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Measurements of the spatial distribution of tritium in air above a chronically contaminated surface

Abstract

Tritium in air (HTO) concentrations were measured over a 13 month period above a surface that is chronically contaminated by tritium-bearing groundwater from a waste management area. The measurements were made using passive diffusion samplers, which were sited at six locations (about 100 m apart) at 0.15, 0.9, and 1.8 m above ground level. The diffusion samplers were compact, sampled at a known rate, and required no external power source. They are ideal for remote locations and require a minimum of effort to collect and analyze the data. HTO-in-air concentration peaked in the summer at 500-1500 Bq.m{sup -3} and decreased in the winter to 1-120 Bq.m{sup -3}. In general, concentration decreased with height above ground level, implying that HTO is being lost from the surface to the atmosphere. The flux of tritium to the atmosphere must, therefore, be taken into account to estimate the tritium mass balance for a contaminated area. (Author) 3 figs., 5 tabs., 10 refs.
Publication Date:
Jan 01, 1993
Product Type:
Technical Report
Report Number:
AECL-10752
Reference Number:
SCA: 560101; PA: AIX-25:025377; EDB-94:057978; NTS-94:016670; SN: 94001174657
Resource Relation:
Other Information: PBD: Jan 1993
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; RADIONUCLIDE MIGRATION; TRITIUM COMPOUNDS; AIR SAMPLERS; EXPERIMENTAL DATA; GROUND WATER; HEAVY WATER; LOW-LEVEL RADIOACTIVE WASTES; RADIATION MONITORING; SAND; SURFACE AIR; UNDERGROUND DISPOSAL; 560101; DOSIMETRY AND MONITORING
OSTI ID:
10138393
Research Organizations:
Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Nuclear Labs.
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE94619342; TRN: CA9400060025377
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
18 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Workman, W J.G., Davis, P A, Wood, M J, and Barry, P J. Measurements of the spatial distribution of tritium in air above a chronically contaminated surface. Canada: N. p., 1993. Web.
Workman, W J.G., Davis, P A, Wood, M J, & Barry, P J. Measurements of the spatial distribution of tritium in air above a chronically contaminated surface. Canada.
Workman, W J.G., Davis, P A, Wood, M J, and Barry, P J. 1993. "Measurements of the spatial distribution of tritium in air above a chronically contaminated surface." Canada.
@misc{etde_10138393,
title = {Measurements of the spatial distribution of tritium in air above a chronically contaminated surface}
author = {Workman, W J.G., Davis, P A, Wood, M J, and Barry, P J}
abstractNote = {Tritium in air (HTO) concentrations were measured over a 13 month period above a surface that is chronically contaminated by tritium-bearing groundwater from a waste management area. The measurements were made using passive diffusion samplers, which were sited at six locations (about 100 m apart) at 0.15, 0.9, and 1.8 m above ground level. The diffusion samplers were compact, sampled at a known rate, and required no external power source. They are ideal for remote locations and require a minimum of effort to collect and analyze the data. HTO-in-air concentration peaked in the summer at 500-1500 Bq.m{sup -3} and decreased in the winter to 1-120 Bq.m{sup -3}. In general, concentration decreased with height above ground level, implying that HTO is being lost from the surface to the atmosphere. The flux of tritium to the atmosphere must, therefore, be taken into account to estimate the tritium mass balance for a contaminated area. (Author) 3 figs., 5 tabs., 10 refs.}
place = {Canada}
year = {1993}
month = {Jan}
}