This website talked about almost everything we need to cover on Nuclear Power for IDU. It talks about how nuclear power was made, the disadvantages and advantages, etc.
Health effects are the central focus of EPA's Radiation Protection Programs. This site talk about the long and short effect of radiation, health effect after amount of time exposing to radiation, and other risks of radiation exposure.
The US EPA (Environmental Protection Agency of America" suggest simple things to do to avoid radiation exposure such as wearing heavy clothes and making a shield to protect your skin from the radiation.
The International Atomic Energy Agency (IAEA) and the Japanese nuclear industry have agreed that Japan won't be experience a Chernobyl incident. The IAEA provided a scale for nuclear accidents and the Fukushima is at level 4 while Chernobyl was at level 7.