Dr. Emma Luo has over 15 years of experience in vapor intrusion research, site investigation, and mitigation. Since 2012, she has been working as a subject matter expert (SME) on vapor intrusion for Chevron. She has worked on more than 500 PVI and CVI sites. Before joining Chevron, she was a key researcher in three of the four well-known large-scale vapor intrusion field research studies (2 PVI and 1 CVI) in the US, when she was studying with, and working in, Dr. Paul Johnson's research lab at Arizona State University. She has authored and co-authored more than 40 peer-reviewed journal articles and conference presentations.