Ms. Tohn is an environmental and health consultant with over 20 years of experience. She is the founder and principal of Tohn Environmental Strategies and a nationally recognized expert in housing based environmental health threats, healthy housing and indoor air quality, and lead poisoning prevention. Ms. Tohn also has extensive sector experience working on clean air, solid and hazardous waste, toxic substances, and comparative risk. Ms. Tohn works with housing developers, property owners, managers and architects to create green and healthy housing. She has assisted national/regional and local health advocates catalyze effective and lasting policy solutions; contributed to numerous Federal and state guidance documents; developed Federal and local healthy housing and lead training courses; and designed and managed environmental health research studies resulting in peer-reviewed publications and influencing Federal regulatory actions. She recently directed a project to develop Guidance for EPA’s Energy Star Indoor Air Quality Specifications and serves as an advisor on indoor air quality issues to the US Green Building Council’s LEED for Homes standards setting process and numerous other green building programs.