Search Results - "WIEDENSOHLER, Alfred"

An Overview on the Role of Relative Humidity in Airborne Transmission of SARS-CoV-2 in Indoor Environments by Ahlawat, Ajit, Wiedensohler, Alfred, Mishra, Sumit Kumar

“…COVID-19 disease is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which originated in Wuhan, China and spread with an astonishing…”
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The effect of particle size on cardiovascular disorders — The smaller the worse by Franck, Ulrich, Odeh, Siad, Wiedensohler, Alfred, Wehner, Birgit, Herbarth, Olf

“…Previous studies observed associations between airborne particles and cardio-vascular disease. Questions, however, remain as to which size of the inhalable…”
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A Comprehensive Model Test of the HONO Sources Constrained to Field Measurements at Rural North China Plain by Liu, Yuhan, Lu, Keding, Li, Xin, Dong, Huabin, Tan, Zhaofeng, Wang, Haichao, Zou, Qi, Wu, Yusheng, Zeng, Limin, Hu, Min, Min, Kyung-Eun, Kecorius, Simonas, Wiedensohler, Alfred, Zhang, Yuanhang

“…As nitrous acid (HONO) photolysis is an important source of hydroxyl radical (OH), apportionment of the ambient HONO sources is necessary to better understand…”
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Estimation of Size-Resolved Ambient Particle Density Based on the Measurement of Aerosol Number, Mass, and Chemical Size Distributions in the Winter in Beijing by Hu, Min, Peng, Jianfei, Sun, Kang, Yue, Dingli, Guo, Song, Wiedensohler, Alfred, Wu, Zhijun

“…Simultaneous measurements of aerosol size, distribution of number, mass, and chemical compositions were conducted in the winter of 2007 in Beijing using a Twin…”
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Significant concentrations of nitryl chloride sustained in the morning: investigations of the causes and impacts on ozone production in a polluted region of northern China by Tham, Yee Jun, Wang, Zhe, Li, Qinyi, Yun, Hui, Wang, Weihao, Wang, Xinfeng, Xue, Likun, Lu, Keding, Ma, Nan, Bohn, Birger, Li, Xin, Kecorius, Simonas, Größ, Johannes, Shao, Min, Wiedensohler, Alfred, Zhang, Yuanhang, Wang, Tao

“…Nitryl chloride (ClNO2) is a dominant source of chlorine radical in polluted environment, and can significantly affect the atmospheric oxidative chemistry…”
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Mutual promotion between aerosol particle liquid water and particulate nitrate enhancement leads to severe nitrate-dominated particulate matter pollution and low visibility by Wang, Yu, Chen, Ying, Wu, Zhijun, Shang, Dongjie, Bian, Yuxuan, Du, Zhuofei, Schmitt, Sebastian H, Su, Rong, Gkatzelis, Georgios I, Schlag, Patrick, Hohaus, Thorsten, Voliotis, Aristeidis, Lu, Keding, Zeng, Limin, Zhao, Chunsheng, Alfarra, M. Rami, McFiggans, Gordon, Wiedensohler, Alfred, Kiendler-Scharr, Astrid, Zhang, Yuanhang, Hu, Min

“…As has been the case in North America and western Europe, the SO2 emissions have substantially reduced in the North China Plain (NCP) in recent years…”
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Particle number size distribution in the urban atmosphere of Beijing, China by Wu, Zhijun, Hu, Min, Lin, Peng, Liu, Shang, Wehner, Birgit, Wiedensohler, Alfred

“…Two-year measurements of particle number size distribution (3 nm–10 μm) were conducted in Beijing, China since March 2004. Their seasonal, weekly and diurnal…”
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Warming-induced increase in aerosol number concentration likely to moderate climate change by Paasonen, Pauli, Asmi, Ari, Petäjä, Tuukka, Kajos, Maija K., Äijälä, Mikko, Junninen, Heikki, Holst, Thomas, Abbatt, Jonathan P. D., Arneth, Almut, Birmili, Wolfram, van der Gon, Hugo Denier, Hamed, Amar, Hoffer, András, Laakso, Lauri, Laaksonen, Ari, Richard Leaitch, W., Plass-Dülmer, Christian, Pryor, Sara C., Räisänen, Petri, Swietlicki, Erik, Wiedensohler, Alfred, Worsnop, Douglas R., Kerminen, Veli-Matti, Kulmala, Markku

