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Seasonal Trends in Environmental Tritium Concentrations in a Small Forest Adjacent to a Radioactive Waste Storage Area

Conference · · Fusion Technology
 [1];  [2]
  1. Japan Atomic Energy Research Inst. (JAERI), Tokai (Japan)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
+ Show Author Affiliations
Tritium (HTO) concentrations were studied for an entire year in a floodplain forest adjacent to a low-level radioactive solid waste storage area (SWSA No. 5) at Oak Ridge National Laboratory (ORNL) near Oak Ridge, Tennessee, USA. Tritium in soil was the principal source of HTO to the deciduous forest. Evaporation from the surface soil along with transpiration from trees leaves both contributed to HTO in the forest atmosphere. During the growing season, transpiration was the principal contributor of HTO to the forest atmosphere, while during the dormant season, the main source of atmospheric HTO was evaporation from the surface soil. Seasonal changes and the characteristics of vegetation will influence the relative importance of evaporation and transpiration as sources of atmospheric HTO near the ground in temperate deciduous forests.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5325539
Report Number(s):
CONF-910920--2; ON: DE91018937
Conference Information:
Journal Name: Fusion Technology Journal Issue: 2P2 Journal Volume: 21
Country of Publication:
United States
Language:
English

References (3)

Uptake of tritium by plants from atmosphere and soil journal January 1991
Water Budget of an Eastern Deciduous Forest Stand journal July 1983
The transfer of atmospheric HTO released from nuclear facilities during normal operation journal January 1988

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Related Subjects

052000 -- Nuclear Fuels-- Waste Management
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
540130 -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
540230* -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-)
540330 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1990-)
58 GEOSCIENCES
580000 -- Geosciences
AIR
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CLIMATES
DECIDUOUS TREES
ENVIRONMENTAL EXPOSURE PATHWAY
EVAPORATION
FLUIDS
FORESTS
GASES
GROUND WATER
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
LOW-LEVEL RADIOACTIVE WASTES
MATERIALS
MICROCLIMATES
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUCLEI
ODD-EVEN NUCLEI
ORNL
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PLANTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
RADIOISOTOPES
SEASONAL VARIATIONS
SOILS
SURFACE AIR
TRANSPIRATION
TREES
TRITIUM
US AEC
US DOE
US ERDA
US ORGANIZATIONS
VARIATIONS
WASTES
WATER
YEARS LIVING RADIOISOTOPES