Estimation of Internal Contamination due to Tritium by Measuring the Concentration in Expired Air

Expiratory Testing as a Simple and Effective Bioassay Method for Screening Workers for Tritium Exposure in Fusion Test Facilities

“…It is assumed that ingested tritium soon reaches equilibrium in bodily fluids depending on metabolism and is distributed uniformly in all forms of soft tissue [9]. When tritium is present in the human body, a portion of it is discharged as exhaled water vapor during respiration [10]. Therefore, expiratory testing is often used at tritium handling facilities as a simple bioassay method [11][12][13].…”