“…Atmospheric aerosol particles can significantly influence the climate system. Analyses of observations and observation-based modelling data reveal that…”
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Changes in black carbon emissions over Europe due to COVID-19 lockdowns by Evangeliou, Nikolaos, Platt, Stephen M, Eckhardt, Sabine, Lund Myhre, Cathrine, Laj, Paolo, Alados-Arboledas, Lucas, Backman, John, Brem, Benjamin T, Fiebig, Markus, Flentje, Harald, Marinoni, Angela, Pandolfi, Marco, Yus-Dìez, Jesus, Prats, Natalia, Putaud, Jean P, Sellegri, Karine, Sorribas, Mar, Eleftheriadis, Konstantinos, Vratolis, Stergios, Wiedensohler, Alfred, Stohl, Andreas

“…Following the emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) responsible for COVID-19 in December 2019 in Wuhan (China) and its…”
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A European aerosol phenomenology – 6: scattering properties of atmospheric aerosol particles from 28 ACTRIS sites by Pandolfi, Marco, Alados-Arboledas, Lucas, Alastuey, Andres, Andrade, Marcos, Angelov, Christo, Artinano, Begona, Backman, John, Baltensperger, Urs, Bonasoni, Paolo, Bukowiecki, Nicolas, Collaud Coen, Martine, Conil, Sebastien, Coz, Esther, Crenn, Vincent, Dudoitis, Vadimas, Ealo, Marina, Eleftheriadis, Kostas, Favez, Olivier, Fetfatzis, Prodromos, Fiebig, Markus, Flentje, Harald, Ginot, Patrick, Gysel, Martin, Henzing, Bas, Hoffer, Andras, Holubova Smejkalova, Adela, Kalapov, Ivo, Kalivitis, Nikos, Kouvarakis, Giorgos, Kristensson, Adam, Kulmala, Markku, Lihavainen, Heikki, Lunder, Chris, Luoma, Krista, Lyamani, Hassan, Marinoni, Angela, Mihalopoulos, Nikos, Moerman, Marcel, Nicolas, Jose, O'Dowd, Colin, Petaja, Tuukka, Petit, Jean-Eudes, Pichon, Jean Marc, Prokopciuk, Nina, Putaud, Jean-Philippe, Rodriguez, Sergio, Sciare, Jean, Sellegri, Karine, Swietlicki, Erik, Titos, Gloria, Tuch, Thomas, Tunved, Peter, Ulevicius, Vidmantas, Vaishya, Aditya, Vana, Milan, Virkkula, Aki, Vratolis, Stergios, Weingartner, Ernest, Wiedensohler, Alfred, Laj, Paolo

“…This paper presents the light-scattering properties of atmospheric aerosol particles measured over the past decade at 28 ACTRIS observatories, which are…”
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Characterization of aerosol properties at Cyprus, focusing on cloud condensation nuclei and ice-nucleating particles by Gong, Xianda, Wex, Heike, Müller, Thomas, Wiedensohler, Alfred, Höhler, Kristina, Kandler, Konrad, Ma, Nan, Dietel, Barbara, Schiebel, Thea, Möhler, Ottmar, Stratmann, Frank

“…As part of the A-LIFE (Absorbing aerosol layers in a changing climate: aging, LIFEtime and dynamics) campaign, ground-based measurements were carried out in…”
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Role of the dew water on the ground surface in HONO distribution: a case measurement in Melpitz by Ren, Yangang, Stieger, Bastian, Spindler, Gerald, Grosselin, Benoit, Mellouki, Abdelwahid, Tuch, Thomas, Wiedensohler, Alfred, Herrmann, Hartmut

