Earthquakes accompanied by tsunamis that occurred in Japan raises the potential for new hazards. Therefore, some nuclear power plants (NPP) in Japan were damaged. The threat of radioactive contamination hazards to surface eventually. Is a kind of radioactive substance that is on the surface or in a solid, liquid or gas which is harmful to human body presence. Radioactive comes from radionuclides (radioisotopes), an unstable nucleus due to excessive energy.
According atomicarchive.com site, there are at least seven harmful effects human body when exposed to radioactive leaks from nuclear power plants:-
1. Hair: Hair will disappear quickly when exposed to radiation at 200 Rems or more. (Rems is a unit of radioactive strength.)
2. Brain: brain cells will not be damaged directly unless exposed to radiation measuring Rems 5000 or more. Like the heart, radiation kills nerve cells and blood vessels and can cause seizures and sudden death.
3. Mumps glands: the thyroid gland is very susceptible to radioactive iodine. In certain amount, radioactive iodine can destroy part or all of the thyroid.
4. Circulatory system: when a person is exposed to radiation of about 100 Rems, blood lymphocyte count would be reduced, so that victims are more susceptible to infection. The initial symptoms are flu-like illness. According to the data when Nagasaki and Hiroshima explosions, showed symptoms can last for 10 years and may have long-term risks such as leukemia and lymphoma.
5. Heart: when exposed to radiation measuring Rems 1000 to 5000 will result in direct damage to blood vessels and can lead to heart failure and sudden death.
6. Gastrointestinal: radiation with a strength of 200 Rems will cause damage to the lining of the intestinal tract and can cause nausea, vomiting and bloody diarrhea.
7. Channels Reproduction: the reproductive tract will damage the reproductive tract with enough power under 200 Rems. In the long term, radiation victims will experience infertility.