The presenter is a coauthor of the following paper on vapor intrusion attenuation factors recently published by Hawaii DOH staff. This presentation provides information on the importance of collecting sufficient soil gas data to accurately characterize sites and assess vapor intrusion risks.
Brewer, R., Nagashima, J., Rigby, M., Schmidt, M. and O'Neill, H. (2014), Estimation of Generic Subslab Attenuation Factors for Vapor Intrusion Investigations. Groundwater Monitoring & Remediation, 34: 79–92. doi: 10.1111/gwmr.12086, onlinelibrary.wiley.com/doi/10.1111/gwmr.12086/full