TY - CONF A1 - Seeger, Stefan T1 - Prüfverfahren Blauer Engel für Bürodruckgeräte unter Berücksichtigung ultrafeiner Partikelemissionen, Abschluss des Ufoplan-Vorhabens T2 - 18. WaBoLu-Innenraumtage, UBA Berlin CY - Berlin, Germany DA - 2011-05-30 PY - 2011 AN - OPUS4-24377 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Zeitaufgelöste Partikelemissionsmessungen an Bürogeräten mit Laserdruckfunktion T2 - 25. Aerosol Technologie Seminar, Fa. Palas GmbH CY - Karlsruhe, Germany DA - 2011-09-12 PY - 2011 AN - OPUS4-24380 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Barthel, Mathias A1 - Fiedler, J. A1 - Giacomini, M. A1 - Moriske, H.-J. A1 - Seeger, Stefan A1 - Thurner, J.-U. T1 - Partikelemissionen aus Laserdruckern - Aktueller Sachstand N2 - Partikelemissionen aus Laserdruckern sind seit längerem bekannt und wurden bislang als Feinstaubmasse bei der Prüfwertvergabe für den Blauen Engel begrenzt. Seit einigen Jahren weiß man, dass neben den Feinstaubpartikeln auch ultrafeine Partikel beim Betrieb von Laserdruckern emittiert werden. Diese Emissionen lassen sich nur eingeschränkt bis gar nicht über Nachrüstfilter am Druckgerät minimieren. Das Umweltbundesamt (UBA) hat dies zum Anlass genommen, die Prüfvorgaben für den Blauen Engel im Hinblick auf die Erfassung ultrafeiner Partikel anzupassen und zu verschärfen. UBA hat hierzu einen Forschungsauftrag an die Bundesanstalt für Materialforschung und -prüfung (BAM) vergeben. Testverfahren und Prüfvorgaben sind nunmehr erarbeitet und werden im Beitrag vorgestellt. Die geänderten Prüfbedingungen sollen ab 2013 in die Prüfvorgabe eingeführt werden. Etwa drei Viertel der derzeit am Markt erhältlichen Laserdrucker werden die strengen Prüfvorgaben nicht erfüllen können. N2 - Particle emissions from laser printers are since longer time well-known. The total particulate mass (fine dust) is already limited within the Blue Angel basic criteria. For some years we know that besides fine particles (FP) also the ultrafine particle (UFP) fraction is relevant for health impact assessment. These particles are also emitted by laser printing devices. Particle filter systems, fixed outside the printing device housings, do not provide a general solution to the minimization of UFP emissions. The Federal Environment Agency of Germany (UBA) therefore decided to update the existing test procedure and its basic criteria for the Blue Angel ecolabel by considering also the number of ultra fine particles. For this project, UBA contracted the Federal Institute for Materials Research and Testing (BAM). As an outcome, the draft proposal for the extended test procedure along with particle emission limits is presented here. The changed basic criteria are to be set into force by January 2013. It is expected that approximately three-quarters of the printers currently available on the market will not meet these strict test criteria. KW - Laserdrucker KW - Blauer Engel KW - UFP KW - FP KW - Partikelemissionen PY - 2012 SN - 2190-1120 SN - 2190-1147 VL - 1 SP - 23 EP - 29 PB - BfS CY - Berlin AN - OPUS4-25922 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Konzepte zur ISO-Kalibrierung der Messung von Partikelgrößen und Partikelanzahlkonzentrationen T2 - Symposium: Ultrafeine Partikel (UFP) in der städischen Außenluft CY - Berlin, Germany DA - 2012-05-24 PY - 2012 AN - OPUS4-26067 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Bresch, Harald A1 - Dörfel, Ilona A1 - Steinborn, Gabriele A1 - Krietsch, Arne A1 - Langner, Jeanette A1 - Schmidt, Martin A1 - Österle, Werner A1 - Seeger, Stefan T1 - Physical-chemical characterization of NM105(P25) N2 - NM 105, Ti02 (P25) could not be ignited as dust layer and dispersed in air as dust/air-mixture as well. This dust is not dust explosible and the burning behaviour corresponds to Burning Class 1 (no Ignition). The results have shown that the tested sample is thus not combustible at all, because it is already oxidized completely. KW - OECD KW - WPMN KW - TiO2 KW - NM105 KW - P25 KW - Sponsorship programme PY - 2012 SP - 1 EP - 18 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-27322 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Partikelanalyse im Brandfall T2 - Workshop Chemische Brandspurenanalytik CY - Berlin, Germany DA - 2013-04-09 PY - 2013 AN - OPUS4-28535 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinsch, Stefan A1 - Böcker, Wolfgang D. G. A1 - Bücker, Michael A1 - Seeger, Stefan A1 - Unger, Brita ED - Specht, K. T1 - Development of wood-inorganic composites with enhanced properties and environmental stability T2 - 4th International Wood and Natural Fibre Composites Symposium CY - Kassel, Germany DA - 2002-04-10 PY - 2002 VL - 4 SP - 50-1-50-6 CY - Kassel AN - OPUS4-1365 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Anforderungen an Dichtungskontrollsysteme aus der Sicht des Anwenders T2 - 15. Fachtagung "Die Sichere Deponie" CY - Würzburg, Deutschland DA - 1999-02-18 KW - Dichtungskontrollsysteme KW - Oberflächenabdichtungen PY - 1999 IS - 15 SP - 1 EP - 13 PB - SKZ CY - Würzburg AN - OPUS4-752 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Quantitative characterization of nanoparticle emissions from office machines with printing function T2 - Ultrafine Particles in Urban Air - Abschlusskonferenz des EU-Projektes UFIPOLNET, Sächsisches Landesamt für Umwelt und Geologie LfUG CY - Dresden, Germany DA - 2007-10-23 PY - 2007 AN - OPUS4-17612 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Barthel, Mathias A1 - Seeger, Stefan A1 - Rothhardt, Monika A1 - Wilke, Olaf A1 - Horn, Wolfgang A1 - Juritsch, Elevtheria A1 - Hahn, Oliver A1 - Jann, Oliver T1 - Measurement of fine and ultrafine particles from office devices during printing in order to develop a test method for the Blue Angel