a series of primary, secondary, environmentally aged (incubated in River Rine water) and chemically altered MNP for their potential to affect dendritic cells or macrophages. MNP used in this study include primary and weathered PS, secondary PVC, PA, PP (with or without talc) and PE. The secondary PE and PP (w/o talc) particles appeared to have oxidized groups on their surface. Data shows that MNP can be engulfed by macrophages (PMA-stimulated human THP1 cells) and human blood-derived dendritic cells (DCs). The effects of virgin as well as secondary MNP (0, 10 or 100 μg/ml) on THP1 macrophages were limited to decrease of mitochondrial activity (Alamar blue), increase of cellular leakage (LDH), and stimulation of lysosomal activity. None of these MNP stimulated gene expression of NFκB or release of pro-inflammatory cytokines (IL-6, TNFα, IL-1β). On the other hand, secondary PP and PE with oxidized surface groups did increase NFκB gene expression and release of cytokines by THP1 macrophages. Virgin and weathered PS particles were tested using DCs, and only weathered PS did stimulate DC activity (increased costimulatory molecules CD83, CD86) and as consequence allogeneic T cells. DC activation appeared to result from environmental contaminants. In conclusion, of all MNPs tested only those that contained active surface groups or environmental components appeared to be immunostimulatory, whereas primary and secondary MNP rather reduced macrophage activity and viability (at relatively high concentrations of 100 μg/ml). Further research is needed to reveal molecular mechanisms and to translate in vitro findings to real-world exposure scenarios. T2 - 58th Congress of the European Societies of Toxicology (EUROTOX 2024) CY - Copenhagen, Denmark DA - 08.09.2024 KW - Micro- and nanoplastic particles (MNP) KW - Human health risks KW - Immunotoxicological effects PY - 2024 DO - https://doi.org/10.1016/j.toxlet.2024.07.052 AN - OPUS4-63363 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Plastik in Böden: Mikroplastik-Ergebnisse N2 - In diesem Vortrag geht um die Vorstellung der Ergebnisse des UBA Projektes Plastik in Böden. Es werden Mikroplastik-Gehalte in verschiedenen Böden präsentiert. T2 - Fachgespräch "Plastik in Böden" CY - Online meeting DA - 28.03.2022 KW - Mikroplastik KW - Mikroplastik Böden KW - Mikroplastik-Analytik PY - 2022 AN - OPUS4-54648 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Mikroplastik an der BAM: TED-GC/MS und Referenzmaterialien N2 - Thema ist die Funktionsweise der TED-GC/MS als Methode für die Mikroplastik-Detektion sowie die Herstellung dazugehöriger Referenzmaterialien an der BAM T2 - 25. Kolloquium Massenspektrometrie von Polymeren CY - Online meeting DA - 17.06.2021 KW - Mikroplastik KW - TED-GC/MS KW - Referenzmaterial PY - 2021 AN - OPUS4-52835 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalbe, Ute T1 - Wie naturnah simulieren die Elutionsverfahren? N2 - Die Untersuchung altlastverdächtiger Flächen umfasst viele einzelne Schritte von der Probenahme über die Probenvorbehandlung bis hin zur eigentlichen Analyse, die zur Ergebnisunsicherheit beitragen. Beim Vergleich der Ergebnisse mit Bewertungsmaßstäben, um Entscheidungen zur Bewertung von Altlasten zu treffen, sind diese Faktoren zu berücksichtigen. Die Rolle von verschiedenen Unsicherheitskomponenten wird mit Blick auf Elutionsverfahren diskutiert. T2 - Messen, schätzen und bewerten – Theorie und Praxis der Altlastenbewertung: Online-Altlastenseminar des LLUR CY - Online meeting DA - 27.09.2021 KW - Altlasten KW - Schadstofftransfer KW - Elutionsverfahren KW - BBodSchV KW - Ergebnisunsicherheit PY - 2021 AN - OPUS4-53623 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Mikroplastik Referenzmaterial und erste Vergleichsuntersuchungen N2 - Hierbei geht es um die Vorstellung von ersten Möglichkeiten um Referenzmaterial für die Mikroplastik-Analytik herzustellen und die Ergebnisse erster Vergleichsversuche. T2 - EUROLAB-D Workshop: Mikroplastik in der Praxis CY - Online meeting DA - 30.11.2021 KW - Mikroplastik KW - Referenzmaterial KW - Vergleichsversuche PY - 2021 AN - OPUS4-53880 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Systemverständnis und Untersuchungsstrategien von Kunststoffeinträgen in die Umwelt – Ergebnisse des RUSEKU-Forschungsprojektes N2 - Ziel des Vortrages ist die Vermittlung der Herausforderungen der Mikroplastik-Analytik sowie der Harmonisierung der Analytik und des Ergebnistransfers in die Normung. T2 - Jahresabschluss-Sitzung GA "Mensch und Umwelt" CY - Online meeting DA - 24.11.2021 KW - Mikroplastik KW - Mikroplastik-Analytik PY - 2021 AN - OPUS4-53830 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Reference material candidates for microplastic analysis N2 - Every day, there are new headlines in the media about microplastics (1-1000 µm, ISO/TR 21960:2020) and nanoplastics (< 1 µm, ISO/TR 21960:2020) findings all over the planet with high variations in particle number and mass. The challenges in analytics are very complex, e.g. representative sampling, non-destructive sample preparation with concentrated particles and homogeneous distribution and