The Michigan Department of Environmental Quality (MDEQ) has announced that it will be hosting workshops on the Volatilization to Indoor Air Pathway (VIAP) to provide guidance and training on Vapor Intrusion (VI).  The MDEQ will be conducting four workshops throughout the state. The workshops will provide information on the concepts and fundamentals of VIAP, steps associated with investigations, collection and use of evidence, information on the USDA soil classification system, mitigation strategies, and VI sampling methodology and supplies.