ecolabel for office-based printing devices N2 - The research project on which this report is based focuses on the measurement of particulate emissions in the area of fine and ultrafine particles from laser printing devices. Against the backdrop of a public debate about possible hazards related to these emissions, ⁠UBA⁠ has commissioned BAM to develop a measurement method for these emissions, to expand the existing awarding criteria for the "Blue Angel" ecolabel by the aspect of particle emissions and to physically and chemically analyse particulate emissions. The resulting awarding criteria will be submitted to RAL later this year. ⁠Emission⁠ characteristics of laser printing devices, conclusions on awarding criteria and interim results of the project were discussed in three sessions of a project-related expert group. KW - Bürogeräte KW - Laserdrucker KW - Partikelemissionen PY - 2013 UR - http://www.umweltbundesamt.de/publikationen/measurement-of-fine-ultrafine-particles-from-office SN - 1862-4804 VL - 75 IS - UBA-FBNr: 001743/E / FKZ: 3708 95 301 SP - 1-142, Suppl.RAL-UZ-122 1-39 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-28987 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Barthel, Mathias A1 - Seeger, Stefan A1 - Rothhardt, Monika A1 - Wilke, Olaf A1 - Horn, Wolfgang A1 - Juritsch, Elevtheria A1 - Hahn, Oliver A1 - Jann, Oliver T1 - Erfassung der Zahl feiner und ultrafeiner Partikel aus Bürogeräten während der Druckphase zur Entwicklung eines Prüfverfahrens für das Umweltzeichen Blauer Engel für Bürogeräte mit Druckfunktion KW - Bürogeräte KW - Laserdrucker KW - Partikelemissionen PY - 2013 UR - http://www.umweltbundesamt.de/publikationen/erfassung-zahl-feiner-ultrafeiner-partikel-aus SN - 1862-4804 VL - 74 IS - FKZ/Projektnr. 3708 95 301 UBA-FBNr. 001743 SP - 1-146, Anh. 1-39 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-28988 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Barthel, Mathias A1 - Seeger, Stefan A1 - Rothhardt, Monika A1 - Wilke, Olaf A1 - Horn, Wolfgang A1 - Juritsch, Elevtheria A1 - Hahn, Oliver A1 - Jann, Oliver T1 - Erfassung der Zahl feiner und ultrafeiner Partikel aus Bürogeräten während der Druckphase zur Entwicklung eines Prüfverfahrens für das Umweltzeichen Blauer Engel für Bürogeräte mit Druckfunktion (UFOPLAN 370895301) N2 - Das diesem Bericht zugrundeliegende Forschungsvorhaben konzentriert sich auf die Erfassung partikulärer Emissionen im Fein- und Ultrafeinstaubbereich aus Bürogeräten mit Laserdruckfunktion. Vor dem Hintergrund einer öffentlichen Diskussion über mögliche, mit diesen Emissionen verbundene Gefahren wurde die BAM vom ⁠UBA⁠ damit beauftragt, eine Messmethode für diese Emissionen zu entwickeln, die bestehende Vergabegrundlage für das Umweltzeichen „Blauer Engel“ um den Aspekt Partikelemission zu erweitern und die partikulären Emissionen physikalisch und chemisch zu analysieren. Eine daraus resultierende Vergabegrundlage wird dem RAL zur Vorbereitung einer Expertenanhörung mit den interessierten Kreisen in diesem Jahr vorgelegt werden. KW - Bürogeräte mit Laserdruckfunktion KW - Feine und ultrafeine Partikel KW - Chemische Emissionen KW - Blauer Engel PY - 2013 UR - http://www.umweltbundesamt.de/publikationen/erfassung-zahl-feiner-ultrafeiner-partikel-aus SN - 1862-4804 SN - 0722-186X IS - 74 SP - 1 EP - 189 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-27523 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Qualitative characterization of nanoparticle emissions from office machines with printing functions T2 - Ultrafine Particles in Urban Air - Abschlußkonferenz des EU-Projektes UFIPOLNET, Sächsisches Landesamt für Umwelt und Geologie LfUG CY - Dresden, Germany DA - 2007-10-23 PY - 2007 AN - OPUS4-16161 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Quantitative and Qualitative Comparison of Particulate Emissions from Office Machines (ABSTRACT) T2 - Healthy Buildings 2009 Conference CY - Syracuse, NY, USA DA - 2009-09-13 PY - 2009 AN - OPUS4-18670 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Barthel, Mathias A1 - Pedan, Vasilisa A1 - Hahn, Oliver A1 - Rothhardt, Monika A1 - Bresch, Harald A1 - Jann, Oliver A1 - Seeger, Stefan T1 - XRF-Analysis of fine and ultrafine particles emitted from laser printing devices N2 - In this work, the elemental composition of fine and ultrafine particles emitted by ten different laser printing devices (LPD) is examined. The particle number concentration time series was measured as well as the particle size distributions. In parallel, emitted particles were size-selectively sampled with a cascade impactor and subsequently analyzed by the means of XRF. In order to identify potential sources for the aerosol's elemental composition, materials involved in the printing process such as toner, paper, and structural components of the printer were also analyzed. While the majority of particle emissions from laser printers are known to consist of recondensated semi volatile organic compounds, elemental analysis identifies Si, S, Cl, Ca, Ti, Cr, and Fe as well as traces of Ni and Zn in different size fractions of the aerosols. These elements can mainly be assigned to contributions from toner and paper. The detection of elements that are likely to be present in inorganic compounds is in good agreement with the measurement of nonvolatile particles. Quantitative measurements of solid particles at 400 °C resulted in residues of 1.6 × 109 and 1.5 × 1010 particles per print job, representing fractions of 0.2% and 1.9% of the total number of emitted particles at room temperature. In combination with the XRF results it is concluded that solid inorganic particles contribute to LPD emissions in measurable quantities. Furthermore, for the first time Br was detected in significant