GCSE Physics (AQA)

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Nuclear Power Risks

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Energy National and global energy resources

Nuclear Power Risks

2:00 Environmental Impact of Energy Resources
Spec 4.1.3
Previous Pollution Next Impact of Dams
  • Nuclear fuels do not produce pollutant gases like fossil fuels.
  • Gas released from nuclear reactors is harmless steam.
  • Nuclear power stations are controversial due to environmental impacts.
  • They do not produce carbon dioxide or sulfur dioxide.
  • Nuclear reactors produce radioactive isotopes.
  • Smaller nuclei created in reactors are radioactive and undergo decay.
  • These products are referred to as nuclear waste.
  • Radiation is harmful to health and can contaminate the environment for centuries.
  • Nuclear waste must be safely stored for hundreds of years.
  • Waste is often sealed in lead containers underground or in disused mines.
  • Nuclear power stations are designed to prevent radiation leaks.
  • Concrete shields are used to prevent radiation from escaping.
  • Extensive research and care are involved in handling and transporting waste.
  • Safety measures include emergency shutdowns for out-of-control reactions.
  • There is a risk of accidents, as seen in Chernobyl (1986) and Fukushima (2011).

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