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 dtec.bw MORE and LUKAS projects.

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.