concentrations in the aerosol emitted from two LPD. The analysis of several possible sources identified the plastic housings of the fuser units as main sources due to substantial Br concentrations related to brominated flame retardants. KW - Particulate emissions KW - UFP KW - FP KW - Laser printers KW - XRF PY - 2011 DO - https://doi.org/10.1021/es201590q SN - 0013-936X SN - 1520-5851 VL - 45 IS - 18 SP - 7819 EP - 7825 PB - ACS Publ. CY - Washington, DC AN - OPUS4-24393 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wienold, Julia A1 - Traub, Heike A1 - Bresch, Harald A1 - Seeger, Stefan A1 - Recknagel, Sebastian A1 - Kipphardt, Heinrich T1 - Effort on calibration of infrared spark ablation of copper with synthetic copper standards N2 - Two types of copper samples, compact certified copper reference materials and calibration samples prepared from liquid doped, pressed copper powders, were studied in terms of accuracy of obtained calibration functions originating from infrared spark ablation. Additionally, corresponding particle size distributions of the aerosols from infrared spark ablation were recorded. It is shown that the differences in quantification results, originating from the two sets of calibration functions, could not mainly be ascribed to different particle size distributions of the two copper sample types. Possible other causes, as different ablation rates, parts of melting and differences of the chemical constitutions of the two sample types were explored. KW - Calibration KW - Spark ablation KW - Synthetic standard KW - Particle size distribution KW - Fractionation KW - Laser ablation KW - ICP-MS PY - 2011 DO - https://doi.org/10.1016/j.sab.2011.04.005 SN - 0584-8547 SN - 0038-6987 VL - 66 IS - 6 SP - 432 EP - 438 PB - Elsevier B.V. CY - Amsterdam AN - OPUS4-24065 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Seeger, Stefan A1 - Müller, Werner T1 - Langzeitscherfestigkeit strukturierter Dichtungsbahnen N2 - In einem von der Firma GSE Lining Technology GmbH geförderten F+E-Vorhaben wurde die Langzeitscherfestigkeit und die Oxidationsstabilität von deren strukturierten PE-HD- Dichtungsbahnen untersucht. Bei diesen strukturierten Dichtungsbahnen wird das Strukturmaterial in einem eigenen Arbeitsgang aufgebracht. Das PE-HD-Material der Grundbahn war in allen Fällen Vestolen A 3512 R. Für das Strukturmaterial wurden die PE- LLD-Werkstoffe Ladene 118 N mit zwei Rußbatches (Proben 229/1 und 229/2) und Dowlex 2045 E mit zwei Rußbatches (Proben 229/3 und 229/4) verwendet. Die Langzeitscherfestigkeit wurde in Zeitstand-Scherversuchen in Wasser bei 80 °C getestet und dabei auch die Veränderung der OIT Werte von Grundbahn und Strukturmaterial gemessen. Die Oxidationsstabilität des Strukturmaterials im Vergleich zur Grundbahn wurde in Autoklavenversuchen an Proben im Wasserbad unter einem Sauerstoffdruck von 20 bar und 80°C geprüft. Nach der Immersion wurde die Veränderung der Reibungsparameter in Scherkastenversuchen ermittelt. T3 - BAM Forschungsberichtreihe - 256 PY - 2001 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-1955 SN - 978-3-89701-736-9 SN - 0938-5533 VL - 256 SP - 1 EP - 34 PB - Wirtschaftsverlag NW CY - Bremerhaven AN - OPUS4-195 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Böhm, Hans A1 - Söhring, Guido A1 - Müller, Werner ED - Cancelli, A. T1 - Long term testing of geomembranes and geotextiles under shear stress T2 - 2nd European Geosynthetics Conference ; 2nd EuroGeo 2000 CY - Bologna, Italy DA - 2000-10-15 KW - Geomembranes KW - Geotextiles PY - 2000 SN - 88-555-2560-3 VL - 2 SP - 607 EP - 612 PB - Pàtron CY - Bologna AN - OPUS4-854 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tang, Chi-Long A1 - Seeger, Stefan T1 - Measurement of sub-4 nm particle emission from FFF-3D printing with the TSI Nano Enhancer and the Airmodus Particle Size Magnifier N2 - The emission of ultrafine particles from small desktop Fused Filament Fabrication (FFF) 3D printers has been frequently investigated in the past years. However, the vast majority of FFF emission and exposure studies have not considered the possible occurrence of particles below the typical detection limit of Condensation Particle Counters and could have systematically underestimated the total particle emission as well as the related exposure risks. Therefore, we comparatively measured particle number concentrations and size distributions of sub-4 nm particles with two commercially available diethylene glycol-based instruments – the TSI 3757 Nano Enhancer and the Airmodus A10 Particle Size Magnifier. Both instruments were evaluated for their suitability of measuring FFF-3D printing emissions in the sub-4 nm size range while operated as a particle counter or as a particle size spectrometer. For particle counting, both instruments match best when the Airmodus system was adjusted to a cut-off of 1.5 nm. For size spectroscopy, both instruments show limitations due to either the fast dynamics or rather low levels of particle emissions from FFF-3D printing in this range. The effects are discussed in detail in this article. The findings could be used to implement sub-4 nm particle measurement in future emission or exposure studies, but also for the development of standard test protocols for FFF-3D printing emissions. KW - Air pollution KW - Ultrafine particles KW - Sub-4nm particles KW - FFF-3D printing KW - Emission testing PY - 2024 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-595952 DO - https://doi.org/10.1080/02786826.2024.2320430 SN - 0278-6826 VL - 58 IS - 6 SP - 644 EP - 656 PB - Taylor & Francis CY - London AN - OPUS4-59595 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tang, Chi-Long A1 - Seeger, Stefan A1 - Röllig, Mathias T1 - Improving the comparability of FFF-3D