@article{BergmannHaddadThoelkeJeongetal.2026, author = {Bergmann, Marie and Haddad-Thoelke, Pascale and Jeong, Haeran and Kappeler, Ron and Altug, Hicran and Oberwinster, Lukas and Boogaard, Hanna and Pohl, Tobias and Soppa, Vanessa and Ogurtsova, Katherine and Joss, Meltem Kutlar and Andersen, Zorana Jovanovic and Hoffmann, Barbara}, title = {Systematic review and meta-analysis on the health effects of long-term exposure to ultrafine particles}, series = {European Respiratory Review}, volume = {35}, journal = {European Respiratory Review}, number = {179}, publisher = {European Respiratory Society}, issn = {1600-0617}, doi = {10.1183/16000617.0156-2025}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60272}, pages = {39}, year = {2026}, abstract = {Background Ultrafine particles (≤100 nm diameter) may have a higher toxicity than larger particles but are still not regulated nor part of routine air pollution monitoring. So far, health effects of long-term exposure to ambient ultrafine particles are not well understood, owing to a lack of exposure data and epidemiological studies. Methods We conducted a systematic review and meta-analysis on the health effects of long-term exposure to ultrafine particles, including studies published until December 2024. A meta-analysis was conducted for outcomes with at least four available effect estimates. Confidence in the body of evidence was evaluated using the Office of Health Assessment and Translation method. Results We identified 85 studies investigating various mortality, morbidity and subclinical outcomes. In meta-analyses of single-pollutant models, we found positive associations with natural mortality (hazard ratio 1.06, 95\% CI 1.04-1.08) and C-reactive protein (10.14\% increase (95\% CI -0.51-21.99\%) per 10 000 pt·cm-3 increase in long-term exposure to ultrafine particles, with low and inadequate levels of evidence, respectively. The remaining studies revealed overall limited evidence for adverse effects on a wide range of outcomes. Less than half of the studies adjusted for co-pollutants. Conclusion The evidence base on long-term health effects of ultrafine particles has increased substantially in the past decade, while the overall evidence for independent effects of long-term ultrafine particle exposure remains inadequate to low. More studies are needed to draw firm conclusions about the independent adverse effects of long-term ultrafine particles on various health end-points, with a special focus on the influence of co-pollutant adjustment.}, subject = {Schadstoffbelastung}, language = {en} } @article{UruciFlorouPaglioneetal.2025, author = {Uruci, Petro and Florou, Kalliopi and Paglione, Marco and Kaltsonoudis, Christos and Picquet-Varrault, B{\´e}n{\´e}dicte and Doussin, Jean-Fran{\c{c}}ois and Cazaunau, Mathieu and Leskinen, Ari and Hao, Liqing and Virtanen, Annele and Bell, David M. and Mutzel, Anke and Mothes, Falk and Herrmann, Hartmut and R{\´o}denas, Milagros and Mu{\~n}oz, Amalia and Fuchs, Hendrik and Bohn, Birger and Nehr, Sascha and Alfarra, M. Rami and Voliotis, Aristeidis and McFiggans, Gordon and Patroescu-Klotz, Iulia V. and Illmann, Niklas and Pandis, Spyros N.}, title = {Toluene photo-oxidation and secondary organic aerosol formation: EUROCHAMP-2020 multi-chamber experiments}, series = {Journal of Atmospheric Chemistry}, volume = {82}, journal = {Journal of Atmospheric Chemistry}, number = {2}, publisher = {Springer Nature}, issn = {0167-7764}, doi = {10.1007/s10874-025-09485-2}, year = {2025}, language = {en} } @inproceedings{NehrBausCınar2025, author = {Nehr, Sascha and Baus, Lukas and {\c{C}}{\i}nar, H.