We kindly invite you to the European Workshop on Ultrafine Particle Number Size Distribution (PNSD) Part 2.
Ultrafine particles (UFP) which are present in the air in large numbers, pose a health risk. They generally enter the body through the lungs but translocate to essentially all organs. Compared to fine particles (PM2.5), they cause more pulmonary inflammation and are retained longer in the lung. Their toxicity is increased with smaller size, larger surface area, adsorbed surface material, and the physical characteristics of the particles.
This project related to TOPIC 5 SMP-STAND-2025-ESOS-01-IBA will aim to revise and validate the existing Technical Specification CEN/TS 17434:2020 'Ambient air - Determination of the particle number size distribution of atmospheric aerosol using a Mobility Particle Size Spectrometer (MPSS)' and develop a new European standard for measurement of particle number size distribution.
For this purpose, two workshops with dedicated experts, including members of the CEN/TC 264/WG 32 ''Ambient air - Particle number concentration', will be organized by the VDI/DIN-Commission on Air pollution prevention (KRdL) that works on behalf of DIN as monopolistic subcontractor.
The second workshop will determine the reference set up for MPSS calibration, based on results of a prior intercomparison among anticipated golden MPSS. The results are discussed in order to define the allowed uncertainty budgets for golden MPSS and for field MPSS upon calibration against a golden MPSS.
Participation is free of charge, but registration is mandatory.