“…To characterize the role of dew water for the ground surface HONO distribution, nitrous acid (HONO) measurements with a Monitor for AeRosols and Gases in…”
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Mineral dust photochemistry induces nucleation events in the presence of SO2 by Dupart, Yoan, King, Stephanie M, Nekat, Bettina, Nowak, Andreas, Wiedensohler, Alfred, Herrmann, Hartmut, David, Gregory, Thomas, Benjamin, Miffre, Alain, Rairoux, Patrick, D'Anna, Barbara, George, Christian

“…Large quantities of mineral dust particles are frequently ejected into the atmosphere through the action of wind. The surface of dust particles acts as a sink…”
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CCN production by new particle formation in the free troposphere by Rose, Clémence, Sellegri, Karine, Moreno, Isabel, Velarde, Fernando, Ramonet, Michel, Weinhold, Kay, Krejci, Radovan, Andrade, Marcos, Wiedensohler, Alfred, Ginot, Patrick, Laj, Paolo

“…Global models predict that new particle formation (NPF) is, in some environments, responsible for a substantial fraction of the total atmospheric particle…”
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Indoor Black Carbon Concentrations and their Sources in Residential Environments: Validation of an Input-adaptive Proxy Model by Zhao, Jiangyue, Fung, Pak Lun, Zaidan, Martha Arbayani, Wehner, Birgit, Weinhold, Kay, Wiedensohler, Alfred, Hussein, Tareq

“…Exposure to black carbon (BC) in the residential environment was found to be positively associated with elevated blood pressure and cardiovascular disease…”
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A novel in-situ method to determine the respiratory tract deposition of carbonaceous particles reveals dangers of public commuting in highly polluted megacity by Madueño, Leizel, Kecorius, Simonas, Löndahl, Jakob, Schnelle-Kreis, Jürgen, Wiedensohler, Alfred, Pöhlker, Mira

“…Exposure to air pollutants is one of the major environmental health risks faced by populations globally. Information about inhaled particle deposition dose is…”
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Impact of Chemical Properties of Human Respiratory Droplets and Aerosol Particles on Airborne Viruses' Viability and Indoor Transmission by Ahlawat, Ajit, Mishra, Sumit Kumar, Herrmann, Hartmut, Rajeev, Pradhi, Gupta, Tarun, Goel, Vikas, Sun, Yele, Wiedensohler, Alfred

“…The airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been identified as a potential pandemic challenge, especially in…”
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New particle formation in Beijing, China: Statistical analysis of a 1-year data set by Wu, Zhijun, Hu, Min, Liu, Shang, Wehner, Birgit, Bauer, Stefan, Ma ßling, Andreas, Wiedensohler, Alfred, Petäjä, Tuukka, Dal Maso, Miikka, Kulmala, Markku

“…Particle number size distributions between 3 nm and 10 μm were measured in Beijing, China. New particle formation events were observed on around 40% of the…”
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Variation of CCN activity during new particle formation events in the North China Plain by Ma, Nan, Zhao, Chunsheng, Tao, Jiangchuan, Wu, Zhijun, Kecorius, Simonas, Wang, Zhibin, Größ, Johannes, Liu, Hongjian, Bian, Yuxuan, Kuang, Ye, Teich, Monique, Spindler, Gerald, Müller, Konrad, van Pinxteren, Dominik, Herrmann, Hartmut, Hu, Min, Wiedensohler, Alfred

“…The aim of this investigation was to obtain a better understanding of the variability of the cloud condensation nuclei (CCN) activity during new particle…”
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Contribution of particle formation to global cloud condensation nuclei concentrations by Spracklen, Dominick V., Carslaw, Kenneth S., Kulmala, Markku, Kerminen, Veli-Matti, Sihto, Sanna-Liisa, Riipinen, Ilona, Merikanto, Joonas, Mann, Graham W., Chipperfield, Martyn P., Wiedensohler, Alfred, Birmili, Wolfram, Lihavainen, Heikki

“…We use a global aerosol microphysics model to predict the contribution of boundary layer (BL) particle formation to regional and global distributions of cloud…”
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