Articles | Volume 23, issue 1
https://doi.org/10.5194/acp-23-235-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-235-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Jan 2023
Research article |
| 06 Jan 2023
| 06 Jan 2023
Annual cycle of hygroscopic properties and mixing state of the suburban aerosol in Athens, Greece
Christina Spitieri
CORRESPONDING AUTHOR
Environmental Radioactivity Laboratory, Institute of Nuclear and
Radiological Science and Technology, Energy and Safety, NCSR Demokritos,
15310 Ag. Paraskevi, Athens, Greece
Maria Gini
CORRESPONDING AUTHOR
Environmental Radioactivity Laboratory, Institute of Nuclear and
Radiological Science and Technology, Energy and Safety, NCSR Demokritos,
15310 Ag. Paraskevi, Athens, Greece
Martin Gysel-Beer
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute,
Forschungsstrasse 111, Villigen PSI, Switzerland
Konstantinos Eleftheriadis
Environmental Radioactivity Laboratory, Institute of Nuclear and
Radiological Science and Technology, Energy and Safety, NCSR Demokritos,
15310 Ag. Paraskevi, Athens, Greece
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Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-415, https://doi.org/10.5194/essd-2026-415, 2026
Preprint under review for ESSD
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All clouds form around aerosol particles, and their abundance influences cloud properties. In turn, clouds affect climate by changing how energy moves through the atmosphere, making them important for climate change. To better understand these interactions, we need accurate information on how many aerosol particles are in the atmosphere. Therefore, we have developed a new 21-year global dataset of particle concentrations relevant for cloud formation.
Julian Weng, Yufang Hao, Benjamin T. Brem, Tianqu Cui, Peeyush Khare, Lubna Dada, Kaspar R. Daellenbach, Sophie Darfeuil, Gaëlle Uzu, Jean-Luc Jaffrezo, Martin Steinbacher, Stefan Reimann, Thaleia Gkraikou, Konstantina Oikonomou, Jean Sciare, Martine Collaud Coen, Claudia Mohr, Andre S. H. Prévôt, Martin Gysel-Beer, Imad El Haddad, and Patrik Winiger
EGUsphere, https://doi.org/10.5194/egusphere-2026-3660, https://doi.org/10.5194/egusphere-2026-3660, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Long-term observations at the Jungfraujoch High Altitude Research Station show that, alongside air mass transport, sustained oxidative processing shaped by atmospheric water vapor plays a central role in driving aerosol loading and composition. Combining detailed aerosol chemical characterization with process-level insights, we provide important observational benchmarks for improving atmospheric model performance in the remote free troposphere, where uncertainties remain particularly high.
Martina Mazzini, Diego Aliaga, Janne Lamphilati, Martin Gysel-Beer, Benjamin Tobias Brem, Robin Lewis Modini, Dominic Heslin-Rees, Tareq Hussein, Marco Zanatta, Paolo Cristofanelli, Federico Bianchi, Markku Kulmala, and Angela Marinoni
Atmos. Chem. Phys., 26, 8893–8912, https://doi.org/10.5194/acp-26-8893-2026, https://doi.org/10.5194/acp-26-8893-2026, 2026
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This study investigates particle number size distribution at two high-altitude European stations to better understand the mechanisms driving new particle formation (NPF) in the free troposphere. Interestingly, despite a consistently higher background of freshly nucleated particles at Jungfraujoch, NPF events were more frequent and intense at Monte Cimone, which also shows higher formation and growth rates, likely due to the proximity of the polluted planetary boundary layer from the Po Valley.
Luka Drinovec, Jesus Yus-Diez, Tobias Bühlmann, Maitane Iturrate-Garcia, Tobias Hammer, Konstantina Vasilatou, Arun Babu Suja, Thomas Müller, Krzysztof Ciupek, Alejandro Keller, Ernest Weingartner, Jorge Saturno, Maria Gini, Kostas Eleftheriadis, John Backman, Eija Asmi, and Griša Močnik
EGUsphere, https://doi.org/10.5194/egusphere-2026-1501, https://doi.org/10.5194/egusphere-2026-1501, 2026
This preprint is open for discussion and under review for Atmospheric Measurement Techniques (AMT).
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We evaluated a traceable calibration method for aerosol absorption instruments based on monodisperse nigrosin particles. The absorption coefficient calculated using Mie theory was compared with measurements using the Photo-Thermal Aerosol Absorption Monitor, traceably calibrated with NO2. Particle classification using setups with the differential mobility analyzer, the centrifugal particle mass analyzer and a tandem of both in series were tested.
Stefanos Papagiannis, Manousos I. Manousakas, Dimitrios F. Anagnostopoulos, Michael Pikridas, Rima Baalbaki, Jean Sciare, Niall O'Sullivan, Stig Hellebust, John Wenger, Kirsten N. Fossum, Jurgita Ovadnevaite, Anja Tremper, David Green, Konstantinos Eleftheriadis, and Evangelia Diapouli
Atmos. Meas. Tech., 19, 3491–3509, https://doi.org/10.5194/amt-19-3491-2026, https://doi.org/10.5194/amt-19-3491-2026, 2026
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We compared near real-time and benchtop XRF spectrometers measuring trace elements in airborne particles across three European cities. Results show filter material dictates accuracy: Teflon yielded strong inter-instrument agreement, while quartz caused systematic attenuation errors for light elements. Because empirical corrections left residual biases, using optimal substrates—preferably Teflon—is essential for accurately tracking pollution sources.
Marilena Gidarakou, Alexandros Papayannis, Maria Mylonaki, Eleni Kralli, Kostas Eleftheratos, Ilias Fountoulakis, Olga Zografou, Evangelia Diapouli, Maria I. Gini, Stergios Vratolis, Konstantinos Granakis, Konstantinos Eleftheriadis, Nikolaos Evangeliou, Christine Groot Zwaaftink, Eugenia Giagka, Marios-Andreas Zagklis, and Igor Veselovskii
Atmos. Chem. Phys., 26, 4313–4339, https://doi.org/10.5194/acp-26-4313-2026, https://doi.org/10.5194/acp-26-4313-2026, 2026
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In summer 2023, Greece experienced one of its most intense wildfire seasons, with major fires across several regions. This study examines how smoke from two major fire events affected air quality and ultraviolet radiation in Athens using satellite images, modelling, and ground-based measurements to understand the optical and microphysical behavior of airborne particles.
Ross James Herbert, Larissa Lacher, Alexander Böhmländer, Mark D. Tarn, Antione Canzi, Aidan Pantoya, Evelyn Freney, Kristina Höhler, Pia Bogert, Celine Planche, Ping Tian, Michael Adams, Sarah Barr, David Brus, Nicole Büttner, Martin Daily, Konstantinos Doulgeris, Konstantinos Eleftheridadis, Grant Forster, Romy Fösig, Dimitrios Georgakopoulos, Maria Gini, A. Gannett Hallar, Radovan Krejci, Elke Ludewig, Mauro Mazzola, Ian B. McCubbin, Tuukka Petäjä, Joseph Robinson, Franziska Vogel, Paul Zieger, Stephen R. Arnold, Kenneth S. Carslaw, Naruki Hiranuma, Ottmar Möhler, and Benjamin J. Murray
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-41, https://doi.org/10.5194/essd-2026-41, 2026
Revised manuscript under review for ESSD
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Ice formation in sub-zero clouds is influenced by airborne particles called ice-nucleating particles (INPs), whose concentrations vary substantially over short time and spatial scales. To assess the role of INPs in our climate, a comprehensive and consistent global dataset is essential. Our GloPINE model-ready dataset is a major step in this direction, comprising 36,000 measurements made using a single instrument design (PINE) over 70,000 hours of operation at 20 northern hemisphere sites.
Martine Collaud Coen, Benjamin Tobias Brem, Martin Gysel-Beer, Robin Modini, Stephan Henne, Martin Steinbacher, Davide Putero, Maria I. Gini, and Kostantinos Eleftheriadis
Atmos. Chem. Phys., 26, 1623–1645, https://doi.org/10.5194/acp-26-1623-2026, https://doi.org/10.5194/acp-26-1623-2026, 2026
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Saharan dust (SD) is transported over long distances by large-scale atmospheric circulation, reaching the Jungfraujoch high-altitude station 30 to 150 times per year. This study analyses the influence of instrument types on the SD detection using the single scattering albedo spectral dependence. This optical method is then compared to those based on size distribution and back-trajectories. The 23-year climatology of dust frequency and mass as well as the source sensitivity are also examined.
Manousos I. Manousakas, Olga Zografou, Francesco Canonaco, Evangelia Diapouli, Stefanos Papagiannis, Maria Gini, Vasiliki Vasilatou, Anna Tobler, Stergios Vratolis, Jay G. Slowik, Kaspar R. Daellenbach, André S. H. Prevot, and Konstantinos Eleftheriadis
Atmos. Meas. Tech., 18, 3983–4002, https://doi.org/10.5194/amt-18-3983-2025, https://doi.org/10.5194/amt-18-3983-2025, 2025
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Air pollution from airborne particles is a major health and environmental concern, especially in cities. Understanding the particles' sources is key to addressing this issue, but traditional methods require time-consuming sampling, delaying action. Our study introduces a real-time monitoring system that uses advanced instruments and software to track pollution instantly. This technology allows faster, more precise pollution analysis, helping cities create targeted strategies to improve air quality.
