The 2024 Annual Meeting of the European Meteorological Society will take place as a hybrid event at the Historical University of Barcelona & online from 2 to 6 September 2024 (https://ems2024.eu/). Prof. Aijun Ding, School of Atmospheric Sciences at Nanjing University, will give his lecture on “Interactions of Atmospheric Chemistry and Atmospheric Boundary Layer: From Megacity to Gigacity” on Wed, 04 Sep, 16:00–16:30 (CEST), A111 (Aula Joan Maragall), as a S. Zilitinkevich Memorial Award Lecture 2024.