Shelter in Place 2 : Selecting a small, interior room, with no or few windows, and taking refuge there. It does not requires sealing off the entire home or office building
U.S. Environmental Protection Agency, Radiation Glossary, Office of Radiation and Indoor Air Radiation Protection Division, Washington, DC, USA 2013. http://www.epa.gov/radiation/glossary/index.html#a , (Dzstr/ Rad Emr - Amer) {823}