11:30am - 11:45amMO2-2: 1
Spring Particles In CYprus (SPICY) – campaign; From oxidation of reactive trace gases and new particle formation to potentially active cloud condensation nuclei.
Tuija Jokinen1, Neha Deot1, Marije Van den Born2, Vijay Kanawade1
1The Cyprus Institute, Cyprus; 2University of Groningen
To investigate the impact of NPFE on the formation of cloud condensation nuclei (CCN) and cloud droplet numbers and to understand how gas phase emissions of reactive trace gases contribute to initiation of NPFE in the atmopshere, we designed a holistic set of observations, from reactive trace gases to CCN, both in-situ and remote sensing technologies, at the Cyprus Atmospheric Observatory (CAO) during spring 2024. The measurements included e.g. aerosol in-situ observations, ultrafine particle observations, reactive trace gas measurements, aerosol precursor observations, CCN and hygroscopicity measurements and aerosol remote sensing for aerosol optical depth and boundary layer hight estimations.
11:45am - 12:00pmMO2-2: 2
Linking source apportionment to PM2.5 oxidative potential: Insights from the East-Mediterranean region
Marc Fadel1, Nansi Fakhri2,3, Gilles Delmaire4, Gilles Roussel4, Gihane Mansour5, Patrick L. Hayes6, Dominique Courcot1, Frédéric Ledoux1, Charbel Afif2,3
11Unité de Chimie Environnementale et Interactions sur le Vivant, University of Littoral Côte d′Opale, Dunkirk, France; 2Emissions, Measurements, and Modeling of the Atmosphere Laboratory, CAR, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon; 3Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus; 4Laboratoire d’Informatique Signal et Image de la Côte d’Opale, University of Littoral Côte d’Opale, Calais, France; 5Laboratoire de Mathématiques et Applications, Unité de recherche Mathématiques et Modélisation, Faculty of Sciences, Saint Joseph University, Beirut, Lebanon; 6Department of Chemistry, Faculty of Sciences, Université de Montréal, Montréal, Québec, Canada
The East Mediterranean experiences high PM2.5 levels from transported pollution, local emissions, and natural sources like desert dust. Rising temperatures may intensify photochemical pollution. A study in Lebanon analyzed nearly 300 PM2.5 samples from four sites. PMF source apportionment showed natural sources contributed 21–48%, long-range transport 19–28%, and local anthropogenic sources 33–51%. Oxidative potential (OP), assessed via DTT and AA assays, was highest for traffic, biomass burning, and HFO combustion. Crustal dust had minimal OP impact, while ammonium sulfate showed significant contributions, likely due to associated carbonaceous species.
12:00pm - 12:15pmMO2-2: 3
Studying the impact of ship emissions on the PM chemical composition in a large Mediterranean Port
Anastasia Poupkou1, Natalia Liora1, Serafim Kontos1, Stavros Solomos1, Ioannis Kapsomenakis1, Georgios Grivas2, Vassiliki Assimakopoulos2, Kiriaki-Maria Fameli3, Athena Progiou1, Pavlos Kalabokas1, Nikolaos Mihalopoulos2, Dimitrios Melas4, Christos Zerefos1
1Research Centre for Atmospheric Physics and Climatology, Academy of Athens, Athens, Greece; 2Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, Greece; 3Department of Shipping, Trade and Transport, University of the Aegean, Chios, Greece; 4School of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
To assess the impact of ship emissions on the atmospheric PM load and chemical composition at the Piraeus Port (Greece), the WRF-CAMx modelling system was applied for January/July 2019 following the zero-out approach for ship emissions. Anthropogenic emissions were obtained from the CAMS-REG database, including ship emissions from the STEAM model. WRF-CAMx results were compared with PMF receptor modelling estimations for apportioned contributions of ships. Bottom-up domestic shipping pollutant emissions of the FEI-GREGAA emission inventory were compared with the STEAM model emissions to investigate the contribution of national versus international shipping on PM at the greater area of Piraeus Port.
12:15pm - 12:30pmMO2-2: 4
Characterization of Transport Contributions to Urban Aerosol Pollution in Barcelona: Source Apportionment Results from the AIR-PHONEMA Project
Kristina Glojek1,2, Laurence Christian Windell3, Benjamin Guy Jacques Chazeau4, Nicolas Marchand4, Manousos Ioannis Manousakas5, Brice Temime-Rousell4, Amendine Durand4, Maria López Olivé1, Marta Via Gonzalez2, Maria Cruz Minguillón1, Noemie Pérez1, Joaquim Cortés Hurtado1, André S. H. Prévôt3, Marjan Savadkoohi1, Marco Pandolfi1, Philip K. Hopke6,7, Petra Makorič2, Griša Močnik2, Joaquim Cortes8, Marc C. Martinez8, Xavier Querol1, Andrés Alastuey1
1Institute of Environmental Assessment and Water Research (IDAEA-CSIC, Slovenia; 2University of Nova Gorica, Nova Gorica, 5000, Slovenia; 3Center for Energy and Environmental Sciences, Paul Scherrer Institute (PSI), Villigen, 5232, Switzerland; 4Aix Marseille Université, CNRS, LCE, Marseille, 13007, France; 5Environmental Radioactivity & Aerosol Tech. for Atmospheric & Climate Impacts, INRaSTES, National Centre of Scientific Research “Demokritos”, Ag. Paraskevi, 15310, Greece; 6Departments of Public Health Sciences and Environmental Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY, 14627, USA; 7Institute for a Sustainable Environment, Clarkson University, Potsdam, NY, 13699, USA; 8Port de Barcelona, World Trade Center Barcelona, Edificio Este, planta baja Moll, Barcelona, 08039, Spain
A study within the AIR-PHONEMA project applied the Lenschow approach and advanced source apportionment techniques to assess road traffic and harbor activities' contributions to aerosol concentrations in Barcelona. Preliminary results indicated higher elemental concentrations at traffic and harbor sites compared to an urban background site. Notably, increased levels of copper (Cu), iron (Fe), barium (Ba), and chromium (Cr) were detected at the traffic site, while elevated vanadium (V) and nickel (Ni) levels were observed at the harbor site. The findings will support targeted mitigation strategies in coastal cities and enhance exposure assessments and health impact studies.
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