A nuclear blast is an explosion with intense light and heat, a damaging pressure wave, and widespread radioactive material that can contaminate the air, water, and ground surfaces for miles around. During a nuclear incident, it is important to avoid radioactive material, if possible. While experts may predict at this time that a nuclear attack is less likely than other types, terrorism by its nature is unpredictable.
The following are guidelines for what you should do if a nuclear blast or accident occurs. Keep a battery-powered radio with you at all times and listen to the radio for specific instructions. Monitor other media sources as well if they are available. Close and lock doors and windows.
If there is advanced warning of an attack…
Take cover immediately, as far below ground as possible, though any shield or shelter will help protect you from the immediate effects of the blast and the pressure wave.
If you are told to evacuate:
- Keep car windows and vents closed; use re-circulating air.
If you are advised to remain indoors:
- Turn off the air conditioner, ventilation fans, furnace, and other air intakes.
- Go to a basement or other underground area, if possible.
- Do not use the telephone unless absolutely necessary.
If you think you have been exposed to nuclear radiation:
- Change clothes and shoes.
- Put exposed clothing in a plastic bag.
- Seal the bag and place it out of the way.
- Take a thorough shower.
Keep food in covered containers and in the refrigerator. Food not previously covered should be washed thoroughly before being put in to containers.
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