true detection. All together lead to lacks in harmonization and results, which are hardly comparable. On the other hand, monitoring of microplastics is mandatory in the future strictly regulated by the EU commission in the Drinking water and Wastewater Framework Directive. One step to accurate and precise results will be the development of suitable reference materials mimicking particles in the environment. BAM developed test materials, which are produced by mixing a small portion of microplastic particles with a water-soluble matrix. After solid phase dilution and homogenisation small portions are pressed into tablets and bottled in glass vials (Figure 1). These tablets are well characterized with particle size distribution and SEM images. Additionally, they are tested as reference material candidate according to homogeneity and stability for particle number with µ-IR and µ-Raman as well as on particle mass with Py-GC/MS and TED-GC/MS after ISO Guide 35. Results are promising. The material passed the homogeneity control. No changes are observed within 6 months of storage. The same tested reference material is finally used in sample preparation experiments, where environmental suspended particular matter from surface water or baby milk powders are spiked with the tablets. T2 - ESOPS CY - Berlin, Germany DA - 09.09.2024 KW - Microplastics KW - TED-GC/MS KW - Reference materials KW - Polymer 3R KW - Tablets PY - 2024 AN - OPUS4-61017 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiesner, Yosri T1 - Sample preparation methods of food and environmental matrices for microplastics analysis using TED-GC-MS N2 - Microplastic determination in food and surface waters will be increasingly carried out in the course of future directives and regulations, such as EU drinking water directive and wastewater directive. In addition to unique identification, this also includes reliable quantification. Two different methodological approaches are used for the quantification. With vibrational spectroscopic techniques such as µ-FTIR and µ-Raman, results are obtained in the form of particle number, size and shape. Instead, with thermal analytical technics as TED-GC/MS and Py-GC-MS the results are expressed as mass concentration.. Both concepts offer different information variables. In terms of routine monitoring, it is necessary to obtain a rapid sequence from sampling to the detection result. For this reason, this study focuses on TED-GC/MS and Py-GC-MS. Even though thermal analytical methods generally require less sample preparation, some matrices require it. This is usually done if the analyte concentration is too low or if strong matrix effects such as signal suppression and false positive signals occur. This talk presents advanced sample preparation for baby milk powder as food example and density separation for microplastic analysis in surface waters. A preparation protocol based on citric acid was selected for the milk to remove as much as possible of the matrix. The low pH value leads to a fast and effective protein precipitation and minimizes filter cake formation, making filtration possible, reduces the number and the amount of compounds in detection and hence, simplifies the evaluation. Microplastics in surface waters and sediments must be concentrated not only because of their low microplastics mass content but also in terms of homogeneity. For this purpose, a density separation was carried out using a concentrated sodium iodide solution, which led to a high reduction of the inorganic mineral matrix and made possible to obtain a representative subsample of initial masses of up to 80 g. T2 - 22nd European Symposium on Polymer Spectroscopy (ESOPS 24) CY - Berlin, Germany DA - 08.09.2024 KW - Microplastics KW - Harmonization KW - Preparation method microplastics KW - Detection method microplastics PY - 2024 AN - OPUS4-61015 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Round Table for Expert Stakeholders​ - The Transfer of Research into Policy and Regulation N2 - This talk gives an overwiew about the material and physico chemical characterisation of materials developed for the EU founded project PlasticsFate. Particles in 1st and 2nd sample set are presented next to their characterisatin and documentation in data sheets. Some materials are prepared for reference material and used in an interlaboratory comparison. Results are briefly discussed. T2 - Stakeholder Workshop PlasticsFate CY - Bühl, Germany DA - 17.09.2024 KW - Microplastics KW - Reference materials KW - Polymer 3R KW - Interlaboratory comparison PY - 2024 AN - OPUS4-61088 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Plastik in Böden: Mikroplastik-Analytik N2 - Im Vortrag wir eine Methode zur Analyse von Mikroplastik in Böden dargestellt. Es geht dabei um die Probenvorbereitung und Detektion. T2 - Fachgespräch "Plastik in Böden" CY - Online meeting DA - 28.03.2022 KW - Mikroplastik KW - TED-GC/MS KW - Mikroplastik-Analytik KW - Methodenentwicklung Böden PY - 2022 AN - OPUS4-54646 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Harmonisation efforts of the CUSP projects N2 - The talk is about harmonisation