printing emission data by adjustment of the set extruder temperature N2 - Fused filament fabrication (FFF) is a material extrusion-based technique often used in desktop 3D printers. Polymeric filaments are melted and are extruded through a heated nozzle to form a 3D object in layers. The extruder temperature is therefore a key parameter for a successful print job but also one of the main emission driving factors as harmful pollutants (e.g., ultrafine particles) are formed by thermal polymer degradation. The awareness of potential health risks has increased the number of emission studies in the past years. However, studies usually refer their calculated emission data to the printer set extruder temperature for comparison purposes. In this study, we used a thermocouple and an infrared camera to measure the actual extruder temperature and found significant temperature deviations to the displayed set temperature among printer models. Our result shows that printing the same filament feedstocks with three different printer models and with identical printer set temperature resulted in a variation in particle emission of around two orders of magnitude. A temperature adjustment has reduced the variation to approx. one order of magnitude. Thus, it is necessary to refer the measured emission data to the actual extruder temperature as it poses a more accurate comparison parameter for evaluation of the indoor air quality in user scenarios or for health risk assessments. KW - Ultrafine particles KW - Infrared thermography KW - Thermocouple KW - Indoor air quality KW - FFF-3D printer PY - 2023 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-572842 DO - https://doi.org/10.1016/j.aeaoa.2023.100217 VL - 18 SP - 100217 PB - Elsevier Ltd. CY - Amsterdam, Niederlande AN - OPUS4-57284 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dutschke, Andreas A1 - Lohrer, Christian A1 - Kurth, Lutz A1 - Seeger, Stefan A1 - Barthel, Mathias A1 - Panne, Ulrich T1 - Aerosol emissions from outdoor firework displays N2 - The results of investigations on the emission of particulate matter from three outdoor firework displays are presented. During these events, possibly harmful and toxic aerosol emissions were measured. Aerosols in the size range from 30 to 450 nm were detected. The maxima in the observed particle size distribution were between 80 and 175 nm, and the highest value determined was ~1.3 · 106 particles per cm³, while the highest mass concentration was approximately 1.8 mg m–3. The time-averaged particle mass concentration did, however, not exceed 0.7 mg m–3 (over 15 min). KW - Firework display KW - Particle size range KW - Particulate matter KW - Threshold values PY - 2011 DO - https://doi.org/10.1002/ceat.201100080 SN - 0930-7516 SN - 1521-4125 VL - 34 IS - 12 SP - 2044 EP - 2050 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-24929 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Dutschke, Andreas A1 - Lohrer, Christian A1 - Seeger, Stefan A1 - Kurth, Lutz A1 - Schmidt, Martin A1 - Kaiser, Michael A1 - Stattaus, Kim A1 - Panne, Ulrich T1 - Determination of reaction products during a large firework display in Germany T2 - 11th International symposium on fireworks CY - Puerto Vallarta, México DA - 2009-04-20 KW - Firework display KW - Reaction products KW - Particles KW - Sound pressure PY - 2009 SN - 978-0-9734123-8-3 SP - 50 EP - 63 AN - OPUS4-19383 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dutschke, Andreas A1 - Seeger, Stefan A1 - Kurth, Lutz A1 - Panne, Ulrich A1 - Lohrer, Christian T1 - Emissions of reaction products and sound from outdoor and indoor firework displays N2 - This work presents results of investigations towards the emission of chemical reaction products and sound pressure during an outdoor and an indoor firework display. Potentially harmful and toxic gases, and aerosols, were measured as well as sound pressures. Aerosols were measured with a Differential Mobility Analyzer (DMA) as well as a Laser Particle Counter. The focus was on particles with diameters between 11 nm and 20 µm. A transportable Fourier Transform Infrared (FTIR) spectroscopy detector registered the concentrations of emitted reaction gases, simultaneously. During the outdoor firework display, peak particle concentrations of >550000 particles cm-3, equivalent to a mass concentration of approximately 3.95 mg m-3, were detected, revealing a concentration maximum at approximately 175 nm particle diameter. The time-averaged particle mass concentration did not exceed 1.58 mg m-3 over 15 minutes. Due to the large distances (110 m) to the firing points, no significant harmful or toxic gas concentrations were measured during the entire firework display. In contrast, concentrations of sulphur dioxide (SO2) rose after an indoor firework display in a large event hall. On two days, more than 23000 particles cm-3 (which equates to a mass concentration of approximately 0.41 mg m-3) were detected when the hall ventilation was turned off, and more than 11000 particles cm-3 (which equates to a mass concentration of approximately 1.18 mg m-3) when the hall ventilation was activated. Concentration maxima appeared at approximately 300 nm particle diameter. The time-averaged particle concentrations in this case did not exceed 0.56 mg m-3 (over 15 minutes). KW - Pyrotechnic articles KW - Aerosols KW - Combustion gases PY - 2009 SN - 1082-3999 IS - 28 SP - 78 EP - 93 CY - Whitewater, Colo. AN - OPUS4-20796 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Seeger, Stefan A1 - Wilke, Olaf A1 - Bücker, Michael A1 - Jann, Oliver T1 - Time- and Size-Resolved Characterization of Particle Emissions from Office Machines with Printing Function T2 - Healthy Buildings 2006 CY - Lisboa, Portugal DA - 2006-06-04 KW - Hard copy