Akriti Masoom, Stelios Kazadzis, Robin Lewis Modini, Martin Gysel-Beer, Julian Gröbner, Martine Collaud Coen, Francisco Navas-Guzman, Natalia Kouremeti, Benjamin Tobias Brem, Nora Kristina Nowak, Giovanni Martucci, Maxime Hervo, and Sophie Erb
EGUsphere, https://doi.org/10.5194/egusphere-2025-2755, https://doi.org/10.5194/egusphere-2025-2755, 2025
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This article aims at providing details on the special aerosol properties observed during 2023 Canadian wildfire plume transport and exploring the synergism between remote sensing and in situ measurements for investigating the cause of the occurrence of the observations of special aerosol properties.
Lubna Dada, Benjamin T. Brem, Lidia-Marta Amarandi-Netedu, Martine Collaud Coen, Nikolaos Evangeliou, Christoph Hueglin, Nora Nowak, Robin Modini, Martin Steinbacher, and Martin Gysel-Beer
Aerosol Research, 3, 315–336, https://doi.org/10.5194/ar-3-315-2025, https://doi.org/10.5194/ar-3-315-2025, 2025
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We investigated the sources of ultrafine particles (UFPs) in Payerne, Switzerland, highlighting the significant role of secondary processes in elevating UFP concentrations to levels comparable to urban areas. As the first study in rural midland Switzerland to analyze new particle formation events and secondary contributions, it offers key insights for air quality regulation and the role of agriculture in Switzerland and central Europe.
Natalie M. Mahowald, Longlei Li, Julius Vira, Marje Prank, Douglas S. Hamilton, Hitoshi Matsui, Ron L. Miller, P. Louis Lu, Ezgi Akyuz, Daphne Meidan, Peter Hess, Heikki Lihavainen, Christine Wiedinmyer, Jenny Hand, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Africa Barreto, Francisco Barraza, Silvia Becagli, Giulia Calzolai, Shankararaman Chellam, Ying Chen, Patrick Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Johann Engelbrecht, Corinne Galy-Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Roy M. Harrison, Chris Heyes, Barak Herut, Philip Hopke, Christoph Hüglin, Maria Kanakidou, Zsofia Kertesz, Zbigniew Klimont, Katriina Kyllönen, Fabrice Lambert, Xiaohong Liu, Remi Losno, Franco Lucarelli, Willy Maenhaut, Beatrice Marticorena, Randall V. Martin, Nikolaos Mihalopoulos, Yasser Morera-Gómez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Patricia Smichowski, Daniela Varrica, Brenna Walsh, Crystal L. Weagle, and Xi Zhao
Atmos. Chem. Phys., 25, 4665–4702, https://doi.org/10.5194/acp-25-4665-2025, https://doi.org/10.5194/acp-25-4665-2025, 2025
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Aerosol particles are an important part of the Earth system, but their concentrations are spatially and temporally heterogeneous, as well as being variable in size and composition. Here, we present a new compilation of PM2.5 and PM10 aerosol observations, focusing on the spatial variability across different observational stations, including composition, and demonstrate a method for comparing the data sets to model output.
Hector Navarro-Barboza, Jordi Rovira, Vincenzo Obiso, Andrea Pozzer, Marta Via, Andres Alastuey, Xavier Querol, Noemi Perez, Marjan Savadkoohi, Gang Chen, Jesus Yus-Díez, Matic Ivancic, Martin Rigler, Konstantinos Eleftheriadis, Stergios Vratolis, Olga Zografou, Maria Gini, Benjamin Chazeau, Nicolas Marchand, Andre S. H. Prevot, Kaspar Dallenbach, Mikael Ehn, Krista Luoma, Tuukka Petäjä, Anna Tobler, Jaroslaw Necki, Minna Aurela, Hilkka Timonen, Jarkko Niemi, Olivier Favez, Jean-Eudes Petit, Jean-Philippe Putaud, Christoph Hueglin, Nicolas Pascal, Aurélien Chauvigné, Sébastien Conil, Marco Pandolfi, and Oriol Jorba
Atmos. Chem. Phys., 25, 2667–2694, https://doi.org/10.5194/acp-25-2667-2025, https://doi.org/10.5194/acp-25-2667-2025, 2025
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Brown carbon (BrC) absorbs ultraviolet (UV) and visible light, influencing climate. This study explores BrC's imaginary refractive index (k) using data from 12 European sites. Residential emissions are a major organic aerosol (OA) source in winter, while secondary organic aerosol (SOA) dominates in summer. Source-specific k values were derived, improving model accuracy. The findings highlight BrC's climate impact and emphasize source-specific constraints in atmospheric models.
Valeria Mardoñez-Balderrama, Griša Močnik, Marco Pandolfi, Robin L. Modini, Fernando Velarde, Laura Renzi, Angela Marinoni, Jean-Luc Jaffrezo, Isabel Moreno R., Diego Aliaga, Federico Bianchi, Claudia Mohr, Martin Gysel-Beer, Patrick Ginot, Radovan Krejci, Alfred Wiedensohler, Gaëlle Uzu, Marcos Andrade, and Paolo Laj
Atmos. Chem. Phys., 24, 12055–12077, https://doi.org/10.5194/acp-24-12055-2024, https://doi.org/10.5194/acp-24-12055-2024, 2024
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Levels of black carbon (BC) are scarcely reported in the Southern Hemisphere, especially in high-altitude conditions. This study provides insight into the concentration level, variability, and optical properties of BC in La Paz and El Alto and at the Chacaltaya Global Atmosphere Watch Station. Two methods of source apportionment of absorption were tested and compared showing traffic as the main contributor to absorption in the urban area, in addition to biomass and open waste burning.
Kunfeng Gao, Franziska Vogel, Romanos Foskinis, Stergios Vratolis, Maria I. Gini, Konstantinos Granakis, Anne-Claire Billault-Roux, Paraskevi Georgakaki, Olga Zografou, Prodromos Fetfatzis, Alexis Berne, Alexandros Papayannis, Konstantinos Eleftheridadis, Ottmar Möhler, and Athanasios Nenes
Atmos. Chem. Phys., 24, 9939–9974, https://doi.org/10.5194/acp-24-9939-2024, https://doi.org/10.5194/acp-24-9939-2024, 2024
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Ice nucleating particle (INP) concentrations are required for correct predictions of clouds and precipitation in a changing climate, but they are poorly constrained in climate models. We unravel source contributions to INPs in the eastern Mediterranean and find that biological particles are important, regardless of their origin. The parameterizations developed exhibit superior performance and enable models to consider biological-particle effects on INPs.
Romanos Foskinis, Ghislain Motos, Maria I. Gini, Olga Zografou, Kunfeng Gao, Stergios Vratolis, Konstantinos Granakis, Ville Vakkari, Kalliopi Violaki, Andreas Aktypis, Christos Kaltsonoudis, Zongbo Shi, Mika Komppula, Spyros N. Pandis, Konstantinos Eleftheriadis, Alexandros Papayannis, and Athanasios Nenes
Atmos. Chem. Phys., 24, 9827–9842, https://doi.org/10.5194/acp-24-9827-2024, https://doi.org/10.5194/acp-24-9827-2024, 2024
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Analysis of modeling, in situ, and remote sensing measurements reveals the microphysical state of orographic clouds and their response to aerosol from the boundary layer and free troposphere. We show that cloud response to aerosol is robust, as predicted supersaturation and cloud droplet number levels agree with those determined from in-cloud measurements. The ability to determine if clouds are velocity- or aerosol-limited allows for novel model constraints and remote sensing products.
Olga Zografou, Maria Gini, Prodromos Fetfatzis, Konstantinos Granakis, Romanos Foskinis, Manousos Ioannis Manousakas, Fotios Tsopelas, Evangelia Diapouli, Eleni Dovrou, Christina N. Vasilakopoulou, Alexandros Papayannis, Spyros N. Pandis, Athanasios Nenes, and Konstantinos Eleftheriadis
Atmos. Chem. Phys., 24, 8911–8926, https://doi.org/10.5194/acp-24-8911-2024, https://doi.org/10.5194/acp-24-8911-2024, 2024
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Characterization of PM1 and positive matrix factorization (PMF) source apportionment of organic and inorganic fractions were conducted at the high-altitude station (HAC)2. Cloud presence reduced PM1, affecting sulfate more than organics. Free-troposphere (FT) conditions showed more black carbon (eBC) than planetary boundary layer (PBL) conditions.
Olga Zografou, Christos Kaltsonoudis, Maria Gini, Angeliki Matrali, Elias Panagiotopoulos, Alexandros Lekkas, Dimitris Papanastasiou, Spyros N. Pandis, and Konstantinos Eleftheriadis
EGUsphere, https://doi.org/10.5194/egusphere-2024-2126, https://doi.org/10.5194/egusphere-2024-2126, 2024
Preprint archived
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A novel charge transfer ionization orthogonal Time-of-Flight Mass Spectrometer (oToF-MS) was field evaluated for the first time during a field campaign at the suburban DEM station in Athens, Greece from May to August 2023 focusing on key ambient Volatile Organic Compounds (VOCs). The results demonstrate the strengths of the new instrument in performing online, real time measurements of ambient VOCs.
Dominic Heslin-Rees, Peter Tunved, Johan Ström, Roxana Cremer, Paul Zieger, Ilona Riipinen, Annica M. L. Ekman, Konstantinos Eleftheriadis, and Radovan Krejci
Atmos. Chem. Phys., 24, 2059–2075, https://doi.org/10.5194/acp-24-2059-2024, https://doi.org/10.5194/acp-24-2059-2024, 2024
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Light-absorbing atmospheric particles (e.g. black carbon – BC) exert a warming effect on the Arctic climate. We show that the amount of particle light absorption decreased from 2002 to 2023. We conclude that in addition to reductions in emissions of BC, wet removal plays a role in the long-term reduction of BC in the Arctic, given the increase in surface precipitation experienced by air masses arriving at the site. The potential impact of biomass burning events is shown to have increased.