approaches within CUSP. First the five H2020 projects for research on risk assessment regarding microplastics topic were presented. Secondly, harmonisation process were discussed. T2 - VAMAS SC 47 Meeting CY - Turin, Italy DA - 19.10.2022 KW - Microplastics KW - Harmonisation KW - Nanoplastics KW - H2020 KW - Risk assessment PY - 2022 AN - OPUS4-56077 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, U. T1 - Analysis of Microplastics in Soil: Harmonisation and Standardisation - a first approach N2 - The talk is about microplastics in soil. Some results were presented with mainly state of the art according to microplastics in standardization. T2 - International Conference Microplastics in Soils CY - Berlin, Germany DA - 19.10.2022 KW - Microplastics KW - Microplastics standardisation KW - Microplastics in soil PY - 2022 AN - OPUS4-56078 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meurer, Maren T1 - Accelerated solvent extraction to identify an accurate polyethylene mass value in microplastic analytics N2 - It is of high priority to capture the extent of microplastics (MP) contamination for understanding its impact and consequences to our environment. However, due to a lack of standardized methods, MP analysis as well as its quality assurance, is still a challenge. The thermal extraction desorption-gas chromatography/-mass spectrometry (TED-GC/MS) as a novel innovative thermoanalytic method can detect MP particles in environmental samples based on their decomposition products. According to MP analysis, a distinctively larger polyethylene (PE) content in comparison to other synthetic polymers was detected in environmental samples. Various substances within the matrix which have a similar molecular structure to PE, like fats and oils, might interfere with its marker and lead to an overestimation. In this investigation an automated extraction method, the accelerated solvent extraction (ASE), is introduced as quality control tool before TED-GC/MS measurement. Thereby, not the extract like usually used, but the solid filtrate is analyzed. The aim is to clean the environmental samples from solvent removable compounds which could lead to false positive signals and thus receive a more accurate PE mass. Consequently, a sample mimicking environmental samples with a defined matrix and a known polymer mass was generated. The common polymers polyethylene, polypropylene, polystyrene and styrene-butadiene rubber, used as an indication for tire wear, were added to the matrix. Different parameters for ASE extraction were varied such as different solvents, filters and purge time. Finally, a PE recovery rate of 91 % after extraction could be reached. T2 - Micro 2022 CY - Online meeting DA - 14.11.2022 KW - PE KW - ASE KW - TED-GC/MS PY - 2022 AN - OPUS4-56347 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, U. T1 - Thermoanalytical methods to measure mass in microplastics N2 - The talk adresses the use of thermoanalytical methods in microplastics analysis. T2 - EUROLAB webinar: MICROPLASTICS: regulations, standards and the role of laboratories CY - Online meeting DA - 15.02.2023 KW - TED-GC/MS KW - Thermoanalytical methods KW - Microplastic mass PY - 2023 AN - OPUS4-57009 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Needs, concepts and state of the art: Top-down production of reference materials for micro- and nanoplastics and their use in harmonisation processes N2 - The talk explains the top-down production of materials suitable for mircoplastics and nanoplastics and the use in ILCs. T2 - EUROLAB webinar: MICROPLASTICS: regulations, standards and the role of laboratories CY - Online meeting DA - 15.02.2023 KW - Microplastics KW - Nanoplastics KW - ILC KW - Milling PY - 2023 AN - OPUS4-57008 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - PlasticsEurope - plastic powders - Reference materials N2 - The talk gives ideas about possible collaboration between BAM and PlasticEurope and their BRIGID project. T2 - Project meeting of BRIDGIT project of PlasticsEurope CY - Online meeting DA - 01.02.2023 KW - Microplastics KW - PlasticEurope PY - 2023 AN - OPUS4-57012 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Stakeholder Workshop – Plastictrace WP1 N2 - The talk is about WP1 in the PlasticTrace project funded by Euromat. The projects harmonizes microplastic analysis by developing SOPs and reference materials. WP1 is responsible for material selection and preparation. All particles are homogeneity and stability checked according to ISO guide 35. T2 - Stakeholder workshop of PlasticTrace project CY - Online meeting DA - 14.12.2022 KW - Microplastic KW - Microplastics standardisation KW - Reference materials PY - 2022 AN - OPUS4-56772 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Release of synthetic fibres during washing of typical household textiles: Findings from washing machine tests and resulting policy recommendations N2 - This talk summarizes the experimental setup and the results of one washing experiment under realistic conditions according to microplastic fiber release. T2 - Tackling microplastics in the environment CY - Brussels, Belgium DA - 09.03.2023 