devices KW - Laserprinters KW - Toner KW - Particle emissions KW - Particles KW - Aerosols PY - 2006 SN - 978-989-95067-1-8 VL - 2 SP - 447 EP - 450 CY - Lissabon AN - OPUS4-14522 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Wilke, Olaf A1 - Jann, Oliver A1 - Brödner, Doris A1 - Schneider, Uwe A1 - Krocker, Christian A1 - Kalus, Sabine A1 - Seeger, Stefan A1 - Bücker, Michael T1 - Prüfung von Emissionen aus Bürogeräten während der Druckphase zur Weiterentwicklung des Umweltzeichens Blauer Engel für Laserdrucker und Multifunktionsgeräte unter besonderer Berücksichtigung der Sicherung guter Innenraumluftqualität KW - Emissionen KW - Emissionsmesskammern KW - VOC KW - TVOC KW - Ozon KW - Staub KW - RAL-UZ 122 KW - Blauer Engel KW - Bürogerät KW - Laserdrucker KW - Partikel PY - 2008 UR - http://www.umweltbundesamt.de/publikationen/pruefung-von-emissionen-aus-buerogeraeten-waehrend SN - 1862-4804 VL - 35 IS - 8 SP - 1 EP - 164 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-18265 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Quantitive and Qualitative Comparison of Perticulate Emissions from Office Machines (Abstract für Vortrag) T2 - 9th Healthy Buildings 2009 Conference and Exhibition CY - Syracuse, NY, USA DA - 2009-09-13 PY - 2009 AN - OPUS4-18939 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Barthel, Mathias A1 - Seeger, Stefan A1 - Rothhardt, Monika A1 - Wilke, Olaf A1 - Horn, Wolfgang A1 - Juritsch, Elevtheria A1 - Hahn, Oliver A1 - Jann, Oliver T1 - Erfassung der Zahl feiner und ultrafeiner Partikel aus Bürogeräten während der Druckphase zur Entwicklung eines Prüfverfahrens für das Umweltzeichen Blauer Engel für Bürogeräte mit Druckfunktion - Zusammenfassung N2 - Vor dem Hintergrund der anhaltenden öffentlichen Diskussion um mögliche gesundheitliche Risiken von Ultrafein- und Feinstaubemissionen aus Bürogeräten mit Laserdruckfunktion (LPD, Laser Printing Device) wurde vom Umweltbundesamt ein Forschungsvorhaben zur Entwicklung einer Prüfprozedur für die Quantifizierung der emittierten Partikel durch Zählung unter Standardbedingungen in Emissionsmesskammern, sowie zur physikalischen und chemischen Charakterisierung dieser Aerosole initiiert. Als Ergebnis konnte die Partikelzählung in den Entwurf des Prüfverfahrens für die Bestimmung von Emissionen (RAL-UZ-122, Anhang S-M) des Umweltzeichens "Blauer Engel" für Bürogeräte sowie in den Prüfstandards ECMA-328 und den Entwurf der ISO/IEC 28360 integriert werden. Die Methode wurde in einem internationalen Ringversuch erfolgreich getestet. Auf dieser Basis können Vergabekriterien und -werte für die Emission von Fein- und Ultrafeinpartikeln im Rahmen der Vergabe des Umweltzeichens Blauer Engel vereinbart und Produktprüfungen vorgenommen werden. KW - Blauer Engel KW - Bürogeräte mit Druckfunktion KW - Partikelemission KW - RAL-UZ 122 PY - 2011 VL - Förderkennzeichen UFOPLAN 3708 95 301 SP - 1 EP - 8 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-59863 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan A1 - Müller, Werner T1 - Requirements and Testing of Protective Layer Systems for Geomembranes N2 - Geomembranes used in basal liner systems of landfills must not be damaged by the coarse gravel of the standard drainage layer. Therefore, the geomembrane must be protected against mechanical damage and strain by means of a suitable protective layer. The main requirements for this protective layer as well as the long-term durability of the mineral and geotextile components are compiled in the guideline recently released by German authorities. An overview is given on the existing types of protective layer systems with the state-of-the-art testing, the requirements and selected results of related research programs. PY - 1996 SN - 0266-1144 VL - 14 IS - 7-8 SP - 365 EP - 376 PB - Elsevier CY - Amsterdam AN - OPUS4-7583 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Müller, Werner T1 - Requirements and testing of protective layer systems for geomembranes T2 - 9th GRI Conference, Geosynthetics in Infrastructure - Enhancement and Remediation CY - Philadelphia, PA, USA DA - 1995-12-12 PY - 1995 SP - 175 EP - 184 CY - Philadelphia AN - OPUS4-7578 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Thies, Martina A1 - Gerloff, Constantin A1 - Müller, Werner A1 - Seeger, Stefan ED - Koerner, R. ED - Gartung, E. ED - Zanzinger, H. T1 - Long-term shear testing of geosynthetic clay liners T2 - International Symposium [on Clay Geosynthetic Barriers] IS CY - Nuremberg, Germany DA - 2002-04-16 PY - 2002 SN - 90-5809-380-8 SP - 97 EP - 104 PB - Balkema CY - Lisse AN - OPUS4-1362 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Seeger, Stefan A1 - Müller, Werner A1 - Mohr, Kerstin ED - Delmas, P. T1 - Long term tensile testing of polyolefin fibers in geotextiles T2 - 7th International Conference on Geosynthetics (ICG) CY - Nice, France DA - 2002-09-22 PY - 2002 SN - 90-5809-529-0 VL - 4 SP - 1459 EP - 1462 PB - Balkema CY - Lisse AN - OPUS4-1532 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Werner A1 - Seeger, Stefan T1 - Requirements for Leak Monitoring Systems for HDPE Geomembrane Landfill Liners KW - Electric leak monitoring system KW - Landfill lining KW - HDPE geomembrane KW - Leaks and holes PY - 2002 DO - https://doi.org/10.2462/09670513.610 SN - 0967-0513 VL - 10 IS - 2 SP - 91 EP - 99 PB - EPP Publ. CY - Richmond AN - OPUS4-1473 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Werner A1 - Seeger, Stefan A1 - Thies, Martina ED - Knipschild, F. W. T1 - Langzeit-Scherfestigkeit von Geokunststoffen aus mehreren Komponenten T2 - 19. Fachtagung "Die Sichere Deponie" CY - Würzburg, Deutschland DA - 2003-02-13 PY - 2003 IS - 19 SP - L1 EP - L14 PB - SKZ CY - Würzburg AN - OPUS4-2806 