In the morning of January 28, 2022, Ms. Mengfan Cai successfully passed her PhD proposal exam. The title of her exam report is “Emission Assessment and Mitigation Strategies for Biogenic Volatile Organic Compounds from Agricultural Systems”. Her profound knowledge and excellent presentation helped her win a good evaluation from the external examiner, Dr. Wenfang Xie, and other examining committee members (Drs. Fariborz Haghighat, Sang Hyeok Han, and Chunjiang An).