But even a blast shelter cannot withstand a direct hit from a nuclear explosion. Blast shelters are specifically constructed to offer some protection against blast pressure, initial radiation, heat and fire.There are two types of structures, including: If you hear that an attack is imminent, you must take shelter. Radioactive fallout poses the greatest threat to people during the first two weeks, by which time it has declined to about 1 percent of its initial radiation level. In time, you will be able to leave the fallout shelter. Time – fallout radiation loses its intensity fairly rapidly.Shielding – the heavier and denser the materials – thick walls, concrete, bricks, books and earth – between you and the fallout particles, the better.An underground area such as a home or office building basement offers more protection than the first floor of a building. Distance – the more distance between you and the fallout particles, the better.There are three factors for protecting yourself and your family from radiation and fallout. mainland remains remote, but as foreign government capabilities increase over time, knowing what to do is becoming a reasonable part of overall readiness. The likelihood of a missile attack on the U.S. We live in an age where nuclear ambitions are once again becoming relevant when we speak about disaster preparedness.
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