Nuclear Meltdown Survival
Nuclear power plants use the heat generated from nuclear fission in a contained environment to convert water to steam, which powers generators to produce electricity. Nuclear power plants operate in most states in the country and produce about 20 percent of the nation’s power. Nearly 3 million Americans live within 10 miles of an operating nuclear power plant.
Although the construction and operation of these facilities are closely monitored and regulated by the Nuclear Regulatory Commission (NRC), accidents are possible. An accident could result in dangerous levels of radiation that could affect the health and safety of the public living near the nuclear power plant.
Local and state governments, federal agencies, and the electric utilities have emergency response plans in the event of a nuclear power plant incident. The plans define two “emergency planning zones.” One zone covers an area within a 10-mile radius of the plant, where it is possible that people could be harmed by direct radiation exposure. The second zone covers a broader area, usually up to a 50-mile radius from the plant, where radioactive materials could contaminate water supplies, food crops, and livestock.
The potential danger from an accident at a nuclear power plant is exposure to radiation. This exposure could come from the release of radioactive material from the plant into the environment, usually characterized by a plume (cloud-like formation) of radioactive gases and particles. The major hazards to people in the vicinity of the plume are radiation exposure to the body from the cloud and particles deposited on the ground, inhalation of radioactive materials, and ingestion of radioactive materials.
Radioactive materials are composed of atoms that are unstable. An unstable atom gives off its excess energy until it becomes stable. The energy emitted is radiation. Each of us is exposed to radiation daily from natural sources, including the Sun and the Earth. Small traces of radiation are present in food and water. Radiation also is released from man-made sources such as X-ray machines, television sets, and microwave ovens. Radiation has a cumulative effect. The longer a person is exposed to radiation, the greater the effect. A high exposure to radiation can cause serious illness or death.
Although the risk of a chemical accident is slight, knowing how to handle these products and how to react during an emergency can reduce the risk of injury.
Minimizing Exposure to Radiation
Distance - The more distance between you and the source of the radiation, the better. This could be evacuation or remaining indoors to minimize exposure.
Shielding - The more heavy, dense material between you and the source of the radiation, the better
Time - Most radioactivity loses its strength fairly quickly.
If an accident at a nuclear power plant were to release radiation in your area, local authorities would activate warning sirens or another approved alert method. They also would instruct you through the Emergency Alert System (EAS) on local television and radio stations on how to protect yourself.
Know the Terms
Familiarize yourself with these terms to help identify a nuclear power plant emergency:
Notification of Unusual Event
A small problem has occurred at the plant. No radiation leak is expected. No action on your part will be necessary.
A small problem has occurred, and small amounts of radiation could leak inside the plant. This will not affect you and no action is required.
Site Area Emergency
Area sirens may be sounded. Listen to your radio or television for safety information.
Radiation could lake outside the plant and off the plant site. The sirens will sound. Tune to your local radio or television station for reports. Be prepared to follow instructions promptly.
Take Protective Measures
Before a Nuclear Power Plant Emergency
Obtain public emergency information materials from the power company that operates your local nuclear power plant or your local emergency services office. If you live within 10 miles of the power plant, you should receive these materials yearly from the power company or your state or local government.
During a Nuclear Power Plant Emergency
The following are guidelines for what you should do if a nuclear power plant emergency occurs. Keep a battery-powered radio with you at all times and listen to the radio for specific instructions. Close and lock doors and windows.
If you are told to evacuate:
- Keep care 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 expect 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 or in the refrigerator. Food not previously covered should be washed before being put in to containers.
After a Nuclear Power Plant Emergency
Seek medical treatment for any unusual symptoms, such as nausea, that may be related to radiation exposure.
Follow the instructions for recovering from a disaster in Part 5.
Technological Hazards Knowledge Check
Answer the following questions. Check your responses with the answer key.
- What are some things you can do to reduce the threat from hazardous materials in your home?
- What should you do if you are caught at the scene of a hazardous materials incident?
- What is the telephone number for the National Poison Control Center?
- What are three ways to minimize radiation exposure?
- Are there special warning requirements for nuclear power plants? If so, what are they?
- What does it mean when a nuclear power plant has issued a general emergency? What actions should you take?
- If you are at home and instructed to shelter-in-place because of a chemical release, where will you go?
- If you are in a car and unable to seek shelter in a building and a chemical release occurs, you should?
- Who can you contact to find out about hazardous materials stored in your community?
- What are some common places hazardous materials may be present in the community?
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