Natalie M. Mahowald, Longlei Li, Julius Vira, Marje Prank, Douglas S. Hamilton, Hitoshi Matsui, Ron L. Miller, Louis Lu, Ezgi Akyuz, Daphne Meidan, Peter Hess, Heikki Lihavainen, Christine Wiedinmyer, Jenny Hand, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Africa Barreto, Francisco Barraza, Silvia Becagli, Giulia Calzolai, Shankarararman Chellam, Ying Chen, Patrick Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Corinne Galy-Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Hannele Hakola, Roy M. Harrison, Chris Heyes, Barak Herut, Philip Hopke, Christoph Hüglin, Maria Kanakidou, Zsofia Kertesz, Zbiginiw Klimont, Katriina Kyllönen, Fabrice Lambert, Xiaohong Liu, Remi Losno, Franco Lucarelli, Willy Maenhaut, Beatrice Marticorena, Randall V. Martin, Nikolaos Mihalopoulos, Yasser Morera-Gomez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Patricia Smichowski, Daniela Varrica, Brenna Walsh, Crystal Weagle, and Xi Zhao
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-1, https://doi.org/10.5194/essd-2024-1, 2024
Preprint withdrawn
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Aerosol particles can interact with incoming solar radiation and outgoing long wave radiation, change cloud properties, affect photochemistry, impact surface air quality, and when deposited impact surface albedo of snow and ice, and modulate carbon dioxide uptake by the land and ocean. Here we present a new compilation of aerosol observations including composition, a methodology for comparing the datasets to model output, and show the implications of these results using one model.
Andreas Aktypis, Christos Kaltsonoudis, David Patoulias, Panayiotis Kalkavouras, Angeliki Matrali, Christina N. Vasilakopoulou, Evangelia Kostenidou, Kalliopi Florou, Nikos Kalivitis, Aikaterini Bougiatioti, Konstantinos Eleftheriadis, Stergios Vratolis, Maria I. Gini, Athanasios Kouras, Constantini Samara, Mihalis Lazaridis, Sofia-Eirini Chatoutsidou, Nikolaos Mihalopoulos, and Spyros N. Pandis
Atmos. Chem. Phys., 24, 65–84, https://doi.org/10.5194/acp-24-65-2024, https://doi.org/10.5194/acp-24-65-2024, 2024
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Extensive continuous particle number size distribution measurements took place during two summers (2020 and 2021) at 11 sites in Greece for the investigation of the frequency and the spatial extent of new particle formation. The frequency during summer varied from close to zero in southwestern Greece to more than 60 % in the northern, central, and eastern regions. The spatial variability can be explained by the proximity of the sites to coal-fired power plants and agricultural areas.
Jean-Philippe Putaud, Enrico Pisoni, Alexander Mangold, Christoph Hueglin, Jean Sciare, Michael Pikridas, Chrysanthos Savvides, Jakub Ondracek, Saliou Mbengue, Alfred Wiedensohler, Kay Weinhold, Maik Merkel, Laurent Poulain, Dominik van Pinxteren, Hartmut Herrmann, Andreas Massling, Claus Nordstroem, Andrés Alastuey, Cristina Reche, Noemí Pérez, Sonia Castillo, Mar Sorribas, Jose Antonio Adame, Tuukka Petaja, Katrianne Lehtipalo, Jarkko Niemi, Véronique Riffault, Joel F. de Brito, Augustin Colette, Olivier Favez, Jean-Eudes Petit, Valérie Gros, Maria I. Gini, Stergios Vratolis, Konstantinos Eleftheriadis, Evangelia Diapouli, Hugo Denier van der Gon, Karl Espen Yttri, and Wenche Aas
Atmos. Chem. Phys., 23, 10145–10161, https://doi.org/10.5194/acp-23-10145-2023, https://doi.org/10.5194/acp-23-10145-2023, 2023
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Many European people are still exposed to levels of air pollution that can affect their health. COVID-19 lockdowns in 2020 were used to assess the impact of the reduction in human mobility on air pollution across Europe by comparing measurement data with values that would be expected if no lockdown had occurred. We show that lockdown measures did not lead to consistent decreases in the concentrations of fine particulate matter suspended in the air, and we investigate why.
Alireza Moallemi, Robin L. Modini, Benjamin T. Brem, Barbara Bertozzi, Philippe Giaccari, and Martin Gysel-Beer
Atmos. Meas. Tech., 16, 3653–3678, https://doi.org/10.5194/amt-16-3653-2023, https://doi.org/10.5194/amt-16-3653-2023, 2023
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Polarimetric data, i.e., the angular and polarization dependence of light scattering by aerosols, contain ample information on optical and microphysical properties. Retrieval of these properties is a central approach in aerosol remote sensing. We present a description, calibration, validation, and a first application of a new benchtop polar nephelometer, which provides in situ polarimetric measurements of an aerosol. Such data facilitate agreement between retrieval results and independent data.
Stergios Vratolis, Evangelia Diapouli, Manousos I. Manousakas, Susana Marta Almeida, Ivan Beslic, Zsofia Kertesz, Lucyna Samek, and Konstantinos Eleftheriadis
Atmos. Chem. Phys., 23, 6941–6961, https://doi.org/10.5194/acp-23-6941-2023, https://doi.org/10.5194/acp-23-6941-2023, 2023
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Using a dataset from 16 European and Asian cities we develop a new method so as to identify and quantify the emission fluxes from each geographic grid cell for secondary sulfate and dust aerosol. The information provided by the new method allows the implementation of targeted mitigation measures. The new method could be applied to several other pollutants (e.g., black carbon).
Baseerat Romshoo, Mira Pöhlker, Alfred Wiedensohler, Sascha Pfeifer, Jorge Saturno, Andreas Nowak, Krzysztof Ciupek, Paul Quincey, Konstantina Vasilatou, Michaela N. Ess, Maria Gini, Konstantinos Eleftheriadis, Chris Robins, François Gaie-Levrel, and Thomas Müller
Atmos. Meas. Tech., 15, 6965–6989, https://doi.org/10.5194/amt-15-6965-2022, https://doi.org/10.5194/amt-15-6965-2022, 2022
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Black carbon (BC) is often assumed to be spherically shaped, causing uncertainties in its optical properties when modelled. This study investigates different modelling techniques for the optical properties of BC by comparing them to laboratory measurements. We provide experimental support for emphasizing the use of appropriate size representation (polydisperse size method) and morphological representation (aggregate morphology) for optical modelling and parameterization scheme development of BC.
Alireza Moallemi, Rob L. Modini, Tatyana Lapyonok, Anton Lopatin, David Fuertes, Oleg Dubovik, Philippe Giaccari, and Martin Gysel-Beer
Atmos. Meas. Tech., 15, 5619–5642, https://doi.org/10.5194/amt-15-5619-2022, https://doi.org/10.5194/amt-15-5619-2022, 2022
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Aerosol properties (size distributions, refractive indices) can be retrieved from in situ, angularly resolved light scattering measurements performed with polar nephelometers. We apply an established framework to assess the aerosol property retrieval potential for different instrument configurations, target applications, and assumed prior knowledge. We also demonstrate how a reductive greedy algorithm can be used to determine the optimal placements of the angular sensors in a polar nephelometer.
Olga Zografou, Maria Gini, Manousos I. Manousakas, Gang Chen, Athina C. Kalogridis, Evangelia Diapouli, Athina Pappa, and Konstantinos Eleftheriadis
Atmos. Meas. Tech., 15, 4675–4692, https://doi.org/10.5194/amt-15-4675-2022, https://doi.org/10.5194/amt-15-4675-2022, 2022
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A yearlong ToF-ACSM dataset was used to characterize ambient aerosols over a suburban Athenian site, and innovative software for source apportionment was implemented in order to distinguish the sources of the total non-refractory species of PM1. A comparison between the methodology of combined organic and inorganic PMF analysis and the conventional organic PMF took place.
Christian Tatzelt, Silvia Henning, André Welti, Andrea Baccarini, Markus Hartmann, Martin Gysel-Beer, Manuela van Pinxteren, Robin L. Modini, Julia Schmale, and Frank Stratmann
Atmos. Chem. Phys., 22, 9721–9745, https://doi.org/10.5194/acp-22-9721-2022, https://doi.org/10.5194/acp-22-9721-2022, 2022
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We present the abundance and origin of cloud-relevant aerosol particles in the preindustral-like conditions of the Southern Ocean (SO) during austral summer. Cloud condensation nuclei (CCN) and ice-nucleating particles (INP) were measured during a circum-Antarctic scientific cruise with in situ instrumentation and offline filter measurements, respectively. Transport processes were found to play an equally important role as local sources for both the CCN and INP population of the SO.
Ivo Beck, Hélène Angot, Andrea Baccarini, Lubna Dada, Lauriane Quéléver, Tuija Jokinen, Tiia Laurila, Markus Lampimäki, Nicolas Bukowiecki, Matthew Boyer, Xianda Gong, Martin Gysel-Beer, Tuukka Petäjä, Jian Wang, and Julia Schmale
Atmos. Meas. Tech., 15, 4195–4224, https://doi.org/10.5194/amt-15-4195-2022, https://doi.org/10.5194/amt-15-4195-2022, 2022
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We present the pollution detection algorithm (PDA), a new method to identify local primary pollution in remote atmospheric aerosol and trace gas time series. The PDA identifies periods of contaminated data and relies only on the target dataset itself; i.e., it is independent of ancillary data such as meteorological variables. The parameters of all pollution identification steps are adjustable so that the PDA can be tuned to different locations and situations. It is available as open-access code.
