Abstract

Accurate measurement of airborne aerosols particles remains a significant challenge. Unlike gaseous pollutants, aerosols exhibit diverse behaviors, including potential loss during sampling and alterations in size and quantity through processes like agglomeration, sedimentation, diffusion, or impaction. Moreover, depending on their origin and formation conditions, aerosols vary widely in size, spanning from approximately 1 nm to a maximum of around 100 µm, encompassing 10 orders of magnitude in sizes.Nano measuring devices are employed to measure smaller particles (< 1000 nm), while Aerosol Spectrometers are utilized for larger particles (> 180 nm). This presentation will specifically address ambient air measurement devices designed for particulate matter (PM10 and PM2.5) and ultrafine particles (UFP). The latest advancements in these devices will be highlighted, providing a brief explanation of their measuring principles, and showcasing noteworthy measurement results.

About speaker:

Dr. Markus Pesch has been working as Technical Director of GRIMM Aerosol Technik GmbH, Germany since 2008. He earned his PhD from Technical University of Berlin in 1997. His expertise lies in air quality control and the measurement of air pollutants. His research activities predominantly revolve around the detection of particulate matter and investigations into source apportionment. With numerous lead author research publications in various peer-reviewed scientific journals, he has made significant contributions to the field. He is a member of the German Society for Aerosol Research (GAeF) and served as chairman and presenter of several national and international aerosol conferences.