International Aerosol Conference (IAC) 2022 in Athens

At the International Aerosol Conference (IAC) from 4. to 9. of September 2022 in Athens, members of Prof. Thomas Adam’s research group presented their latest results.

In a talk titled "Mobile Measurements and Personal Sampling during the Subway Commuting to Analyze Metals, identify Hot-spots and determine the Spatiotemporal Variability of PM", Jan Bendl presented a newly designed self-made system for mobile air quality measurement that can determine the spatio-temporal variability of aerosol, sources and hot-spots of pollution and determine the actual personal exposure during commuting. The results of air quality measurements in the Munich subway were presented, showing high concentrations of especially coarse aerosol on the platforms but also in the train during the commute. Elemental analysis by ICP-MS and electron microscopy revealed that most of the mass is composed of iron oxides from abrasions on rails, wheels and brakes, thus revealing the sources of the pollution. This study was funded by the MORE and LUKAS projects.






The oral presentation titled “Combustion particles of different marine fuels: genotoxic and mutagenic potential towards human lung cells and evaluation of a wet-scrubber regarding particle removal efficiency” was delivered by Dr. Seongho Jeong. This presentation offered a comprehensive exploration spanning from the physical and chemical characteristics to the toxicological potentials of combustion particles originating from various marine fuels. The findings revealed that particles derived from marine fuels with lower sulfur content do not necessarily lead to reduced toxicological potential; in fact, they may increase the potential of genotoxicity and mutagenicity. Although abatement systems effectively reduced sulfur dioxide concentrations, their impact on emitted particle concentrations was not significant. The talk underscored the necessity of implementing additional abatement systems for particle emissions to safeguard human health and mitigate the environmental impact of maritime activities.

In her poster presentation entitled „Determination of the metal fraction in marine engine emissions working under different operating conditions”, Dr. Sara Padoan presented the results of a study part of the broader project Optimization of scrubber exhaust- Gas scrubbing technology to reduce environmentally harmful ship emissions (SAARUS). The first part of this project focused on the comprehensive physical/chemical characterisation of the emissions of several ship fuels. Here, the metal fraction has been quantified in the emissions of six different marine fuels which were also working under different operating conditions, by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The results obtained show the different metallic compositions in the emissions of the different fuels, highlighting common characteristics for some of them. In addition, it has been noticed that the emissions of fuels working under different operating conditions shows a clear trend of change in the metal composition. These first results are significant in order to focus on an overall well-targeted reduction of emissions.


IAC is held once every 4 years, making it the largest aerosol conference in the world. Submissions are carefully selected and only high quality submissions are accepted for oral presentation. Not only renowned experts from all over the world attend this conference, but also the most prominent instrument manufacturers in the field and thus the benefit of attending this conference is significant.