KW - Microplastics KW - Fibers of textile origin KW - Washing machine KW - Microplastic fibre release PY - 2023 AN - OPUS4-57204 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - ILC on Laser diffraction - preliminary results N2 - This presentation addresses an interlaboratory comparison on size of polymeric particles (microplastics) measured by laser diffraction. Two microplastic particles were measured separately and once as mixture. Evaluation was done with Fraunhofer and Mie. Here, the first results are presented. T2 - CUSP Annual Meeting CY - Utrecht, Netherlands DA - 12.09.2023 KW - Microplastics KW - Laser diffraction KW - Polymer 3R KW - Size distribution KW - Polymer size PY - 2023 AN - OPUS4-58318 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kittner, Maria T1 - Bewertung der Freisetzung von Mikroplastik aus Sportböden auf Kunststoffbasis N2 - Projektvorstellung "Bewertung der Freisetzung von Mikroplastik aus Sportböden auf Kunststoffbasis": Motivation, Konzept, Umsetzung, erste analytische Ergebnisse der TED-GC/MS T2 - 24. Projekttage der Zukunft Bau Forschungsförderung CY - Bonn, Germany DA - 13.06.2023 KW - Mikroplastik KW - TED-GC/MS KW - Kunststoffrasen KW - Lysimeter KW - Beschleunigte Alterung PY - 2023 AN - OPUS4-58441 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - What can thermoanalytical methods do for you ? N2 - This presentation summarizes outcomes of the CUSP projects POLYRISK and PlasticsFatE according to thermoanalytical methods.It highlights the importants of analytical methods to measure physical and chemical properties of the test materials. These informations are neccessary for interpretation of the toxicological test results. T2 - CUSP conference CY - Utrecht, Netherlands DA - 14.09.2023 KW - Microplastics KW - TED-GC/MS KW - CUSP KW - Polymer 3R KW - Thermoanalytical methods PY - 2023 AN - OPUS4-58312 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Welche Rolle spielen Textilien als Mikroplastik-Quelle im Abwasser? Was kann man dagegen tun? N2 - Diskutiert wird die Frage, ob Textilien gewaschen in der Waschmaschine ein Eintragspfad von Mikroplastik in die Umwelt sind. Nachgewiesen wird dies experimentell über Messungen zur Massenbestimmung mit der TED-GC/MS. T2 - DWA-Seminar: Mikroplastik in der (Siedlungs-)Wasserwirtschaft – Einordnung und Handlungsempfehlungen für die Praxis CY - Online meeting DA - 29.11.2023 KW - Mikroplastik KW - TED-GC/MS KW - Waschmaschine KW - Polymer 3R PY - 2023 AN - OPUS4-59279 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Current projects in risk assessment and harmonisation N2 - The talk gives an overview about EU projects currently running for risk assessment and harmonisation in microplastic analysis. T2 - Micro- and Nanoplastics CY - Halle (Saale), Germany DA - 01.11.2023 KW - Microplastics KW - Harmonisation in microplastics KW - Polymer 3R PY - 2023 AN - OPUS4-58766 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Welche Rolle spielen Textilien als Mikroplastik-Quelle im Abwasser? N2 - In diesem Vortrag wird die Rolle der Waschmaschine als Eintragspfad von Mikroplastik in das Abwasser diskutiert und eine experimentelle Annäherung an das Problem beschrieben. T2 - Wasserwirtschaftliches Kolloquium der TU Berlin CY - Berlin, Germany DA - 14.12.2023 KW - Mikroplastik KW - TED-GC/MS KW - Waschmaschine PY - 2023 AN - OPUS4-59278 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Visileanu, E. T1 - Methods for the collection and characterization of airborne particles in the textile industry N2 - The presentation summarizes possibilities to sample airborne micro and nanoplastic particles. An example of a textil company is shown. T2 - 5th International Conference on Human Systems Engineering and Design: Future Trends and Applications (IHSED 2023 CY - Dubrovnik, Croatia DA - 27.09.2023 KW - Microplastics KW - Polymer 3R KW - Textile company PY - 2023 AN - OPUS4-58561 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kittner, Maria T1 - Bewertung der Freisetzung von Mikroplastik aus Sportböden auf Kunststoffbasis N2 - Projektvorstellung "Bewertung der Freisetzung von Mikroplastik aus Sportböden auf Kunststoffbasis": Konzept, Umsetzung, erste Mikroplastik-Ergebnisse. T2 - Projektbegleitkreissitzung des Projektes "Ermittlung und Minderung von Mikroplastik- und Schadstoffemissionen von Kunststoffrasen-Sportplätzen (MiMiK)“ CY - Sittensen, Germany DA - 25.09.2023 KW - Mikroplastik KW - TED-GC/MS KW - Kunststoffrasen KW - Lysimeter KW - Beschleunigte Alterung PY - 2023 AN - OPUS4-58442 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Mikroplastik Detektion mit Thermoanalytischen Methoden: Analytik, Referenzmaterial, Ringversuche N2 - Ich dem Vortrag geht es um die Vorstellung von thermoanalytischen Methoden für die Mikroplastik-Detektion. Verschiedene Kopplungsmöglichkeiten werden gezeigt und die Funktionsweise der TED-GC/MS wird erklärt. Im zweiten Teil werden Referenzmaterialien für die Mikroplastik-Analytik diskutiert. PET -Tabletten des PlasticTrace Projektes werden vorgestellt. Am Ende wird der VAMAS Ringversuch zur Mikroplastik-Detektion gezeigt. T2 - Plastik, Mikroplastik, Nanopartikel, PFAS