Top Takeaways and Key Concepts Seek Shelter Immediately: Enter a building or basement within 10–15 minutes of a detonation. Stay Indoors for 24–48 Hours: Limit exposure to radioactive fallout by remaining inside. Seal Entry Points: Close doors, windows, and vents; turn off fans and HVAC systems. Decontaminate Exposed Skin and […]
building shelter after disaster
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