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Müller, Werner A1 - Seeger, Stefan A1 - Thies, Martina T1 - Langzeit-Scherfestigkeit von Geokunststoffen aus mehreren Komponenten T2 - 11. Braunschweiger Deponie- und Dichtwandseminar ; 11. Braunschweiger Deponieseminar CY - Braunschweig, Deutschland DA - 2004-03-11 KW - Scherfestigkeit KW - Beständigkeit KW - Geokunststoffe KW - Prüftechnik PY - 2004 UR - http://www.deponie-stief.de/pdf/fachlit_pdf/2004tubs_mueller_scherfestigkeit.pdf SN - 3-927610-65-8 IS - 74 SP - 213 EP - 231 PB - Inst. für Grundbau und Bodenmechanik, TU Braunschweig CY - Braunschweig AN - OPUS4-3361 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan T1 - Untersuchung der Wirksamkeit von Filtern zum Schutz vor Partikelemissionen aus Laserdrucksystemen N2 - Laserdrucksysteme (Laserdrucker, -kopierer, Multifunktionsgeräte) emittieren in sehr unterschiedlichen Mengen Partikel im Größenbereich zwischen 5 und 300 nm, die im Druckbetrieb überwiegend durch Kondensation aus der Gasphase entstehen. Eine präventive Minderung dieser Emissionen ist sinnvoll. Die Filtration der in Laserdruckern entstehenden Aerosole bietet eine Option für eine wirksame Emissionsminderung. Die untersuchten Filter mit verschiedenen Filterkonzepten zeigten in ihrer Wirkung deutliche Unterschiede. Die Ergebnisse unterstreichen die Notwendigkeit der gerätespezifischen Optimierung von Filtern für die Anwendung in Laserdrucksystemen. N2 - Laser printing devices are sources of particle emission in different quantities in the size range between 5 and 300 nm. The particles are predominantly generated by re-condensation from the gas phase. Emission mitigation as a precautionary measure should be considered and exhaust air filtration is one technical option. Two particle filters with different filter concepts were compared and revealed different levels of performance. The result underpins the need for individual filter solutions for laser printing devices. PY - 2012 SN - 0949-8036 SN - 0039-0771 SN - 1436-4891 VL - 72 IS - 5 SP - 198 EP - 202 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-27520 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Barthel, Mathias T1 - Particle emission from laser printing devices - Analysis and problem treatment within the German Blue Angel ecolabel for office machines N2 - There is a continuous public debate on possible adverse health effects of particle emissions from laser printing devices (LPD). LPD do not emit toner particles, which have diameters > 1 μm, but particles in the size range below 300 nm. The German Federal Environment Agency (UBA) initiated the further development of an existing emission test scheme for awarding the Blue Angel ecolabel to LPD. The proposed new test scheme includes the quantification of emitted particles by number and the quantitative comparison of LPD emissions. Size resolved aerosol sampling and chemical analysis by combination of XRF and TDGC/ MS identified organic and inorganic substances which could be attributed to sources such as paper, LPD plastic parts and toner components. The results show that particle emissions from LPD do not have a monocausal explanation. T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 08.07.012 KW - Ultrafine particle sources KW - Ultrafine particle emission KW - Health effects KW - Product safety KW - Standards PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 6 (4F.1) AN - OPUS4-27524 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hilgenberg, Kai A1 - Daum, Werner A1 - Maierhofer, Christiane A1 - Altenburg, Simon A1 - Bruno, Giovanni A1 - Heckel, Thomas A1 - Skrotzki, Birgit A1 - Zerbst, Uwe A1 - Kranzmann, Axel A1 - Bettge, Dirk A1 - Sommer, Konstantin A1 - Seeger, Stefan A1 - Nitsche, Michael A1 - Günster, Jens A1 - Evans, Alexander T1 - Additive manufacturing at the BAM: We focus on Safety N2 - In Germany, the Federal Institute for Materials Research and Testing (BAM) is addressing challenges in the implementation of additive manufacturing on the industrial landscape for safety-critical applications. KW - Process development KW - Additive Manufacturing KW - In-situ Process Monitoring KW - Non-destructive Materials KW - Characterisation KW - Safety KW - Fatigue KW - Environment KW - Standardisation PY - 2019 UR - https://static.asminternational.org/amp/201910/22/ SN - 0882-7958 VL - 177 IS - 7 SP - 22 EP - 26 PB - ASM International CY - Materials Park, OH, USA AN - OPUS4-49780 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Matthias A1 - Beck, Oliver A1 - Wilke, Olaf A1 - Pyza, Lars A1 - Seeger, Stefan T1 - Test procedure for the evaluation of adsorptive building materials N2 - Construction materials working on the basis of physisorption or chemisorptions are considered as an additional means to improve indoor air quality. Some manufacturers promise a complete demineralisation of VOCs into C02 and water being not possible for most of typical indoor air pollutants. On the contrary, sometimes new substances are generated due to surface reactions, e.g. formaldehyde (Salthammer and Fuhrmann, 2007). For evaluating such products a testing system was built up at BAM enabling testing under defined, reproducible and realistic conditions. Tue VOC test gas is provided by a gas mixing system (GMS) developed at our institute (Richter, 2010). VOC gas mixtures with retraceable concentrations between 1 µg m·3 up to 1.5 mg m·3 can be produced. A gypsum board promoted as an 'air cleaner' was put in a 1 m3 emission test chamber connected with the GMS. The board was exposed to a gas mixture of four VOCs - ethyl acetate, hexanal, (+)-a-pinene and R-(+)-limonene - with gas concentrations between 600 µg m·3 and 1,440 µg m·3 for a period of 14 days. T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 08.07.2012 KW - Air