und Verunreinigungen (Agilent Workshop) CY - Hamburg, Germany DA - 28.05.2024 KW - Mikroplastik KW - TED-GC/MS KW - Polymer 3R KW - Ringversuche KW - Referenzmaterial PY - 2024 AN - OPUS4-60155 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kittner, Maria T1 - Bewertung der Freisetzung von Mikroplastik aus Sportböden auf Kunststoffbasis N2 - Es handelt sich hierbei um die Abschluss-Präsentation des Projektes "Bewertung der Freisetzung von Mikroplastik aus Sportböden auf Kunststoffbasis", die am 28.11.24 vor dem Drittmittelgeber Zukunft Bau Forschungsförderung im Rahmen der 28. Projekttage der Bauforschung präsentiert wurde. Der 30-minütige Vortrag gliederte sich in die Kapitel Forschungsbedarf, Konzept, Ergebnisse und Take Home-Messages des Projektes. T2 - 28. Projekttage der Zukunft Bau Forschungsförderung CY - Online meeting DA - 26.11.2024 KW - Mikroplastik KW - TED-GC/MS KW - Kunststoffrasen KW - PAK KW - Schwermetalle KW - Mikroplastik Eluat Lysimeter PY - 2024 AN - OPUS4-61815 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Mikroplastik heute: Was haben wir in den letzten Jahren erreicht? N2 - In diesem Vortrag geht es um eine Übersicht über die Thematik der Mikroplastik, Was ist Mikroplastik, wie entsteht es und wo kommt es her. Es wird beschrieben wie eine repräsentative Probenahme erfolgen kann und wie welche Herausforderungen bei der Probenvorbereitung existieren. Die Detektion wird ausführlich beschrieben, sowohl mit Partikelanzahl als auch Masse. Im weiteren werden erste Referenzmaterialien und ihre Anwendung in internationalen Ringversuchen beschrieben. Der zweite Teil zeigt die Normungsaktivitäten im Bereich der Mikroplastik. T2 - Mitgliederversammlung der GdCh Lackchemie CY - Online Meeting DA - 20.09.2024 KW - Mikroplastik KW - TED-GC/MS KW - Polymer 3R KW - Reference material KW - ILC on detection methods PY - 2024 AN - OPUS4-61087 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miclea, Paul-Tiberiu T1 - Membrane filter cascade for size-selective analysis of nano-and micro particles N2 - From a metrological point of view, the analysis of micro and nanoplastics MNP requires not only representative and meaningful methods for sampling, preparation, and detection, but also defined and reproducible analytical procedures for the processes and materials used. For such a validation of the detection procedures (including the determination of process and laboratory blank values), the filters and laboratory conditions used in interaction with the final MNP measurement play a central role for detection limits regarding MNP size, MNP content and statistical measurement control, in addition to the reference materials mentioned above. On the basis of available filtration materials (e.g. metal mesh, silicon, aluminum oxide, polycarbonate) and metrological boundary conditions, key aspects for metrologically sound method development must be defined. Two key categories of analysis are developed for the characterization of MNP’s: analytical methods (e.g. µ-IR spectroscopy, µRaman) and mass spectrometry (eg. Py-GC/MS or TED-GC/MS). If in the first category the shape, size, number of particles and the size distribution present in the samples can be determined. In the second category the mass of the material can be measured and the volume of plastic present in the samples can be deduced from this. Both catagories are very sensitive in terms of the volume of material that can be analyzed; vibrational methods can detect single particles but mass-based method require enough particles to reach the limit of detection. That is why in this study we propose a filtration system, which in our opinion brings the two categories much closer to each other and allows true measurements of particle number and mass of the same sample. In this way it is possible not only to estimate the volume of plastic in the sample, but also to determine with much greater precision the number of particles and the type of plastic present. Furthermore, new methods for particle detection can be added and combined with existing methods. Our proposed system can be used for a single filter, but also for the use of several filters in cascade. In this way a separation of particles by size can be achieved. T2 - 13th Annual World Congress of Nano Science & Technology 2024 CY - Osaka, Japan DA - 22.05.2024 KW - Microplastics KW - Si filters KW - Filtration KW - Polymer 3R PY - 2024 AN - OPUS4-61097 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kittner, Maria T1 - Development of a new Lysimeter System to assess Microplastic, PAH & Heavy Metal Emissions from Artificial Turf Sports Pitches N2 - Since September 2023, the European Commission introduced a new regulation to reduce emissions of microplastics (MP) into the environment, including the sale and use of intentionally added MP. Therein, the use of synthetic rubber granules in artificial turf is explicitly mentioned and banned for future use. Additionally, abrasions of grass fibres and other turf components are also considered as MP sources. Artificial turf pitches are multi component systems: e. g. grass fibres made of polyethylene (PE), synthetic infill made of ethylene propylene diene monomer rubber (EPDM), carpet backing of polypropylene (PP) glued with polyurethane (PU), winding yarn of polyethylene terephthalate or elastic layer of Styrene-butadiene rubber (SBR) bound with PU. While the ban has great impact on recreational sports, there is so far no sufficient data to estimate the MP emissions from artificial turf sports pitches into the environment and thus their relevance as a source of MP pollution. To close this gap, three artificial turf scenarios in different ageing states (unaged, artificially aged and aged in real time) were analysed in this study: the past (old turf: fossil based, synthetic infill), present (most commonly installed in Germany: fossil based, synthetic infill) and future (turf with recycled grass fibres, no synthetic infill). To simulate outdoor weathering during the service life of approx. 15 years, accelerated ageing by UV weathering and mechanical stress was carried out. The newly developed and in-house manufactured Microplastic Eluate Lysimeter (MEL) simulates contaminant transfer into the groundwater and allows the simultaneous sampling for MP and dissolved contaminants, like polycyclic aromatic hydrocarbons (PAH) or heavy metals (HM). MP mass contents were analysed using smart microfilter crucibles (mesh size: 5 µm) and Thermal Extraction Desorption Gas Chromatography/Mass Spectrometry and PAH and HM concentrations were determined using Gas Chromatography/Mass Spectrometry or Inductively Coupled Plasma Atomic Emission Spectroscopy, respectively. T2 - MICRO2024: Plastic Pollution from Micro to Nano CY - Arrecife, Spain DA - 23.09.2024 KW - Microplastics Eluate Lysimeter KW - Microplastics KW - Heavy Metals KW - PAH KW - TED-GC/MS PY - 2024 AN - OPUS4-61160 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kittner, Maria T1 - Contaminant Emissions from Artificial Turf Sports Pitches - Simultaneous sampling for Microplastics, PAH and Heavy Metals N2 - In September 2023, the European Commission introduced a new regulation to reduce microplastic (MP) emissions into the environment, including the sale and use of intentionally added (large) MP < 5 mm (ISO/TR 21960: 2020). This explicitly applies to the use of synthetic rubber granulate infill in artificial turf installations, which are complex multi-component systems consisting of multiple synthetic polymers (Fig. 1). In addition, abrasions of synthetic grass fibres and other turf components are also considered as MP sources. Although this has a major impact on public recreational sports, there is so far no sufficient data to estimate the MP emissions from artificial turf sports pitches into the environment and thus their relevance as a source of MP pollution. To close this gap, this study compared environmental contaminant emissions of three artificial turf scenarios at different ageing states (unaged, artificially and real-time aged): the past (old turf: fossil based, synthetic infill), present (most commonly installed in Germany: fossil based, EPDM infill) and future (turf with recycled grass fibres, no synthetic infill). Accelerated ageing by UV weathering and mechanical stress was carried out to simulate the outdoor weathering during the lifespan of approx. 15 years. MP emissions and released environmentally relevant contaminants posing a risk to the groundwater were simultaneously sampled using the newly developed Microplastic Eluate Lysimeter manufactured at BAM (Fig. 2). MP contents were analysed using smart microfilter crucibles (mesh size: 5 μm) with subsequent MP detection by TED-GC/MS. Additionally, concentrations of polycyclic aromatic hydrocarbons were determined using GC/MS and heavy metals using ICP-AES. T2 - 22nd European Symposium on Polymer Spectroscopy (ESOPS) CY - Berlin, Germany DA - 08.09.2024 KW - Microplastics Eluate Lysimeter KW - Microplastics KW - TED-GC/MS KW - Heavy Metals KW - PAH PY - 2024 AN - OPUS4-61013 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cirkovic Velickovic, T. A1 - Altmann, Korinna A1 - Dailey, L T1 - CUSP Conference WG1 & WG3: MATERIALS AND METHODS N2 - This talk is a presentation about the main results of the CUSP cluster on micro- and nanoplastics human health that work from 2021 to 2025 in Horizon Europe programme according to the WG1 and 3. These groups combined the analytics and the materials with interlaboratory comparisons (ILC). The talk reflects the need of realistic test materials with defined properties for micro- and nanoplastic research. Some were developed are now available. The talk also highlights the need for harmonisation and the results of different ILCs that were performed. T2 - CUSP conference CY - Brussels, Belgium DA - 25.02.2025 KW - Microplastics KW - Reference materials KW - Interlaboratory comparison (ILC) PY - 2025 AN - OPUS4-62703 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Production of small micro- and nanoplastic reference materials supporting harmonization and standardization N2 - The MICROPLASTICdays at Ljubliana, Slowenia, were organized in cooperation with the PRIORITY cost action. The topic has been reference materials this time. The