Cyril Brunner, Benjamin T. Brem, Martine Collaud Coen, Franz Conen, Martin Steinbacher, Martin Gysel-Beer, and Zamin A. Kanji
Atmos. Chem. Phys., 22, 7557–7573, https://doi.org/10.5194/acp-22-7557-2022, https://doi.org/10.5194/acp-22-7557-2022, 2022
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Microscopic particles called ice-nucleating particles (INPs) are essential for ice crystals to form in clouds. INPs are a tiny proportion of atmospheric aerosol, and their abundance is poorly constrained. We study how the concentration of INPs changes diurnally and seasonally at a mountaintop station in central Europe. Unsurprisingly, a diurnal cycle is only found when considering air masses that have had lower-altitude ground contact. The highest INP concentrations occur in spring.
Olga B. Popovicheva, Nikolaos Evangeliou, Vasilii O. Kobelev, Marina A. Chichaeva, Konstantinos Eleftheriadis, Asta Gregorič, and Nikolay S. Kasimov
Atmos. Chem. Phys., 22, 5983–6000, https://doi.org/10.5194/acp-22-5983-2022, https://doi.org/10.5194/acp-22-5983-2022, 2022
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Measurements of black carbon (BC) combined with atmospheric transport modeling reveal that gas flaring from oil and gas extraction in Kazakhstan, Volga-Ural, Komi, Nenets and western Siberia contributes the largest share of surface BC in the Russian Arctic dominating over domestic, industrial and traffic sectors. Pollution episodes show an increasing trend in concentration levels and frequency as the station is in the Siberian gateway of the highest anthropogenic pollution to the Russian Arctic.
Cynthia H. Whaley, Rashed Mahmood, Knut von Salzen, Barbara Winter, Sabine Eckhardt, Stephen Arnold, Stephen Beagley, Silvia Becagli, Rong-You Chien, Jesper Christensen, Sujay Manish Damani, Xinyi Dong, Konstantinos Eleftheriadis, Nikolaos Evangeliou, Gregory Faluvegi, Mark Flanner, Joshua S. Fu, Michael Gauss, Fabio Giardi, Wanmin Gong, Jens Liengaard Hjorth, Lin Huang, Ulas Im, Yugo Kanaya, Srinath Krishnan, Zbigniew Klimont, Thomas Kühn, Joakim Langner, Kathy S. Law, Louis Marelle, Andreas Massling, Dirk Olivié, Tatsuo Onishi, Naga Oshima, Yiran Peng, David A. Plummer, Olga Popovicheva, Luca Pozzoli, Jean-Christophe Raut, Maria Sand, Laura N. Saunders, Julia Schmale, Sangeeta Sharma, Ragnhild Bieltvedt Skeie, Henrik Skov, Fumikazu Taketani, Manu A. Thomas, Rita Traversi, Kostas Tsigaridis, Svetlana Tsyro, Steven Turnock, Vito Vitale, Kaley A. Walker, Minqi Wang, Duncan Watson-Parris, and Tahya Weiss-Gibbons
Atmos. Chem. Phys., 22, 5775–5828, https://doi.org/10.5194/acp-22-5775-2022, https://doi.org/10.5194/acp-22-5775-2022, 2022
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Air pollutants, like ozone and soot, play a role in both global warming and air quality. Atmospheric models are often used to provide information to policy makers about current and future conditions under different emissions scenarios. In order to have confidence in those simulations, in this study we compare simulated air pollution from 18 state-of-the-art atmospheric models to measured air pollution in order to assess how well the models perform.
Hanna K. Lappalainen, Tuukka Petäjä, Timo Vihma, Jouni Räisänen, Alexander Baklanov, Sergey Chalov, Igor Esau, Ekaterina Ezhova, Matti Leppäranta, Dmitry Pozdnyakov, Jukka Pumpanen, Meinrat O. Andreae, Mikhail Arshinov, Eija Asmi, Jianhui Bai, Igor Bashmachnikov, Boris Belan, Federico Bianchi, Boris Biskaborn, Michael Boy, Jaana Bäck, Bin Cheng, Natalia Chubarova, Jonathan Duplissy, Egor Dyukarev, Konstantinos Eleftheriadis, Martin Forsius, Martin Heimann, Sirkku Juhola, Vladimir Konovalov, Igor Konovalov, Pavel Konstantinov, Kajar Köster, Elena Lapshina, Anna Lintunen, Alexander Mahura, Risto Makkonen, Svetlana Malkhazova, Ivan Mammarella, Stefano Mammola, Stephany Buenrostro Mazon, Outi Meinander, Eugene Mikhailov, Victoria Miles, Stanislav Myslenkov, Dmitry Orlov, Jean-Daniel Paris, Roberta Pirazzini, Olga Popovicheva, Jouni Pulliainen, Kimmo Rautiainen, Torsten Sachs, Vladimir Shevchenko, Andrey Skorokhod, Andreas Stohl, Elli Suhonen, Erik S. Thomson, Marina Tsidilina, Veli-Pekka Tynkkynen, Petteri Uotila, Aki Virkkula, Nadezhda Voropay, Tobias Wolf, Sayaka Yasunaka, Jiahua Zhang, Yubao Qiu, Aijun Ding, Huadong Guo, Valery Bondur, Nikolay Kasimov, Sergej Zilitinkevich, Veli-Matti Kerminen, and Markku Kulmala
Atmos. Chem. Phys., 22, 4413–4469, https://doi.org/10.5194/acp-22-4413-2022, https://doi.org/10.5194/acp-22-4413-2022, 2022
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We summarize results during the last 5 years in the northern Eurasian region, especially from Russia, and introduce recent observations of the air quality in the urban environments in China. Although the scientific knowledge in these regions has increased, there are still gaps in our understanding of large-scale climate–Earth surface interactions and feedbacks. This arises from limitations in research infrastructures and integrative data analyses, hindering a comprehensive system analysis.
Stephen M. Platt, Øystein Hov, Torunn Berg, Knut Breivik, Sabine Eckhardt, Konstantinos Eleftheriadis, Nikolaos Evangeliou, Markus Fiebig, Rebecca Fisher, Georg Hansen, Hans-Christen Hansson, Jost Heintzenberg, Ove Hermansen, Dominic Heslin-Rees, Kim Holmén, Stephen Hudson, Roland Kallenborn, Radovan Krejci, Terje Krognes, Steinar Larssen, David Lowry, Cathrine Lund Myhre, Chris Lunder, Euan Nisbet, Pernilla B. Nizzetto, Ki-Tae Park, Christina A. Pedersen, Katrine Aspmo Pfaffhuber, Thomas Röckmann, Norbert Schmidbauer, Sverre Solberg, Andreas Stohl, Johan Ström, Tove Svendby, Peter Tunved, Kjersti Tørnkvist, Carina van der Veen, Stergios Vratolis, Young Jun Yoon, Karl Espen Yttri, Paul Zieger, Wenche Aas, and Kjetil Tørseth
Atmos. Chem. Phys., 22, 3321–3369, https://doi.org/10.5194/acp-22-3321-2022, https://doi.org/10.5194/acp-22-3321-2022, 2022
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Here we detail the history of the Zeppelin Observatory, a unique global background site and one of only a few in the high Arctic. We present long-term time series of up to 30 years of atmospheric components and atmospheric transport phenomena. Many of these time series are important to our understanding of Arctic and global atmospheric composition change. Finally, we discuss the future of the Zeppelin Observatory and emerging areas of future research on the Arctic atmosphere.
Julia Schmale, Sangeeta Sharma, Stefano Decesari, Jakob Pernov, Andreas Massling, Hans-Christen Hansson, Knut von Salzen, Henrik Skov, Elisabeth Andrews, Patricia K. Quinn, Lucia M. Upchurch, Konstantinos Eleftheriadis, Rita Traversi, Stefania Gilardoni, Mauro Mazzola, James Laing, and Philip Hopke
Atmos. Chem. Phys., 22, 3067–3096, https://doi.org/10.5194/acp-22-3067-2022, https://doi.org/10.5194/acp-22-3067-2022, 2022
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Long-term data sets of Arctic aerosol properties from 10 stations across the Arctic provide evidence that anthropogenic influence on the Arctic atmospheric chemical composition has declined in winter, a season which is typically dominated by mid-latitude emissions. The number of significant trends in summer is smaller than in winter, and overall the pattern is ambiguous with some significant positive and negative trends. This reflects the mixed influence of natural and anthropogenic emissions.
Dalrin Ampritta Amaladhasan, Claudia Heyn, Christopher R. Hoyle, Imad El Haddad, Miriam Elser, Simone M. Pieber, Jay G. Slowik, Antonio Amorim, Jonathan Duplissy, Sebastian Ehrhart, Vladimir Makhmutov, Ugo Molteni, Matti Rissanen, Yuri Stozhkov, Robert Wagner, Armin Hansel, Jasper Kirkby, Neil M. Donahue, Rainer Volkamer, Urs Baltensperger, Martin Gysel-Beer, and Andreas Zuend
Atmos. Chem. Phys., 22, 215–244, https://doi.org/10.5194/acp-22-215-2022, https://doi.org/10.5194/acp-22-215-2022, 2022
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We use a combination of models for gas-phase chemical reactions and equilibrium gas–particle partitioning of isoprene-derived secondary organic aerosols (SOAs) informed by dark ozonolysis experiments conducted in the CLOUD chamber. Our predictions cover high to low relative humidities (RHs) and quantify how SOA mass yields are enhanced at high RH as well as the impact of inorganic seeds of distinct hygroscopicities and acidities on the coupled partitioning of water and semi-volatile organics.