cleaning KW - Sorptive construction materials KW - Test procedure KW - Volatile organic compound KW - Test gas generation KW - Healthy homes and buildings KW - Material and construction KW - Product safety KW - Risk assessment PY - 2012 SN - 978-1-921897-40-5 SP - 43 EP - 44 (Session 4B) AN - OPUS4-27558 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wiedensohler, A. A1 - Wiesner, A. A1 - Weinhold, K. A1 - Birmili, W. A1 - Herrmann, M. A1 - Merkel, M. A1 - Müller, T. A1 - Pfeifer, S. A1 - Schmidt, A. A1 - Tuch, T. A1 - Velarde, F. A1 - Quincey, P. A1 - Seeger, Stefan A1 - Nowak, A. T1 - Mobility particle size spectrometers: Calibration procedures and measurement uncertainties N2 - Mobility particle size spectrometers (MPSS) belong to the essential instruments in aerosol science that determine the particle number size distribution (PNSD)in the submicrometer size range. Following calibration procedures and target uncertainties against standards and reference instruments are suggested for a complete MPSS quality assurance program: a) calibration of the CPC counting efficiency curve (within 5% for the plateau counting efficiency; within 1 nm for the 50% detection efficiency diameter), b) sizing calibration of the MPSS, using a certified polystyrene latex (PSL) particle size standard at 203 nm (within 3%), c) intercomparison of the PNSD of the MPSS (within 10% and 20% of the dN/dlogDP concentration for the particle size range 20 – 200 nm and 200 to 800 nm, respectively), and d) intercomparison of the integral PNC of the MPSS (within 10%). Furthermore, following measurement uncertainties have been investigated: a) PSL particle size standards in the range from 100-500nm match within 1% after sizing calibration at 203 nm. b) Bipolar diffusion chargers based on the radioactive nuclides Kr85, Am241 and Ni63 and a new ionizer based on corona discharge follow the recommended bipolar charge distribution, while soft X-ray-based charges may alter faster than expected. c) The use of a positive high voltage supply show a 10% better performance than a negative one. d) The intercomparison of the integral PNC of an MPSS against the total number concentration is still within the target uncertainty at an ambient pressure of approximately 500 hPa. KW - Measurement uncertainties KW - Mobility particle size spectrometer (MPPS) KW - Condensation particle counter (CPC) KW - Calibration PY - 2017 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-425060 DO - https://doi.org/10.1080/02786826.2017.1387229 SN - 1521-7388 VL - 52 IS - 2 SP - 146 EP - 164 PB - Tailor & Francis CY - USA AN - OPUS4-42506 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mohr, Gunther A1 - Seeger, Stefan A1 - Hilgenberg, Kai T1 - Measurement of particle emissions in Laser Powder Bed Fusion (L-PBF) processes and its potential for in-situ process monitoring N2 - Laser Powder Bed Fusion (L-PBF) is a promising additive manufacturing (AM) technology for metal part production especially for complex and lightweight structures or functional designs. In L PBF processes several by-products including welding plume and its condensates, spatter and ejected powder are generated during laser exposure. Investigations of micro- and nano-sized by-products have received little attention in literature. This study focuses on the analysis of particle emissions in L PBF of 316L stainless steel using a scattered light aerosol spectrometer and a fast mobility particle sizer spectrometer during the process which allows for in-situ analysis of particle sizes in the range of 6 nm to 100 µm. A distinct correlation of emission signals to part position can be revealed. In addition, a significant influence of laser scanning vector directions on emission signals is presented. Furthermore, differing powder layer thicknesses can be recognised by deviations in emission signals. T2 - Euro PM 2019 CY - Maastricht, The Netherlands DA - 13.10.2019 KW - Plume KW - Laser Powder Bed Fusion (L-PBF) KW - Additive Manufacturing (AM) KW - Spatter KW - Fume KW - Particle gas emission KW - Aerosol measurements PY - 2019 SP - 1 EP - 7 AN - OPUS4-49388 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - VOC, Fine and Ultrafine Particles Emissions from Additive Manufacturing and 3D-Printers N2 - The presentation gives an overview on Additive Manufacturing techniques and related potential risks from emission of hazardous gases and aerosols, based on emission characterizations in BAM. Voluntary mitigation strategies are presented T2 - BAM - JBMIA (Japan Business Machine and Information System Industries Association) Meeting, JBMIA Emissions Working Group Meeting CY - Tokyo, Japan DA - 04.05.2019 KW - 3D Printing KW - Additive Manufacturing KW - Particulate emissions KW - Emissions of hazardous gases KW - Filament comparison PY - 2019 AN - OPUS4-47812 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - UBA Projects on Particulate Emissions from Laser Printers N2 - The presentation gives an overview on past and ongoing projects in BAM on laser printer particulate emissions, funded by the German Environment Agency (UBA) in order to further develop award criteria for the Blue Angel ecolabel for office machines T2 - BAM - JBMIA (Japan Business Machine and Information System Industries Association) Meeting, JBMIA Emissions Working Group Meeting CY - Tokyo, Japan DA - 04.05.2019 KW - Laser Printer KW - Particulate emission KW - Blue Angel ecolabel KW - Office machines PY - 2019 AN - OPUS4-47811 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Regulatory Trends in the EU for Chemicals and Nanomaterials N2 - The presentation gives an overview on existing and upcoming REACH regulations in the EU concerning nanomaterials. T2 - BAM - JBMIA (Japan Business Machine and Information