talk gives an idea of the preparation of reference materials in micro- and nanoplastic topic to support standardisation and regulation. It defines the term of micro-and nanoplastics and presents different case studies and critical attributes to the production depending on the enduser needs. T2 - MICROPLASTICdays CY - Ljubljana, Slovenia DA - 25.03.2025 KW - Microplastics KW - Nanoplastics KW - Reference materials PY - 2025 AN - OPUS4-62801 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nordholt, Niclas T1 - The disinfectant glutaraldehyde induces antibiotic tolerance underpinned by a Disrupted Cellular State and Heterogenous Regrowth Dynamics N2 - Glutaraldehyde is widely used as a disinfectant and preservative, but little is known about its effects on bacterial susceptibility to antibiotics and the selection of tolerant phenotypes. We found that short-term exposure to sub-inhibitory levels of glutaraldehyde makes E. coli resistant to high doses of bactericidal antibiotics from different classes. This tolerance is associated with delayed, heterogeneous regrowth dynamics and global transcriptome remodeling. We identified over 1200 differentially expressed genes, including those related to antibiotic efflux, metabolic processes, and the cell envelope. The cells entered a disrupted state likely due to the unspecific mode-of-action of glutaraldehyde. Despite this unregulated response, we identified several differentially expressed genes not previously associated with antibiotic tolerance or persistence that induce antibiotic tolerance when overexpressed alone. These findings highlight how the unspecific mode-of-action of disinfectants can make bacteria temporarily resistant to antibiotics. They have implications for settings where disinfectants and antibiotics are used in close proximity, such as hospitals and animal husbandry, and for the selection dynamics of tolerant pheno- and genotypes in fluctuating environments where microorganisms are exposed to these substances, such as sewage systems. A trade-off arises from overcoming the disrupted state as quickly as possible and maintaining antibiotic tolerance. T2 - Molecular Mechanisms in Evolution (GRS) Gordon Research Seminar CY - Easton, Massachusetts, USA DA - 24.06.2023 KW - Glutaraldehyde KW - Biocides KW - Tolerance KW - Bacteria KW - Disinfection KW - Heterogeneity KW - Antibiotics KW - AMR PY - 2023 AN - OPUS4-58032 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Haacke, Nasrin T1 - Runoff-Messungen zur Abschätzung der Dauerhaftigkeit von Materialien und des Eintrags von Schwermetallionen in die Umwelt N2 - Die Präsentation stellt das Runoff-Projekt in seiner Gesamtheit vor. Dabei liegt der Fokus vor allem auf die verschiedenen Untersuchungsverfahren zur Neubewertung der Dauerhaftigkeit von Dach- und Fassadenmaterialien. Dazu zählen elektrochemische Untersuchungen der Deckschichtstabilität, die Bestimmung der Korrosionsprodukte sowie des Massenverlustes und die Identifikation wichtiger Einflussfaktoren. T2 - 17. Sitzung des AK Korrosionsuntersuchung und -überprüfung CY - Dresden, Germany DA - 04.12.2023 KW - Runoff KW - Kupfer KW - Zink KW - Deschichtwiderstand KW - Dauerhaftigkeit KW - Schwermetalle PY - 2023 AN - OPUS4-59071 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nordholt, Niclas T1 - The interplay between biocides, phenotypic heterogeneity and resistance evolution N2 - An overview of the interplay between biocides, phenotypic heterogeneity and resistance evolution presented at the University Wroclaw. T2 - Invited seminar at the Department of Molecular Microbiology CY - Wroclaw, Poland DA - 08.04.2024 KW - Disinfectants KW - Biocide resistance KW - Phenotypic heterogeneity KW - Evolution PY - 2024 AN - OPUS4-61173 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nordholt, Niclas T1 - Biocides and phenotypic heterogeneity N2 - An overview of our findings regarding the interplay between phenotypic heterogeneity in bacteria and biocides. T2 - One Health and Antimicrobial Resistance CY - Berlin, Germany DA - 29.01.2024 KW - Biocides KW - Phenotypic heterogeneity KW - Biocide resistance PY - 2024 AN - OPUS4-61174 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nordholt, Niclas T1 - EVOCIDE: Preserving disinfectant efficacy by predicting evolution: exposing the principles of disinfectant survival and adaptation in bacteria N2 - Presentation of the EVOCIDE research proposal work programme.EVOCIDE seeks to gain a systems level understanding of disinfectant survival and evolution in bacteria. T2 - Joint Group Seminar Rolff-McMahon-Armitage-Steiner CY - Berlin, Germany DA - 20.12.2023 KW - Disinfectants KW - Evolution KW - Microbiology KW - Bacteria KW - Biocides PY - 2023 AN - OPUS4-59224 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Repräsentative Untersuchungsstrategien für ein integratives Systemverständnis von spezifischen Einträgen von Kunststoffen in die Umwelt (RUSEKU) N2 - Der Vortrag wurde im Rahmen der Abschlusskonferenz des Forschungsschwerpunktes "Plastik in der Umwelt" des BMBF gehalten. Er fasst die Ergebnisse des Verbundprojektes RUSEKU zusammen. Es wurde die Herstellung