Cyril Brunner, Benjamin T. Brem, Martine Collaud Coen, Franz Conen, Maxime Hervo, Stephan Henne, Martin Steinbacher, Martin Gysel-Beer, and Zamin A. Kanji
Atmos. Chem. Phys., 21, 18029–18053, https://doi.org/10.5194/acp-21-18029-2021, https://doi.org/10.5194/acp-21-18029-2021, 2021
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Special microscopic particles called ice-nucleating particles (INPs) are essential for ice crystals to form in the atmosphere. INPs are sparse and their atmospheric concentration and properties are not well understood. Mineral dust particles make up a significant fraction of INPs but how much remains unknown. Here, we address this knowledge gap by studying periods when mineral particles are present in large quantities at a mountaintop station in central Europe.
Gian Lieberherr, Kevin Auderset, Bertrand Calpini, Bernard Clot, Benoît Crouzy, Martin Gysel-Beer, Thomas Konzelmann, José Manzano, Andrea Mihajlovic, Alireza Moallemi, David O'Connor, Branko Sikoparija, Eric Sauvageat, Fiona Tummon, and Konstantina Vasilatou
Atmos. Meas. Tech., 14, 7693–7706, https://doi.org/10.5194/amt-14-7693-2021, https://doi.org/10.5194/amt-14-7693-2021, 2021
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Today there is no standard procedure to validate bioaerosol and pollen monitors. Three instruments were tested, focusing on detecting particles of different sizes. Only one instrument was able to detect the smallest particles (0.5 µm Ø), whereas the others performed best at the largest tested particles (10 µm Ø). These results are the first step towards a standardised validation procedure. The need for a reference counting method for larger particles (pollen grains: 10–200 µm Ø) was emphasised.
Clémence Rose, Martine Collaud Coen, Elisabeth Andrews, Yong Lin, Isaline Bossert, Cathrine Lund Myhre, Thomas Tuch, Alfred Wiedensohler, Markus Fiebig, Pasi Aalto, Andrés Alastuey, Elisabeth Alonso-Blanco, Marcos Andrade, Begoña Artíñano, Todor Arsov, Urs Baltensperger, Susanne Bastian, Olaf Bath, Johan Paul Beukes, Benjamin T. Brem, Nicolas Bukowiecki, Juan Andrés Casquero-Vera, Sébastien Conil, Konstantinos Eleftheriadis, Olivier Favez, Harald Flentje, Maria I. Gini, Francisco Javier Gómez-Moreno, Martin Gysel-Beer, Anna Gannet Hallar, Ivo Kalapov, Nikos Kalivitis, Anne Kasper-Giebl, Melita Keywood, Jeong Eun Kim, Sang-Woo Kim, Adam Kristensson, Markku Kulmala, Heikki Lihavainen, Neng-Huei Lin, Hassan Lyamani, Angela Marinoni, Sebastiao Martins Dos Santos, Olga L. Mayol-Bracero, Frank Meinhardt, Maik Merkel, Jean-Marc Metzger, Nikolaos Mihalopoulos, Jakub Ondracek, Marco Pandolfi, Noemi Pérez, Tuukka Petäjä, Jean-Eudes Petit, David Picard, Jean-Marc Pichon, Veronique Pont, Jean-Philippe Putaud, Fabienne Reisen, Karine Sellegri, Sangeeta Sharma, Gerhard Schauer, Patrick Sheridan, James Patrick Sherman, Andreas Schwerin, Ralf Sohmer, Mar Sorribas, Junying Sun, Pierre Tulet, Ville Vakkari, Pieter Gideon van Zyl, Fernando Velarde, Paolo Villani, Stergios Vratolis, Zdenek Wagner, Sheng-Hsiang Wang, Kay Weinhold, Rolf Weller, Margarita Yela, Vladimir Zdimal, and Paolo Laj
Atmos. Chem. Phys., 21, 17185–17223, https://doi.org/10.5194/acp-21-17185-2021, https://doi.org/10.5194/acp-21-17185-2021, 2021
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Aerosol particles are a complex component of the atmospheric system the effects of which are among the most uncertain in climate change projections. Using data collected at 62 stations, this study provides the most up-to-date picture of the spatial distribution of particle number concentration and size distribution worldwide, with the aim of contributing to better representation of aerosols and their interactions with clouds in models and, therefore, better evaluation of their impact on climate.
Larissa Lacher, Hans-Christian Clemen, Xiaoli Shen, Stephan Mertes, Martin Gysel-Beer, Alireza Moallemi, Martin Steinbacher, Stephan Henne, Harald Saathoff, Ottmar Möhler, Kristina Höhler, Thea Schiebel, Daniel Weber, Jann Schrod, Johannes Schneider, and Zamin A. Kanji
Atmos. Chem. Phys., 21, 16925–16953, https://doi.org/10.5194/acp-21-16925-2021, https://doi.org/10.5194/acp-21-16925-2021, 2021
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We investigate ice-nucleating particle properties at Jungfraujoch during the 2017 joint INUIT/CLACE field campaign, to improve the knowledge about those rare particles in a cloud-relevant environment. By quantifying ice-nucleating particles in parallel to single-particle mass spectrometry measurements, we find that mineral dust and aged sea spray particles are potential candidates for ice-nucleating particles. Our findings are supported by ice residual analysis and source region modeling.
Sebastian Düsing, Albert Ansmann, Holger Baars, Joel C. Corbin, Cyrielle Denjean, Martin Gysel-Beer, Thomas Müller, Laurent Poulain, Holger Siebert, Gerald Spindler, Thomas Tuch, Birgit Wehner, and Alfred Wiedensohler
Atmos. Chem. Phys., 21, 16745–16773, https://doi.org/10.5194/acp-21-16745-2021, https://doi.org/10.5194/acp-21-16745-2021, 2021
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The work deals with optical properties of aerosol particles in dried and atmospheric states. Based on two measurement campaigns in the rural background of central Europe, different measurement approaches were compared with each other, such as modeling based on Mie theory and direct in situ or remote sensing measurements. Among others, it was shown that the aerosol extinction-to-backscatter ratio is relative humidity dependent, and refinement with respect to the model input parameters is needed.
Sho Ohata, Tatsuhiro Mori, Yutaka Kondo, Sangeeta Sharma, Antti Hyvärinen, Elisabeth Andrews, Peter Tunved, Eija Asmi, John Backman, Henri Servomaa, Daniel Veber, Konstantinos Eleftheriadis, Stergios Vratolis, Radovan Krejci, Paul Zieger, Makoto Koike, Yugo Kanaya, Atsushi Yoshida, Nobuhiro Moteki, Yongjing Zhao, Yutaka Tobo, Junji Matsushita, and Naga Oshima
Atmos. Meas. Tech., 14, 6723–6748, https://doi.org/10.5194/amt-14-6723-2021, https://doi.org/10.5194/amt-14-6723-2021, 2021
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Reliable values of mass absorption cross sections (MACs) of black carbon (BC) are required to determine mass concentrations of BC at Arctic sites using different types of filter-based absorption photometers. We successfully estimated MAC values for these instruments through comparison with independent measurements of BC by a continuous soot monitoring system called COSMOS. These MAC values are consistent with each other and applicable to study spatial and temporal variation in BC in the Arctic.
Vaios Moschos, Martin Gysel-Beer, Robin L. Modini, Joel C. Corbin, Dario Massabò, Camilla Costa, Silvia G. Danelli, Athanasia Vlachou, Kaspar R. Daellenbach, Sönke Szidat, Paolo Prati, André S. H. Prévôt, Urs Baltensperger, and Imad El Haddad
Atmos. Chem. Phys., 21, 12809–12833, https://doi.org/10.5194/acp-21-12809-2021, https://doi.org/10.5194/acp-21-12809-2021, 2021
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This study provides a holistic approach to studying the spectrally resolved light absorption by atmospheric brown carbon (BrC) and black carbon using long time series of daily samples from filter-based measurements. The obtained results provide (1) a better understanding of the aerosol absorption profile and its dependence on BrC and on lensing from less absorbing coatings and (2) an estimation of the most important absorbers at typical European locations.
Dimitrios Bousiotis, Francis D. Pope, David C. S. Beddows, Manuel Dall'Osto, Andreas Massling, Jakob Klenø Nøjgaard, Claus Nordstrøm, Jarkko V. Niemi, Harri Portin, Tuukka Petäjä, Noemi Perez, Andrés Alastuey, Xavier Querol, Giorgos Kouvarakis, Nikos Mihalopoulos, Stergios Vratolis, Konstantinos Eleftheriadis, Alfred Wiedensohler, Kay Weinhold, Maik Merkel, Thomas Tuch, and Roy M. Harrison
Atmos. Chem. Phys., 21, 11905–11925, https://doi.org/10.5194/acp-21-11905-2021, https://doi.org/10.5194/acp-21-11905-2021, 2021
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Formation of new particles is a key process in the atmosphere. New particle formation events arising from nucleation of gaseous precursors have been analysed in extensive datasets from 13 sites in five European countries in terms of frequency, nucleation rate, and particle growth rate, with several common features and many differences identified. Although nucleation frequencies are lower at roadside sites, nucleation rates and particle growth rates are typically higher.
Eija Asmi, John Backman, Henri Servomaa, Aki Virkkula, Maria I. Gini, Konstantinos Eleftheriadis, Thomas Müller, Sho Ohata, Yutaka Kondo, and Antti Hyvärinen
Atmos. Meas. Tech., 14, 5397–5413, https://doi.org/10.5194/amt-14-5397-2021, https://doi.org/10.5194/amt-14-5397-2021, 2021
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Absorbing aerosols are warming the planet and accurate measurements of their concentrations in pristine environments are needed. We applied eight different absorbing-aerosol measurement methods in a field campaign at the Arctic Pallas station. The filter-based techniques were found to be the most sensitive to detect the minuscule amounts of black carbon present, showing a 40 % agreement between them. Our results help to reduce uncertainties in absorbing aerosol measurements.