System Industries Association) Meeting, JBMIA Emissions Working Group Meeting CY - Tokyo, Japan DA - 04.05.2019 KW - Nanomaterials KW - REACH KW - EU regulations PY - 2019 AN - OPUS4-47814 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Overview on the EMPIR Project "AEROMET" N2 - Overview on the ongoing EU EMPIR Project "AEROMET" Aerosol Metrology for Atmospheric Science and Air Quality, Overview on preliminary resuilts in Workpackages 3 "Calibration of MPSS and CPCs" and 4 "Quantifying airborne particle compositions in the field" T2 - Meeting des ISO TC24/SC4, Joint session of Working Groups 9 "Single particle light interaction methods" and 12 "Electrical mobility and number concentration analysis for aerosol particles" CY - Graz, Austria DA - 11.04.2019 KW - Ambient air pollution KW - EU EMPIR KW - Chemical analysis KW - Total reflection X-ray spectroscopy KW - Airborne Particles PY - 2019 AN - OPUS4-47820 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Instruments for Fine and Ultrafine Particle Emission Characterization N2 - An overview on instruments and methods for the measurement and chemical characterization of particulate emissions from local sources is presented T2 - BAM - JBMIA (Japan Business Machine and Information System Industries Association) Meeting, JBMIA Emissions Working Group Meeting CY - Tokyo, Japan DA - 04.05.2019 KW - Aerosol spectroscopy KW - Particulate emission KW - Chemical analysis KW - Total reflection X-ray spectroscopy KW - Calibration PY - 2019 AN - OPUS4-47816 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - AEROMET - Observation of quickly changing element mass concentrations in an ambient aerosol using portable TXRF N2 - Measurements of aerosol particles are vital for enforcing EU air quality regulations to protect human health, and for research on climate change effects. Although metrics such as PM10 and PM2.5 are currently in use, the level of uncertainty of aerosol metrics is too high and the traceability is insufficient. The project AEROMET, which has been started in June 2017 aims at implementing improvements in a) the uncertainty of particle mass, size and number concentration measurements and b) in the characterization of regulated components in airborne particles. Both are demanded by existing networks within the EU as well as by global atmospheric research. On-site measurement campaigns One of the objects is the application of mobile x-ray spectroscopy techniques combined with aerosol sampling techniques for quantifying particle compositions in the field for real time analysis. During two in-field measurement campaigns in Budapest, Hungary in May 2018 and Cassino, Italy in September 2018 the size dependent mass concentrations of specific elements in ambient aerosols were monitored under dynamic conditions. Typically, airborne particles are sampled on filter substrates. During this project new sampling methods with specially designed substrate holders for an in-situ TXRF analysis were developed and applied for the first time. This approach allows a direct time and size resolved analysis without laborious digestion steps and a reduced risk of contamination. Aerosol particles were sampled in a 13-stage DLPI impactor - size range from 0,03 µm to 10 µm - which was equipped with special adapters for acrylic discs of 30 mm diameter, serving as substrates. TXRF analysis was performed on site with the transportable spectrometer S2 PICOFOX (Bruker Nano GmbH) equipped with a Mo X-ray tube and a 30 mm² Silicon Drift Detector (SDD). Excitation conditions were 50 kV, 600 µA, measurement time 1000 s. Quantification was based on internal standardization using 50 ng of Y in solution, which was pipetted into the centre of the discs prior to sampling. At moderate air pollution levels, i.e. PM10 ~ 20 µg/m³, sampling times of less than 2 hours were enough for the detection of elements in different particle size bins. The in-situ approach and the high sensitivity of TXRF enables the observation of rather quick changes in the quantity and distribution of elements in an ambient aerosol on the day of sampling, as the below example from the Cassino field campaign on 11 Sept. 2018 shows: The analysis of the morning and afternoon sampling shifts reveals the occurrence of the elements Fe, Ca and Si in different size bins as well as their significant temporal change in respective mass concentrations over the day while the distributions of several other elements in the aerosol remain unchanged. The validation of these results by backup measurements is planned. T2 - European Aerosol Conference EAC 2019 CY - Gothenburg, Sweden DA - 25.08.2019 KW - TXRF KW - Ambient air KW - Aerosol KW - Cascade impactor KW - Element analysis PY - 2019 AN - OPUS4-49582 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Quantification of element mass concentrations in aerosols by combination of cascade impactor sampling and in-situ TXRF Spectroscopy N2 - A mobile Bruker S2 Picofox TXRF spectrometer has been used in two field campaigns within the EMPIR env07 AEROMET project for the on-site analysis of cascade impactor aerosol samples.The results show that even at moderate air pollution levels – i.e.PM10 fairly below 20 μg/m³ - element mass concentrations in air in the range of 100 pg/m³could be measured in up to 13 size bins after sampling times of less than only 0.5 days. T2 - UFP 2019 Ultrafeinstaub in der Atmosphäre und in Innenräumen, 3. Symposium CY - Technische Universität Berlin, Germany DA - 19.09.2019 KW - TXRF ambient air aerosol chemical analysis aerosol element composition KW - Aerosol KW - TXRF KW - Cascade impactor KW - Aerosol element alanysis KW - Aerosol element mass concentration PY - 2019 AN - OPUS4-49580 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -