Versar's Exposure and Risk Assessment Division (ERAD is comprised of a diverse staff of more than 30 in-house scientists (i.e., biologists, chemists, toxicologists, environmental scientists) and engineers (i.e., chemical, civil), as well as some outside subcontractors and consultants. Versar has more than 30 years conducting exposure and risk assessments, collecting exposure data from the literature and monitoring studies, developing computer models and databases, organizing workshops and meetings, and developing technology transfer materials on exposure assessment topics. While our primary focus is on exposure to environmental hazards, our diverse staff also has experience in hazardous waste, pollution prevention, meeting facilitation, and policy analysis.