Our working group was represented with two contributions at the IAUC Virtual Poster Conference of the International Association for Urban Climate from 30.08. to 01.09.2022. The posters dealt with the determination of emission factors for ultrafine particles from multi-year eddy covariance particle flux measurements in Berlin and the impact of the COVID-19 lockdown in spring 2020 on the size-classified particle fluxes at our Berlin measurement site. The online conference enabled an exchange with other scientists worldwide at any time of the day.
