Tritium Monitoring In The Atmosphere PDF Download

This report describes the various anthropogenic and natural sources of tritium in the atmosphere, the chemical forms of tritium in the atmosphere, and the physical and chemical behaviour of tritium in the atmosphere. This includes discussion of atmospheric dispersion processes and modeling approaches to estimating dispersion in the context of public dose assessment. The report also describes the dynamic behaviour of tritium in the hydrological cycle, including transfer of tritium from air to soil water and surface water, tritium transport from soil water to groundwater, and tritium behaviour in lake and river receiving environments. Beyond this literature review of tritium behaviour in atmospheric and hydrological environments, this report considers available tritium monitoring data for a number of licensed nuclear facilities releasing tritium, examines model predictions of environmental concentrations of tritium, and compares predicted and observed concentrations. The report is organized as follows: Section 2.0 describes the various sources of tritium, Section 3.0 describes the physical and chemical behaviour of tritium in the atmosphere, and Section 4.0 describes the behaviour of tritium in the hydrological cycle, and Section 5.0 compares predicted and observed behaviour at various release sites.--Includes text from document.