Zhaoheng Gong is a Ph.D. candidate in Engineering Science starting from 2013-2018. He conducts chamber studies to probe gas-particle interactions, with a focus on conditions such as phase states that may influence the uptake of gas molecules onto particles. Using online mass spectrometry technique including HR-ToF-AMS and PTR-TOF-MS, he is able to monitor the uptake process in real time for both particle phase and gas phase. He also investigates photochemistry processes of biogenic VOCs by conducting chamber experiments as well as deploying the PTR-TOF-MS in field measurements. Mr. Gong has got both his B.S. and M.S. degrees from Peking University, China.