Cited articles
Achtert, P., Birmili, W., Nowak, A., Wehner, B., Wiedensohler, A., Takegawa,
N., Kondo, Y., Miyazaki, Y., Hu, M., and Zhu, T.: Hygroscopic growth of
tropospheric particle number size distributions over the North China Plain,
J. Geophys. Res., 114, D00G07, https://doi.org/10.1029/2008JD010921, 2009.
Bernardoni, V., Elser, M., Valli, G., Valentini, S., Bigi, A., Fermo, P.,
Piazzalunga, A., and Vecchi, R.: Size-segregated aerosol in a hot-spot pollution
urban area: Chemical composition and three-way source apportionment,
Environ. Pollut., 231, 601–61, 2017.
Bezantakos, S., Barmpounis, K., Giamarelou, M., Bossioli, E., Tombrou, M.,
Mihalopoulos, N., Eleftheriadis, K., Kalogiros, J., D. Allan, J., Bacak, A.,
Percival, C. J., Coe, H., and Biskos, G.: Chemical composition and
hygroscopic properties of aerosol particles over the Aegean Sea, Atmos.
Chem. Phys., 13, 11595–11608, https://doi.org/10.5194/acp-13-11595-2013,
2013.
Bougiatioti, A., Bezantakos, S., Stavroulas, I., Kalivitis, N., Kokkalis,
P., Biskos, G., Mihalopoulos, N., Papayannis, A., and Nenes, A.:
Biomass-burning impact on CCN number, hygroscopicity and cloud formation
during summertime in the eastern Mediterranean, Atmos. Chem. Phys., 16,
7389–7409, https://doi.org/10.5194/acp-16-7389-2016, 2016.
Bourcier, L., Sellegri, K., Chausse, P., Pichon, J. M., and Laj, P.: Seasonal variation of
water-soluble inorganic components in aerosol size-segregated at the puy de
Dôme station (1,465 m a.s.l.), France, J. Atmos. Chem., 69,
47–66, https://doi.org/10.1007/s10874-012-9229-2, 2012.
Bousiotis, D., Pope, F. D., Beddows, D. C. S., Dall'Osto, M., Massling, A., Nøjgaard, J. K., Nordstrøm, C., Niemi, J. V., Portin, H., Petäjä, T., Perez, N., Alastuey, A., Querol, X., Kouvarakis, G., Mihalopoulos, N., Vratolis, S., Eleftheriadis, K., Wiedensohler, A., Weinhold, K., Merkel, M., Tuch, T., and Harrison, R. M.: A phenomenology of new particle formation (NPF) at 13 European sites, Atmos. Chem. Phys., 21, 11905–11925, https://doi.org/10.5194/acp-21-11905-2021, 2021.
Brines, M., Dall'Osto, M., Beddows, D. C. S., Harrison, R. M., and Querol, X.: Simplifying aerosol size distributions modes simultaneously detected at four monitoring sites during SAPUSS, Atmos. Chem. Phys., 14, 2973–2986, https://doi.org/10.5194/acp-14-2973-2014, 2014.
Cubison, M. J., Alfarra, M. R., Allan, J., Bower, K. N., Coe, H., McFiggans,
G. B., Whitehead, J. D., Williams, P. I., Zhang, Q., Jimenez, J. L.,
Hopkins, J., and Lee, J.: The characterization of pollution aerosol in a
changing photochemical environment, Atmos. Chem. Phys., 6, 5573–5588,
https://doi.org/10.5194/acp-6-5573-2006, 2006.
Carslaw, D. C. and Ropkins, K.: openair – An R package for air quality data
analysis, Environ. Model. Softw., 27/28, 52–61,
https://doi.org/10.1016/j.envsoft.2011.09.008, 2012
Cocker III, D. R., Whitlock, N. E., Flagan, R. C., and
Seinfeld, J. H.: Hygroscopic Properties of Pasadena, California Aerosol, Aerosol
Sci. Technol., 35, 637–647, https://doi.org/10.1080/02786820120653, 2001.
Diapouli, E., Kalogridis, A.-C., Markantonaki, C., Vratolis, S., Fetfatzis,
P., Colombi, C., and Eleftheriadis, K.: Annual Variability of Black Carbon
Concentrations Originating from Biomass and Fossil Fuel Combustion for the
Suburban Aerosol in Athens, Greece, Atmosphere, 8, 234,
https://doi.org/10.3390/atmos8120234, 2017.
Eleftheriadis, K., Ochsenkuhn, K. M., Lymperopoulou, T., Karanasiou, A., Razos, P., and Ochsenkuhn-Petropoulou, M.: Influence of local and regional sources on the observed spatial and temporal variability of size resolved atmospheric aerosol mass concentrations and water-soluble species in the Athens metropolitan area, Atmos. Environ., 97, 252–261, https://doi.org/10.1016/j.atmosenv.2014.08.013, 2014.
Eleftheriadis, K., Gini, M. I., Diapouli, Vratolis, S., Vasilatou, V.,
Fetfatzis, P., and Manousakkas, I. M.: Aerosol microphysics and chemistry reveal
the COVID19 lockdown impact on urban air quality, Sci. Rep., 11,
14477, https://doi.org/10.1038/s41598-021-93650-6, 2021.
Enroth, J., Mikkilä, J., Németh, Z., Kulmala, M., and Salma, I.:
Wintertime hygroscopicity and volatility of ambient urban aerosol particles,
Atmos. Chem. Phys., 18, 4533–4548,
https://doi.org/10.5194/acp-18-4533-2018, 2018.
Fors, E. O., Swietlicki, E., Svenningsson, B., Kristensson, A., Frank, G.
P., and Sporre, M.: Hygroscopic properties of the ambient aerosol in
southern Sweden – a two year study, Atmos. Chem. Phys., 11, 8343–8361,
https://doi.org/10.5194/acp-11-8343-2011, 2011.
Gunthe, S. S., King, S. M., Rose, D., Chen, Q., Roldin, P., Farmer, D. K.,
Jimenez, J. L., Artaxo, P., Andreae, M. O., Martin, S. T., and Pöschl,
U.: Cloud condensation nuclei in pristine tropical rainforest air of
Amazonia: size-resolved measurements and modeling of atmospheric aerosol
composition and CCN activity, Atmos. Chem. Phys., 9, 7551–7575,
https://doi.org/10.5194/acp-9-7551-2009, 2009.
Gysel, M., Weingartner, E., and Baltensperger, U.: Hygroscopicity of aerosol particles
at low temperatures, 2. Theoretical and experimental hygroscopic properties
of laboratory generated aerosols, Environ. Sci. Technol.,
1, 63–68, https://doi.org/10.1021/es010055g, 2002.
Gysel, M., Crosier, J., Topping, D. O., Whitehead, J. D., Bower, K. N.,
Cubison, M. J., Williams, P. I., Flynn, M. J., McFiggans, G. B., and Coe,
H.: Closure study between chemical composition and hygroscopic growth of
aerosol particles during TORCH2, Atmos. Chem. Phys., 7, 6131–6144,
https://doi.org/10.5194/acp-7-6131-2007, 2007.
Gysel, M., McFiggans, G. B., and Coe, H.: Inversion of tandem differential
mobility analyser (TDMA) measurements, J. Aerosol Sci.,
40, 134–151,
https://doi.org/10.1016/j.jaerosci.2008.07.013, 2009.
Haywood, J. and Boucher, O.: Estimates of the direct and indirect radiative
forcing due to tropospheric aerosols: A review, Rev. Geophys., 38, 513–543, https://doi.org/10.1029/1999RG000078, 2000.
Hegg, D. A., Covert, D. S., Jonsson, H., and Covert, P. A.: An
Instrument for Measuring Size-Resolved Aerosol Hygroscopicity at both Sub-
and Super-MicronSizes, Aerosol Sci. Technol., 41, 873–883,
https://doi.org/10.1080/02786820701506955, 2007.
Hussein, T., Hämeri, K., Aalto, P., Paatero, P., and Kulmala, M.: Modal structure
and spatial–temporal variations of urban and suburban aerosols in
Helsinki – Finland, Atmos. Environ., 39,
1655–1668, https://doi.org/10.1016/j.atmosenv.2004.11.031,
2005.
Hussein, T., Mølgaard, B., Hannuniemi, H., Martikainen, J., Järvi, L.,
Wegner, T., Ripamonti, G., Weber, S., Vesala, T., and Hämeri, K.:
Fingerprints of the urban particle number size distribution in helsinki,
Finland: local versus regional characteristics, Boreal Environ. Res., 19, 1–20,
2014.
Holmgren, H., Sellegri, K., Hervo, M., Rose, C., Freney, E., Villani, P.,
and Laj, P.: Hygroscopic properties and mixing state of aerosol measured at
the high-altitude site Puy de Dôme (1465 m a.s.l.), France, Atmos. Chem.
Phys., 14, 9537–9554, https://doi.org/10.5194/acp-14-9537-2014, 2014.
IPCC: Climate Change 2013: The Physical Science Basis, Contribution oWorking Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University
Press, Cambridge, UK and Neew York, NY, USA, ISBN 978-92-9169-138-8, 2013.
Jurányi, Z., Tritscher, T., Gysel, M., Laborde, M., Gomes, L., Roberts,
G., Baltensperger, U., and Weingartner, E.: Hygroscopic mixing state of
urban aerosol derived from size-resolved cloud condensation nuclei
measurements during the MEGAPOLI campaign in Paris, Atmos. Chem. Phys., 13,
6431–6446, https://doi.org/10.5194/acp-13-6431-2013, 2013.
