During September 13–14, Shizhen and Shaojun attended the 3rd Symposium on New Pollutant Control in Shanghai. Shizhen delivered two invited talks, one on high-volatile persistent organic pollutants (HV-POPs) and another on micro- and nanoplastics (MNPs) and tire wear particles (TWPs) in the atmosphere. Shaojun presented his research on the secondary formation of organophosphate esters (OPEs) in PM2.5. During the conference, they also met Lin Tian, Zhao Zhen, and many other alumni, which further enriched the academic and personal exchanges.