With reference Tritium, consider the following statements.
- Like ordinary water, water containing tritium, or tritiated water, is colorless and odorless.
- Most tritium in the environment is in the form of tritiated water, which is easily distributed in the atmosphere, water bodies, soil, and rock.
- Tritium is a hazard only when taken inside the body (internal hazard). It enters in to the body only when people drink tritiated water.
Correct answer is
- Only 1 & 3
- Only 2
- Only 1 & 2
- All of above
Answer: (d) All of above
Statement 1 is Correct;
Tritium is radioactive and has a half-life of about 12.5 years, which means that half of the radioactive atoms will decay naturally in that time. Although tritium can be a gas under controlled conditions, its most common form is liquid, because, like hydrogen, tritium reacts with oxygen to form water. Like ordinary water, water containing tritium, or tritiated water, is colorless and odorless. Of the three primary types of radiation, alpha, beta and gamma, tritium emits only beta radiation.
Statement 2 is Correct;
Tritium occurs naturally in the environment in very low concentrations. Most tritium in the environment is in the form of tritiated water, which is easily distributed in the atmosphere, water bodies, soil, and rock. Now a days sources of tritium include commercial nuclear reactors, and government weapons production plants. Tritium may be released as airborne or liquid effluent from these facilities, or may leak into the underlying soil and ground water. However, such releases are usually small and are required to be within strict federal environmental limits
Statement 3 is Correct;
Tritium primarily enters the body when people drink tritiated water. People may also inhale tritium as a gas or absorb it through their skin, but exposure to harmful levels of tritium through these exposure pathways is very unlikely. Once tritium enters the body, it is quickly and uniformly distributed throughout the body, going directly into soft tissues and organs. The associated dose to these tissues is generally uniform and dependent on the tissues’ water content.
With reference Tritium
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