Kalivitis, N., Kerminen, V.-M., Kouvarakis, G., Stavroulas, I., Bougiatioti,
A., Nenes, A., Manninen, H. E., Petäjä, T., Kulmala, M., and
Mihalopoulos, N.: Atmospheric new particle formation as a source of CCN in
the eastern Mediterranean marine boundary layer, Atmos. Chem. Phys., 15,
9203–9215, https://doi.org/10.5194/acp-15-9203-2015, 2015.
Kalogridis, A. C., Vratolis, S., Liakakou, E., Gerasopoulos, E.,
Mihalopoulos, N., and Eleftheriadis, K.: Assessment of wood burning versus
fossil fuel contribution to wintertime black carbon and carbon monoxide
concentrations in Athens, Greece, Atmos. Chem. Phys., 18, 10219–10236,
https://doi.org/10.5194/acp-18-10219-2018, 2018.
Kammermann, L., Gysel, M., Weingartner, E., and Baltensperger, U.: 13-month
climatology of the aerosol hygroscopicity at the free tropospheric site
Jungfraujoch (3580 m a.s.l.), Atmos. Chem. Phys., 10, 10717–10732,
https://doi.org/10.5194/acp-10-10717-2010, 2010.
Kanakidou, M., Seinfeld, J. H., Pandis, S. N., Barnes, I., Dentener, F. J.,
Facchini, M. C., Van Dingenen, R., Ervens, B., Nenes, A., Nielsen, C. J.,
Swietlicki, E., Putaud, J. P., Balkanski, Y., Fuzzi, S., Horth, J.,
Moortgat, G. K., Winterhalter, R., Myhre, C. E. L., Tsigaridis, K., Vignati,
E., Stephanou, E. G., and Wilson, J.: Organic aerosol and global climate
modelling: a review, Atmos. Chem. Phys., 5, 1053–1123,
https://doi.org/10.5194/acp-5-1053-2005, 2005.
Kaufman, Y., Tanré, D., and Boucher, O.: A satellite view of aerosols in
the climate system, Nature, 419, 215–223,
https://doi.org/10.1038/nature01091, 2002.
Kim, N., Yum, S. S., Park, M., Park, J. S., Shin, H. J., and Ahn, J. Y.:
Hygroscopicity of urban aerosols and its link to size-resolved chemical
composition during spring and summer in Seoul, Korea, Atmos. Chem. Phys.,
20, 11245–11262, https://doi.org/10.5194/acp-20-11245-2020, 2020.
Koehler, K. A., Kreidenweis, S. M., DeMott, P. J., Prenni, A. J., Carrico,
C. M., Ervens, B., and Feingold, G.: Water activity and activation diameters
from hygroscopicity data – Part II: Application to organic species, Atmos.
Chem. Phys., 6, 795–809, https://doi.org/10.5194/acp-6-795-2006, 2006.
Köhler, H.: The nucleous in the growth of hygroscopic droplets, Trans.
Faraday Soc., 32, 1152–1161, 1936.
Kostenidou, E., Florou, K., Kaltsonoudis, C., Tsiflikiotou, M., Vratolis,
S., Eleftheriadis, K., and Pandis, S. N.: Sources and chemical
characterization of organic aerosol during the summer in the eastern
Mediterranean, Atmos. Chem. Phys., 15, 11355–11371,
https://doi.org/10.5194/acp-15-11355-2015, 2015.
Kotchenruther, R. A. and Hobbs, P. V.: Humidification factors of aerosols
from biomass burning in Brazil, J. Geophys. Res.-Atmos., 103,
32081–32089, 1998.
Li, Z., W. K.-M. Lau, W. K.-M., Ramanathan, V., Wu, G., Ding, Y., Manoj, M. G., Liu, J., Qian, Y., Li, J., Zhou, T., Fan, J., Rosenfeld, D., Ming, Y., Wang, Y., Huang, J., Wang, B., Xu, X., Lee, S. S., Cribb, M., Zhang, F., Yang, X., Zhao, C., Takemura, T., Wang, K., Xia, X., Yin, Y., Zhang, H., Guo, J., Zhai, P. M., Sugimoto, N., Babu, S. S., and Brasseur, G. P.: Aerosol
and monsoon climate interactions over Asia, Rev. Geophys., 54, 866–929,
https://doi.org/10.1002/2015RG000500, 2016.
Massling, A., Leinert, S., Wiedensohler, A., and Covert, D.: Hygroscopic
growth of sub-micrometer and one-micrometer aerosol particles measured
during ACE-Asia, Atmos. Chem. Phys., 7, 3249–3259,
https://doi.org/10.5194/acp-7-3249-2007, 2007.
McFiggans, G., Artaxo, P., Baltensperger, U., Coe, H., Facchini, M. C.,
Feingold, G., Fuzzi, S., Gysel, M., Laaksonen, A., Lohmann, U., Mentel, T.
F., Murphy, D. M., O'Dowd, C. D., Snider, J. R., and Weingartner, E.: The
effect of physical and chemical aerosol properties on warm cloud droplet
activation, Atmos. Chem. Phys., 6, 2593–2649,
https://doi.org/10.5194/acp-6-2593-2006, 2006.
Mendes, L., Gini, M. I., Biskos, G., Colbeck, I., and Eleftheriadis, K.: Airborne ultrafine particles in a naturally ventilated metro station: Dominant sources and mixing state determined by particle size distribution and volatility measurements, Environ. Pollut., 239, 82–94, https://doi.org/10.1016/j.envpol.2018.03.067, 2018.
Motos, G., Schmale, J., Corbin, J. C., Zanatta, M., Baltensperger, U., and
Gysel-Beer, M.: Droplet activation behaviour of atmospheric black carbon
particles in fog as a function of their size and mixing state, Atmos. Chem.
Phys., 19, 2183–2207, https://doi.org/10.5194/acp-19-2183-2019, 2019.
Paramonov, M., Kerminen, V.-M., Gysel, M., Aalto, P. P., Andreae, M. O.,
Asmi, E., Baltensperger, U., Bougiatioti, A., Brus, D., Frank, G. P., Good,
N., Gunthe, S. S., Hao, L., Irwin, M., Jaatinen, A., Jurányi, Z., King,
S. M., Kortelainen, A., Kristensson, A., Lihavainen, H., Kulmala, M.,
Lohmann, U., Martin, S. T., McFiggans, G., Mihalopoulos, N., Nenes, A.,
O'Dowd, C. D., Ovadnevaite, J., Petäjä, T., Pöschl, U., Roberts,
G. C., Rose, D., Svenningsson, B., Swietlicki, E., Weingartner, E.,
Whitehead, J., Wiedensohler, A., Wittbom, C., and Sierau, B.: A synthesis of
cloud condensation nuclei counter (CCNC) measurements within the EUCAARI
network, Atmos. Chem. Phys., 15, 12211–12229,
https://doi.org/10.5194/acp-15-12211-2015, 2015.
Petäjä, T., Kerminen, V.-M., Dal Maso, M., Junninen, H., Koponen, I.
K., Hussein, T., Aalto, P. P., Andronopoulos, S., Robin, D., Hämeri, K.,
Bartzis, J. G., and Kulmala, M.: Sub-micron atmospheric aerosols in the
surroundings of Marseille and Athens: physical characterization and new
particle formation, Atmos. Chem. Phys., 7, 2705–2720,
https://doi.org/10.5194/acp-7-2705-2007, 2007.
Petters, M. D. and Kreidenweis, S. M.: A single parameter representation of hygroscopic growth and cloud condensation nucleus activity, Atmos. Chem. Phys., 7, 1961–1971, https://doi.org/10.5194/acp-7-1961-2007, 2007.
Psichoudaki, M., Nenes, A., Florou, K., Kaltsonoudis, C., and Pandis, N. S.:
Hygroscopic properties of atmospheric particles emitted during wintertime
biomass burning episodes in Athens, Atmos. Environ., 178,
66–72,
https://doi.org/10.1016/j.atmosenv.2018.01.004, 2018.
Rose, C., Collaud Coen, M., Andrews, E., Lin, Y., Bossert, I., Lund Myhre,
C., Tuch, T., Wiedensohler, A., Fiebig, M., Aalto, P., Alastuey, A.,
Alonso-Blanco, E., Andrade, M., Artíñano, B., Arsov, T.,
Baltensperger, U., Bastian, S., Bath, O., Beukes, J. P., Brem, B. T.,
Bukowiecki, N., Casquero-Vera, J. A., Conil, S., Eleftheriadis, K., Favez,
O., Flentje, H., Gini, M. I., Gómez-Moreno, F. J., Gysel-Beer, M.,
Hallar, A. G., Kalapov, I., Kalivitis, N., Kasper-Giebl, A., Keywood, M.,
Kim, J. E., Kim, S.-W., Kristensson, A., Kulmala, M., Lihavainen, H., Lin,
N.-H., Lyamani, H., Marinoni, A., Martins Dos Santos, S., Mayol-Bracero, O.
L., Meinhardt, F., Merkel, M., Metzger, J.-M., Mihalopoulos, N., Ondracek,
J., Pandolfi, M., Pérez, N., Petäjä, T., Petit, J.-E., Picard,
D., Pichon, J.-M., Pont, V., Putaud, J.-P., Reisen, F., Sellegri, K.,
Sharma, S., Schauer, G., Sheridan, P., Sherman, J. P., Schwerin, A., Sohmer,
R., Sorribas, M., Sun, J., Tulet, P., Vakkari, V., van Zyl, P. G., Velarde,
F., Villani, P., Vratolis, S., Wagner, Z., Wang, S.-H., Weinhold, K.,
Weller, R., Yela, M., Zdimal, V., and Laj, P.: Seasonality of the particle
number concentration and size distribution: a global analysis retrieved from
the network of Global Atmosphere Watch (GAW) near-surface observatories,
Atmos. Chem. Phys., 21, 17185–17223,
https://doi.org/10.5194/acp-21-17185-2021, 2021.
