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Online Professional Logo Gallery: for Nuclear Plant concepts |
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RADIOACTIVE FALLOUTOther hazards are strontium 90, an electron emitter with a half life of 28 years, and iodine 131 with a half life of only 8 days. Strontium 90 follows calcium chemistry, so that it is readily incorporated into the bones and teeth, particularly of young children who have received milk from cows consuming contaminated forage. Iodine 131 is a similar threat to infants and children because of its concentration in the thyroid gland. In addition, there is plutonium 239, frequently used in nuclear explosives. A bone seeker like strontium 90, it may also become lodged in the lungs, where its intense local radiation can cause cancer or other damage. Plutonium 239 decays through emission of an alpha particle (helium nucleus) and has a half life of 24,000 years. Next page >> |
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