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Originally posted by rodredux
Not very comforting. I live right in the middle of all this, about fifteen minutes from Cairo, Illinois. Let me tell you, it's strange to drive through town and see the water just a couple inches below street level in places, and in others, just roofs sticking out of the water. I hope we can get out tomorrow. I live on high ground, thank goodness, but many of our businesses and roads in and out of town are not. And it's just keeps raining... 5 days of rain predicted for the next week. Someone send me a boat.
Tritium is radioactive, and will slowly decay over a period of several decades; due to its short half-life, it is not found in nature. Tritium is primarily used for nuclear fusion and self-powered light sources.
Although it can cause surface burns, and may be dangerous if inhaled or ingested, the radiation given off by tritium is too weak to penetrate the skin.
A tritium exit sign, watch, or rifle sight may continue to glow for decades with no source of external power. The green or red glow is not produced by the tritium itself; the electrons from recently decayed atoms hit a phosphor, which then glows from the added energy.