Riemer, N., Ault, A. P., West, M., Craig, R. L., and Curtis, J. H.: Aerosol
mixing state: Measurements, modeling, and impacts, Rev. Geophys.,
57, 187–249, https://doi.org/10.1029/2018RG000615, 2019.
Rosenfeld, D., Andreae, M. O., Asmi, A., Chin, M., Leeuw, G., Donovan, D.
P., Kahn, R., Kinne, S., Kivekäs, N., Kulmala, M., Lau, W., Schmidt, K.
S., Suni, T., Wagner, T., Wild, M., and Quaas, J.: Global observations of
aerosol-cloud-precipitation-climate interactions, Rev. Geophys., 52, 750–808, https://doi.org/10.1002/2013RG000441, 2014.
Schmale, J., Henning, S., Henzing, B., and Gysel, M.: Collocated observations of
cloud condensation nuclei, particle size distributions, and chemical
composition, Sci. Data, 4, 170003, https://doi.org/10.1038/sdata.2017.3, 2017.
Schmale, J., Henning, S., Decesari, S., Henzing, B., Keskinen, H., Sellegri,
K., Ovadnevaite, J., Pöhlker, M. L., Brito, J., Bougiatioti, A.,
Kristensson, A., Kalivitis, N., Stavroulas, I., Carbone, S., Jefferson, A.,
Park, M., Schlag, P., Iwamoto, Y., Aalto, P., Äijälä, M.,
Bukowiecki, N., Ehn, M., Frank, G., Fröhlich, R., Frumau, A., Herrmann,
E., Herrmann, H., Holzinger, R., Kos, G., Kulmala, M., Mihalopoulos, N.,
Nenes, A., O'Dowd, C., Petäjä, T., Picard, D., Pöhlker, C.,
Pöschl, U., Poulain, L., Prévôt, A. S. H., Swietlicki, E.,
Andreae, M. O., Artaxo, P., Wiedensohler, A., Ogren, J., Matsuki, A., Yum,
S. S., Stratmann, F., Baltensperger, U., and Gysel, M.: Long-term cloud
condensation nuclei number concentration, particle number size distribution
and chemical composition measurements at regionally representative
observatories, Atmos. Chem. Phys., 18, 2853–2881,
https://doi.org/10.5194/acp-18-2853-2018, 2018.
Sjogren, S., Gysel, M., Weingartner, E., Alfarra, M. R., Duplissy, J.,
Cozic, J., Crosier, J., Coe, H., and Baltensperger, U.: Hygroscopicity of
the submicrometer aerosol at the high-alpine site Jungfraujoch, 3580 m a.s.l., Switzerland, Atmos. Chem. Phys., 8, 5715–5729,
https://doi.org/10.5194/acp-8-5715-2008, 2008.
Stolzenburg, M., McMurry, P., Sakurai, H., Smith, J., Mauldin, R., Eisele,
F., and Clement, C.: Growth rates of freshly nucleated atmospheric particles
in Atlanta, J. Geophys. Res., 110, D22S05, https://doi.org/10.1029/2005JD005935, 2005.
Swietlicki, E., Hansson, H.-C., Hameri, K., Svenningsson, B., Massling, A.,
McFiggans, G., McMurry, P. H., Petäjä, T., Tunved, P., Gysel, M.,
Topping, D., Weingartner, E., Baltensperger, U., Rissler, J., Wiedensohler,
A., and Kulmala, M.: Hygroscopic properties of submicrometer atmospheric
aerosol particles measured with H-TDMA instruments in various environments –
a review, Tellus B, 60,
432–469, https://doi.org/10.1111/j.1600-0889.2008.00350.x, 2008.
Tritscher, T., Dommen, J., DeCarlo, P. F., Gysel, M., Barmet, P. B.,
Praplan, A. P., Weingartner, E., Prévôt, A. S. H., Riipinen, I.,
Donahue, N. M., and Baltensperger, U.: Volatility and hygroscopicity of
aging secondary organic aerosol in a smog chamber, Atmos. Chem. Phys., 11,
11477–11496, https://doi.org/10.5194/acp-11-11477-2011, 2011.
Tsiflikiotou, M. A., Kostenidou, E., Papanastasiou, D. K., Patoulias, D.,
Zarmpas, P., Paraskevopoulou, D., Diapouli, E., Kaltsonoudis, C., Florou,
K., Bougiatioti, A., Stavroulas, I., Theodosi, C., Kouvarakis, G.,
Vasilatou, V., Siakavaras, D., Biskos, G., Pilinis, C., Eleftheriadis, K.,
Gerasopoulos, E., Mihalopoulos, N., and Pandis, S. N.: Summertime
particulate matter and its composition in Greece, Atmos. Environ., 213, 597–607,
https://doi.org/10.1016/j.atmosenv.2019.06.013, 2019.
Vlasenko, S., Sjögren, E., Weingartner, H., Gäggeler, H. W., and Ammann, M.: Generation of Submicron Arizona Test Dust Aerosol: Chemical and
Hygroscopic Properties, Aerosol Sci. Technol., 39, 452–460,
https://doi.org/10.1080/027868290959870, 2005.
Vratolis, S., Gini, M. I., Bezentakos, S., Stavroulas, I., Kalivitis, N.,
Kostenidou, E., Louvaris, E., Siakavaras, D., Biskos, G., Mihalopoulos, N., Pandis,
S. N., Pilinis, C., Papayannis, A., and Eleftheriadis, K.: Particle number size
distribution statistics at city-centre, urban background, and remote
stations in Greece during summer, Atmos. Environ., 213, 711–726, 2019.
Vu, T. V., Shi, Z., and Harrison, R. M.: Estimation of hygroscopic growth
properties of source-related sub-micrometre particle types in a mixed urban
aerosol, Clim. Atmos. Sci., 4, 21,
https://doi.org/10.1038/s41612-021-00175-w, 2021.
Wang, X., Shen, X. J., Sun, J. Y., Zhang, X. Y., Wang, Y. Q., Zhang, Y. M.,
Wang, P., Xia, C., Qi, X. F., and Zhong, J. T.: Size-resolved hygroscopic
behavior of atmospheric aerosols during heavy aerosol pollution episodes in
Beijing in December 2016, Atmos. Environ., 194,
188–197, https://doi.org/10.1016/j.atmosenv.2018.09.041,
2018.
Wiedensohler, A., Birmili, W., Nowak, A., Sonntag, A., Weinhold, K., Merkel,
M., Wehner, B., Tuch, T., Pfeifer, S., Fiebig, M., Fjäraa, A. M., Asmi,
E., Sellegri, K., Depuy, R., Venzac, H., Villani, P., Laj, P., Aalto, P.,
Ogren, J. A., Swietlicki, E., Williams, P., Roldin, P., Quincey, P.,
Hüglin, C., Fierz-Schmidhauser, R., Gysel, M., Weingartner, E.,
Riccobono, F., Santos, S., Grüning, C., Faloon, K., Beddows, D.,
Harrison, R., Monahan, C., Jennings, S. G., O'Dowd, C. D., Marinoni, A.,
Horn, H.-G., Keck, L., Jiang, J., Scheckman, J., McMurry, P. H., Deng, Z.,
Zhao, C. S., Moerman, M., Henzing, B., de Leeuw, G., Löschau, G., and
Bastian, S.: Mobility particle size spectrometers: harmonization of
technical standards and data structure to facilitate high quality long-term
observations of atmospheric particle number size distributions, Atmos. Meas.
Tech., 5, 657–685, https://doi.org/10.5194/amt-5-657-2012, 2012.
Xu, W., Sun, Y., Wang, Q., Zhao, J., Wang, J., Ge, X., Xie, C., Zhou, W.,
Du, W., Li, J., Fu, P., Wang, Z., Worsnop, R. D., and Coe, H.: Changes in
aerosol chemistry from 2014 to 2016 in winter in Beijing: Insights from
high-resolution aerosol mass spectrometry, J. Geophys. Res.-Atmos., 124, 1132–1147, https://doi.org/10.1029/2018JD029245, 2019.
Zhang, Q., Jimenez, J. L., Canagaratna, M. R., Ulbrich, I. M., Ng, N. L.,
Worsnop, D. R., and Sun, Y.: Understanding atmospheric organic aerosols via
factor analysis of aerosol mass spectrometry: a review, Anal. Bioanal. Chem., 401,
3045–3067, https://doi.org/10.1007/s00216-011-5355-y, 2011.
Zografou, O., Gini, M., Manousakas, M. I., Chen, G., Kalogridis, A. C., Diapouli, E., Pappa, A., and Eleftheriadis, K.: Combined organic and inorganic source apportionment on yearlong ToF-ACSM dataset at a suburban station in Athens, Atmos. Meas. Tech., 15, 4675–4692, https://doi.org/10.5194/amt-15-4675-2022, 2022.
Short summary
The paper provides insights into the hygroscopic properties and state of mixing of atmospheric aerosol through 1 year of measurements of key microphysical parameters in the suburbs of the most densely populated city of Greece, Athens, in the eastern Mediterranean, which is considered an important climate change hotspot. The results can be used for the prediction of cloud condensation nuclei and quantification of the influence of ambient relative humidity on light scattering by aerosol particles.
The paper provides insights into the hygroscopic properties and state of mixing of atmospheric...
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