}, title = {L{\"u}ftung in Bildungseinrichtungen, 29. Oktober 2025, K{\"o}ln}, series = {2. K{\"o}lner Innenraum-Forum}, booktitle = {2. K{\"o}lner Innenraum-Forum}, publisher = {HYGIUM - Zentrum f{\"u}r Hygiene und Umweltmedizin GmbH}, year = {2025}, language = {de} } @techreport{OliveiraBritoPohlNehr2025, author = {Oliveira Brito, Marcel and Pohl, Tobias and Nehr, Sascha}, title = {Sicheres Schadstoffmonitoring per UAV in Gefahrenszenarien f{\"u}r Einsatzkr{\"a}fte (SiSchaMo): Erforschung eines modularen Sensorsystems zur dreidimensionalen Erfassung und Charakterisierung von Gefahrstoffwolken mittels UAV in-situ Messungen ; Abschlussbericht zum Teilvorhaben}, publisher = {Technische Informationsbibliothek}, address = {Hannover}, doi = {10.34657/18646}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-55799}, pages = {40}, year = {2025}, subject = {Drohne}, language = {de} } @inproceedings{StaehlerWeyersHoffmannetal.2025, author = {St{\"a}hler, Lisa and Weyers, Simone and Hoffmann, Barbara and Soppa, Vanessa and Oberwinster, Lukas and Weber, Konradin and Pohl, Tobias and Kuß, Oliver and Lang, Alexander and Pischke, Claudia}, title = {UNITY: Multistrategische Intervention zur F{\"o}rderung von Radmobilit{\"a}t, Gesundheit und Nachhaltigkeit im Rahmen der Stadtentwicklung D{\"u}sseldorf [Vortragsabstract]}, series = {60. Jahrestagung der Deutschen Gesellschaft f{\"u}r Sozialmedizin und Pr{\"a}vention (DGSMP) Teilhabe und Ko-Kreation, 17. - 19. September 2025, Berlin}, booktitle = {60. Jahrestagung der Deutschen Gesellschaft f{\"u}r Sozialmedizin und Pr{\"a}vention (DGSMP) Teilhabe und Ko-Kreation, 17. - 19. September 2025, Berlin}, year = {2025}, subject = {Stadtplanung}, language = {de} } @inproceedings{StaehlerWeyersHoffmannetal.2025, author = {St{\"a}hler, Lisa and Weyers, Simone and Hoffmann, Barbara and Soppa, Vanessa and Oberwinster, Lukas and Nehr, Sascha and Pohl, Tobias and Kuß, Oliver and Lang, Alexander and Pischke, Claudia}, title = {UNITY: Multistrategische Intervention zur F{\"o}rderung von Radmobilit{\"a}t, Gesundheit und Nachhaltigkeit im Rahmen der Stadtentwicklung D{\"u}sseldorf - Teilprojekt 1 [Poster]}, series = {60. Jahrestagung der Deutschen Gesellschaft f{\"u}r Sozialmedizin und Pr{\"a}vention (DGSMP) Teilhabe und Ko-Kreation, 17. - 19. September 2025, Berlin}, booktitle = {60. Jahrestagung der Deutschen Gesellschaft f{\"u}r Sozialmedizin und Pr{\"a}vention (DGSMP) Teilhabe und Ko-Kreation, 17. - 19. September 2025, Berlin}, year = {2025}, subject = {Stadtplanung}, language = {de} } @inproceedings{SoppaOberwinsterPischkeetal.2025, author = {Soppa, Vanessa and Oberwinster, Lukas and Pischke, Claudia and St{\"a}hler, Lisa and Weyers, Simone and Nehr, Sascha and Pohl, Tobias and Kuß, Oliver and Lang, Alexander and Hoffmann, Barbara}, title = {UNITY: Multistrategische Intervention zur F{\"o}rderung von Radmobilit{\"a}t, Gesundheit und Nachhaltigkeit im Rahmen der Stadtentwicklung D{\"u}sseldorf - Teilprojekt 2 [Poster]}, series = {60. Jahrestagung der Deutschen Gesellschaft f{\"u}r Sozialmedizin und Pr{\"a}vention (DGSMP) Teilhabe und Ko-Kreation, 17. - 19. September 2025, Berlin}, booktitle = {60. Jahrestagung der Deutschen Gesellschaft f{\"u}r Sozialmedizin und Pr{\"a}vention (DGSMP) Teilhabe und Ko-Kreation, 17. - 19. September 2025, Berlin}, year = {2025}, language = {de} } @inproceedings{PieriDiazBlandetal.2014, author = {Pieri, D. C. and Diaz, J. A. and Bland, G. and Fladeland, M. M. and Abtahi, A. and Alan, A. Jr. and Alegria, O. and Azofeifa, S. and Berthold, R. and Corrales, E. and Fuerstenau, S. and Gerardi, J. and Herlth, D. and Hickman, G. and Hunter, G. and Linick, J. and Mardigal, Y. and Makel, D. and Miles, T. and Realmuto, V. J. and Storms, B. and Vogel, A. and Kolyer, R. and Weber, Konradin}, title = {Systematic observations of Volc{\´a}n Turrialba, Costa Rica, with small unmanned aircraft and aerostats (UAVs): the Costa Rican Airborne Research and Technology Applications (CARTA) missions [Abstract]}, series = {American Geophysical Union, Fall Meeting 2014}, booktitle = {American