Exit Signs: Tritium Exposure.
There are many types of exit signs available to the general public. Fixed and electrically illuminated signs are the standard for most building codes. Signs that produce their own illumination are available as well. These signs are important because they serve as a safeguard should a building lose power in the event of an emergency. One type of self-illuminated life uses the compound of tritium. Tritium is a radioactive substance that has a half life of just over 12 years. It is used primarily in the area of nuclear research. It can be used in the triggering mechanism for nuclear weapons, and is also prevalent at nuclear energy plants. There is always a small amount of tritium in the water, atmosphere and earth, and just about every human has ingested some amount of the compound. Those who live next to nuclear reactors or nuclear weapons facilities stand a greater chance of ingesting tritium. Tritium is also used to illuminate exit signs, and these signs will through off low levels of radiation. Because of this, it is wise to consider an alternative type of sign. Photo luminescent signs are safe, reliable, and easy to install. They offer the same capabilities without the consequence of radiation.
Exit Signs