Mohr, Claudia Gysel-Beer, Martin
Published in
Chimia
Atmospheric aerosols can be emitted directly as particles or formed in the atmosphere from phase transitions of gaseous compounds with low enough vapor pressure. During their lifecycle in the atmosphere, aerosols undergo multiphase changes, altering chemical composition, reactivity, physical and optical properties, ultimately influencing how they i...
Hueglin, Christoph Buchmann, Brigitte Steinbacher, Martin Emmenegger, Lukas
Published in
Chimia
Awareness of atmospheric air quality in Switzerland became a concern in the 1960s, as a result of which the Swiss National Air Pollution Monitoring Network (Nationales Beobachtungsnetz für Luftfremdstoffe - NABEL) was created in the 1970s. This paper describes the establishment and evolution of NABEL, emphasizing its important role in monitoring ai...
Tumminello, Paul Niles, Renee Valdez, Vanessa Madawala, Chamika Gamage, Dilini Kimble, KeLa Leibensperger, Raymond Huang, Chunxu Kaluarachchi, Chathuri Dinasquet, Julie
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Viscosity, or the thickness, of aerosols plays a key role in atmospheric processes like ice formation, water absorption, and heterogeneous kinetics. However, the viscosity of sea spray aerosols (SSA) has not been widely studied. This research explored the relationship between particle size and viscosity of authentic SSA particles through particle b...
Kasongo, John Alleman, Laurent Kanda, Jean-Marie Kaniki, Arthur Riffault, Véronique
The presence of various contaminants in airborne dusts from metal mining sites poses obvious risks to human health and the environment. Yet, few studies have thoroughly investigated the properties of airborne particles in terms of their morphology, size distribution and chemical composition, that are associated with health effects around mining act...
Bushrod, Emilia E Thomas, Elizabeth R Zherebker, Alexander Giorio, Chiara
Publication status: Published / Biogenic volatile organic compounds (BVOCs) contribute to the formation of secondary organic aerosol (SOA) through atmospheric oxidation. Previously detected SOA-markers in northern hemisphere ice cores from Alaska, Greenland, Russia, and Switzerland indicate the transportation of isoprene and monoterpene oxidation p...
Hoyos-Restrepo, Manuela Ceolato, Romain Jin, Yoshitaka
Atmospheric High Spectral Resolution Lidars (HSRLs) are unable to perform measurements close to the emission source because, apart from being blind in the first hundredths of meters (overlap problem), their spatiotemporal resolution is insufficient since they use low repetition rate and ultranarrow band (and thus long-pulse) lasers. In this work, w...
Samia, Boulos Durand, Amandine Temime-Roussel, Brice Ravier, Sylvain Quivet, Etienne Wortham, Henri
International audience
Samia, Boulos Durand, Amandine Ravier, Sylvain Temime-Roussel, Brice Quivet, Etienne Wortham, Henri
Currently used pesticides are semi-volatile organic compounds and often found in the particulate phase. In fact, all European regulations account for the reactivity of pesticides with OH radicals in the gaseous phase, this approximation might significantly underestimate their lifetimes. In our study, we determined the atmospheric half-lives towards...
Omaiye, Esther Luo, Wentai McWhirter, Kevin Talbot, Prue
Our purpose was to test the hypothesis that ultrasonic cigarettes (u-cigarettes), which operate at relatively low temperatures, produce aerosols that are less harmful than heated-coil pod-style electronic cigarettes (e-cigarettes). The major chemicals in SURGE u-cigarette fluids and aerosols were quantified, their cytotoxicity and cellular effects ...
Edwards, Kasey Kapur, Sukriti Fang, Ting Cesler-Maloney, Meeta Yang, Yuhan Holen, Andrew Wu, Judy Robinson, Ellis DeCarlo, Peter Pratt, Kerri
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Environmentally persistent free radicals (EPFRs) play an important role in aerosol effects on air quality and public health, but their atmospheric abundance and sources are poorly understood. We measured EPFRs contained in PM2.5 collected in Fairbanks, Alaska, in winter 2022. We find that EPFR concentrations were enhanced during surface-based inver...