verschiedener Testmaterialien für die Mikroplastik (MP) Analytik beschrieben. Im weiteren geht es um verschiedene Ansätze MP kostengünstig und schnell zu detektieren, z.B. mit Nahinfrarotspektroskopie. Nanoplastik konnte mit der Transmissionselektronenmikroskopie sichtbar gemacht werden. Für die praxisnahe Beprobung von Gewässern wurde die Fraktionierte Filtration entwickelt. Integrale Beprobungen können mit dem Sedimentationskasten erfolgen. Als Beispiele für die Beprobung realer Gewässer wurde das urbane Abwassersystem Kaiserslautern, Getränkewasser und Waschmaschinenwasser gezeigt. T2 - Abschlusskonferenz des Forschungsschwerpunktes "Plastik in der Umwelt" des BMBF CY - Online meeting DA - 20.04.2021 KW - Mikroplastik KW - TED-GC/MS KW - Probennahme KW - RUSEKU PY - 2021 AN - OPUS4-52546 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Microplastics at BAM: TED-GC/MS and reference materials N2 - Thsi talk aims to present the activities of microplastic analysis at BAM according to TED-GC/MS and reference materials developement. T2 - Webinar BAM / University of Birmingham CY - Online meeting DA - 15.06.2021 KW - Microplastic KW - TED-GC/MS KW - Reference materials PY - 2021 AN - OPUS4-53738 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiesner, Yosri T1 - MIKROPLASTIK – von der Probenvorbereitung bis zur Analytik N2 - Der Vortrag beschreibt die Herausforderungen bei der Analyse von Mikroplastik inklusive Probennahme, Probenvorbereitung und Detektion. Es werden Ergebnisse aus dem BMBF-Projekt RUSEKU vorgestellt. T2 - LABO-Anwendertag CY - Online meeting DA - 23.11.2021 KW - Mikroplastik KW - TED-GC/MS KW - Mikroplastik-Analytik PY - 2021 AN - OPUS4-53829 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kittner, Maria T1 - Beschleunigung und Hemmung - Komplexe Wechselwirkungen bei der Zersetzung von thermoplastischen PLA/PS-Blends unter realitätsnahen Umweltbedingungen N2 - Mit dem stetigen weltweiten Anstieg der Nachfrage nach Polymerprodukten nimmt auch die potenzielle Menge an Kunststoffabfällen in der Umwelt zu. Problematisch ist, dass viele der wirtschaftlich relevantesten Kunststoffe sehr lange brauchen, um in der Umwelt abzubauen, sich dort akkumulieren und in kritisch betrachtetes Makro- und Mikroplastik zu zerfallen. Auf der Grundlage des Vorsorgeprinzips fordert die Europäische Kommission daher die Entwicklung neuer polymerer Materialien, die diesem Problem der Persistenz entgegenwirken und unter natürlichen Umweltbedingungen schneller abgebaut werden können. 1,2 Um dieses Problem anzusprechen, wurden mittels additiver Fertigung Polymerblends aus photooxidationsempfindlichem Polystyrol (PS) und hydrolyseempfindlicher Polymilchsäure (PLA) hergestellt. Die Hypothese war, dass sich die beiden Thermoplaste aufgrund ihrer unterschiedlichen Abbauprozesse gegenseitig in ihrem Abbau unterstützen, wenn sie unter moderaten, realitätsnahen Umweltalterungsbedingungen (45 °C) abwechselnd der Photooxidation und Hydrolyse ausgesetzt werden. In der Praxis zeigten die Ergebnisse, dass die Degradation von PLA durch die Anwesenheit von PS deutlich beschleunigt worden ist – wohingegen die Degradation von PS gehemmt wurde. In diesem Vortrag werden die detaillierten Ergebnisse der Oberflächen- (ATR-FTIR, REM) und Bulk-Analysen (DSC, TGA, FTIR-Transmission, TED-GC/MS) der Blends sowie ergänzende Mikroplastik-Ergebnisse des umgebenden Wassermediums (TED-GC/MS) erörtert. T2 - 50. Jahrestagung der Gesellschaft für Umweltsimulation (GUS) CY - Online meeting DA - 23.03.2022 KW - Polymerblend KW - PLA KW - Hydrolyse KW - PS KW - Bewitterung KW - UV-Bestrahlung KW - TED-GC/MS KW - Wasser KW - Mikroplastik PY - 2022 AN - OPUS4-54544 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna T1 - Mikroplastik – Ein Problem für die Menschheit? N2 - Mikroplastik findet sich in Ozeanen, Seen, Flüssen und Bächen. Es kann in unserem Boden, in der Luft und sogar in Organismen nachgewiesen werden. Jedes Jahr werden weltweit Millionen Tonnen freigesetzt. Doch wo und wie landet Mikroplastik in der Umwelt? Und wie können wir diese winzigen Partikel nachweisen? T2 - Berlin Science Week CY - Berlin, Germany DA - 01.11.2021 KW - Mikroplastik KW - TED-GC/MS PY - 2021 AN - OPUS4-53734 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Axel T1 - Representative sampling of roadside soil and determination of tire wear contents by TED-GC/MS N2 - The presentation describes microplastic findings from tyre wear near roads. Both the sampling and the analysis are presented. T2 - Mikroplastik Workshop der Hochschule Zittau CY - Online meeting DA - 25.11.2021 KW - Mikroplastik KW - Reifenabrieb KW - TED-GC/MS KW - Probennahme PY - 2021 AN - OPUS4-53831 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Altmann, Korinna A1 - Braun, U. T1 - Monitoring von Mikroplastik N2 - Der Vortrag gibt einen Überblick was bei der Analyse von Mikroplastik zu beachten ist und beschreibt die Vor- und Nachteile der TED-GC/MS. T2 - Abschlusstreffen MikroPlaTas CY - Online meeting DA - 23.06.2021 KW - Mikroplastik KW - TED-GC/MS KW - Mikroplastik-Analytik PY - 2021 AN - OPUS4-52916 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -