The U.S. Nuclear Regulatory Commission (NRC)The NRC regulates and oversees the civilian uses of nuclear materials in the United States by licensing facilities that possess, use, or dispose of nuclear materials; establishing standards; and inspecting licensed facilities. This includes nuclear power plants. The NRC is responsible for implementing the EPA established standards at the facilities they oversee. Show
Most states have signed formal agreements with the NRC, providing the states regulatory responsibility over small quantities of special nuclear material. These states are known as Agreement States. The radioactive materials license can be issued either by the NRC or an Agreement State. The NRC Agreement State Program How the NRC Protects You Nuclear Reactors Student’s Corner: Nuclear Energy The U.S. Environmental Protection Agency (EPA)The EPA uses its authority from the Clean Air Act to set limits on the amount of radioactive material released into the air from nuclear power plants. The EPA sets environmental standards for the disposal of spent nuclear fuel, high-level wastes. Environmental Radiation Protection Standards for Nuclear Power Operations (40 CFR Part 190) Radiation: Facts, Risks and Realities Overview of the Clean Air Act and Air Pollution The U.S. Department of Homeland Security (DHS), the Federal Emergency Management Agency (FEMA)FEMA evaluates state and local emergency response plans for areas around nuclear power plants. Nuclear Power Plant Emergencies Nuclear Power Plant Fact Sheet (PDF) (2 pp, 106 K, About PDF) The U.S. Department of Energy (DOE), U.S. Energy Information Administration (EIA)The DOE has oversight responsibilities related to radioactive waste disposal and domestic energy production. The EIA, a branch of the DOE, collects, analyzes, and releases information about different energy sources. They have a role in educating the public about energy. Nuclear Energy Sources Nuclear & Uranium Energy Kids Nuclear Explained The StatesEach nuclear power plant must have an emergency response plan for incidents that occur on-site. State and local authorities have emergency response plans for incidents that could release radiological material outside the plant property. These emergency response plans are designed to work together. State and local authorities practice their emergency plans every two years at every commercial nuclear power plant. State Radiation Protection Programs Radiation is energy that travels in invisible waves or rays. Exposure to radiation is an everyday occurrence – in fact, it has always been a part of life on Earth. Radiation can be natural or man-made. Natural:
Man-made:
Understanding Types of Radiation There are two types of radiation: non-ionizing (low frequency) and ionizing (high frequency). Both types can be harmful in excessive amounts. Fortunately, scientists, nuclear engineers and doctors understand radiation and know how to harness its benefits and protect us from its dangers. Non-ionizing radiation emits enough energy to move or “excite” atoms. For example, microwave ovens use non-ionizing radiation to cook food. The radiation vibrates water contained in food, which creates heat. That heat cooks the food. Ionizing radiation emits enough energy to change the structure of an atom, which can damage biological cells. For instance, a sunburn is a type of radiation damage. In nuclear facilities, technicians focus on four types of ionizing radiation: alpha, beta, gamma and neutrons. Alpha radiation is too weak to penetrate most objects. Beta radiation is stronger, while gamma radiation is the strongest. Neutrons can penetrate many objects, but are slowed by water. Measuring Radiation Radiation doses are measured in an international unit called a Sievert (Sv). Typically, radiation doses are so low that they are measured in milliSieverts (mSv) or one-thousandth of a Sievert. Because exposure to radiation happens every day, it is helpful to understand the average amount of radiation that people receive from natural and man-made sources. For instance, the average annual radiation dose that a person receives from food and water is nearly 0.3 mSv. At the same time, the average annual radiation dose that the public receives from nuclear power is 0.0002 mSv. Managing Radiation in Nuclear Energy Plants The nuclear energy industry follows international best practices and standards to protect the public, workers and the environment. Modern nuclear energy plants use many barriers to protect people from radiation. Every barrier provides another layer of protection. In addition, the intensity of radiation decreases with distance from the source. Nuclear energy plants add distance from radioactive sources by incorporating large open spaces around the facility that the public cannot enter. Radiation Protection All restricted areas of the plant are clearly marked. In addition, there are three simple ways to limit exposure to radiation.
How much radiation do you get from living near a nuclear power plant?A person who lives near an operating nuclear power plant could receive an additional 0.001 mSv per year from normal operation, which is at least 1,000 times lower than the dose from natural background radiation.
Do nuclear power plant workers get exposed to radiation?On average, nuclear power workers receive a lower annual radiation dose than flight crew, and frequent flyers in 250 hours would receive 1 mSv. The maximum annual dose allowed for radiation workers is 20 mSv/yr, though in practice, doses are usually kept well below this level.
How safe is it to work in a nuclear power plant?Workers in the nuclear industry have a fatal injury rate of about 0.1 per 100,000 workers, making ... [+] That's because it is easy to measure and guard against radiation, and the extreme safety protocols at nuclear plants are the best in the world.
How high is the exposure rate of someone working in a nuclear power plant?In order for nuclear workers to experience short-term health effect due to radiation, or in other words, experience acute symptom, workers need to be exposed to more than the radiation dose (100mSv), but the average measurable dose of radiation exposure per worker is 0.19mSV, way less than the radiation dose.
|