Geophysical Union, Fall Meeting 2014}, year = {2014}, abstract = {For several years, the University of Costa Rica, NASA Centers (e.g., JPL, ARC, GSFC/WFF, GRC) \& NASA contractors-partners have made regular in situ measurements of aerosols \& gases at Turrialba Volcano in Costa Rica, with aerostats (e.g., tethered balloons \& kites), \& free-flying fixed wing UAVs (e.g., Dragon Eye, Vector Wing 100, DELTA 150), at altitudes up to 12.5Kft ASL within 5km of the summit. Onboard instruments included gas detectors (e.g., SO2, CO2), visible \& thermal IR cameras, air samplers, temperature pressure \& humidity sensors, particle counters, \& a nephelometer. Deployments are timed to support bimonthly overflights of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) onboard the NASA Terra satellite (26 deployments to date). In situ observations of dilute plume SO2 concentrations (~1-20ppmv), plume dimensions, and associated temperature, pressure, \& humidity profiles, validate detailed radiative transfer-based SO2 retrievals, as well as archive-wide ASTER band-ratio SO2 algorithms. Our recent UAV-based CO2 observations confirm high concentrations (e.g., ~3000ppmv max at summit jet), with 1000-1500ppmv flank values, and essentially global background CO2 levels (400ppmv) over distal surroundings. Transient Turrialba He detections (up to 20ppmv) were obtained with a small (~10kg) airborne mass spectrometer on a light aircraft—a UAV version (~3kg) will deploy there soon on the UCR DELTA 500. Thus, these platforms, though small (most payloads <500gm), can perform valuable systematic measurements of potential eruption hazards, as well as of volcano processes. Because they are economical, flexible, and effective, such platforms promise unprecedented capabilities for researchers and responders throughout Central and South America, undertaking volcanic data acquisitions uniquely suited to such small aircraft in close proximity to known hazards, or that were previously only available using full-sized manned aircraft. This work was carried out, in part, at the Jet Propulsion Laboratory of the California Institute of Technology under NASA contract. We are grateful to the Universidad de Costa Rica, the NASA Airborne Science and Earth Surface \& Interior Programs, the Direcci{\´o}n General de Aeron{\´a}utica Civil de Costa Rica, and FH D{\"u}sseldorf for their support.}, subject = {Vulkanismus}, language = {en} } @inproceedings{VogelWeberEliassonetal.2012, author = {Vogel, Andreas and Weber, Konradin and Eliasson, Jonas and Palsson, Asgeir and Moser, H. M. and Palsson, Thorgeir and von L{\"o}wis, S. and Fischer, Christian}, title = {Airborne and groundbased measurements of ash particles on Iceland and over Germany during the Gr{\´i}msv{\"o}tn eruption May 2011 [Abstract]}, series = {Geophysical Research Abstracts:EGU General Assembly 2012, held 22-27 April, 2012 in Vienna, Austria}, booktitle = {Geophysical Research Abstracts:EGU General Assembly 2012, held 22-27 April, 2012 in Vienna, Austria}, publisher = {Copernicus}, address = {G{\"o}ttingen}, pages = {12854}, year = {2012}, abstract = {The eruption of the Grimsv{\"o}tn volcano in May 2010 posed with its ash plume a thread to the aviation in northern Europe. Because of ash plume forecasts of the VAAC London the airport of Keflavik in Iceland as well as airports in England, Scotland and Scandinavia were closed for some time, which caused the cancellation or change of about 500 flights in Europe. Even in Germany the airports of Bremen, Hamburg and Berlin were closed for several hours on 25 May 2011. During this eruption period in May 2011, a team of the Duesseldorf University of Applied Sciences, the University of Iceland, the University of Reykjavik and the IMO has performed airborne in-situ measurements over Iceland and Germany as well as ground based measurements in the south of Iceland. The ground based measurements were performed continuously during the whole eruption period at two significant positions (Skogar and Hvollsv{\"o}llur) with optical particle counters (OPCs). The measurement method was based on measuring the airborne concentrations of the classic aerosol components (PM10, PM2.5 and PM1) and TSP (total suspended particles) every 6 seconds. Additional measurement flights on Iceland were started already one day after the beginning of the eruption (twelve in-situ measurement flights) and marked the spatial and temporal spread of volcanic ash in the atmosphere. For the flights light slow flying piston engine powered airplanes where used. The flights over Iceland focused on the western part of Iceland in the region of Reykjavik and Keflavik and over the international airport in Keflavik and were mostly coordinated by ISAVIA. The measurement flights helped to keep Keflavik International Airport open for many additional hours despite of adverse predictions by the London VAAC model, because it was possible to observe the particle concentration on-line during the flights. In Germany a measurement flight was performed on 25 May 2012 over the northern part of Germany where the volcanic ash cloud was forecasted from the dispersion model of the London VAAC. This flight was performed on the behalf of the German Weather Service (DWD). The measurement flights revealed most time relative low airborne ash concentrations over western Iceland, although the groundbased measured ash concentrations in the south of Iceland nearer to the Grimsv{\"o}tn were very high. In Germany the measured concentrations during the flight were low enough to be consistent with the re-opening of the airports Bremen, Hamburg and Berlin, which were closed by the authorities for several hours on 25 May 2011 because of high concentration predictions by the VAAC-model. The measurement flights clearly proved that OPCs, based on slow flying piston-motor driven aircrafts, are very suitable for the determination of airborne ash particles during volcanic eruptions. This is an important issue for air traffic safety.}, language = {en} } @article{HeninPetitRohwetteretal.2011, author = {Henin, Stefano and Petit, Yannick and Rohwetter, Philipp and Stelmaszczyk, Kamil and Hao, Zuoqiang and Nakaema, Walter Morinobu and Vogel, Andreas and Pohl, Tobias and Schneider, Friedhelm and Kasparian, J{\´e}r{\^o}me and Weber, Konradin and W{\"o}ste, Ludger and Wolf, Jean-Pierre}, title = {Field measurements suggest the mechanism of laser-assisted water condensation}, series = {Nature Communications}, volume = {2}, journal = {Nature Communications}, number = {1}, publisher = {Springer Nature}, issn = {2041-1723}, doi = {10.1038/ncomms1462}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-52439}, year = {2011}, abstract = {Because of the potential impact on agriculture and other key human activities, efforts have been dedicated to the local control of precipitation. The most common approach consists of dispersing small particles of dry ice, silver iodide, or other salts in the atmosphere. Here we show, using field experiments conducted under various atmospheric conditions, that laser filaments can induce water condensation and fast droplet growth up to several μm in diameter in the atmosphere as soon as the relative humidity exceeds 70\%. We propose that this effect relies mainly on photochemical formation of p.p.m.-range concentrations of hygroscopic Hno3, allowing efficient binary Hno3-H2o condensation in the laser filaments. Thermodynamic, as well as kinetic, numerical modelling based on this scenario semiquantitatively reproduces the experimental results, suggesting that particle stabilization by Hno3 has a substantial role in the laser-induced condensation.}, subject = {Kondensation}, language = {en} }