Effects of vegetation on radon transport processes in soil
This research was conducted to measure radon concentrations. Radon concentrations in soil gas were measured on a weekly schedule. Samples were extracted through the tubes used for measuring pressure differentials at depths of 30, 100, 180 cm. The average soil moisture content was measured with the neutron gauge. Other soil parameters such as soil temperature and meteorological data were analyzed in order to determine their influence on soil radon concentrations. For indoor radon concentrations, 15 minute measurements were used to obtain a monthly average for one structure from January 1989--August 1990. Also measured were wind speed and pressure differential correlations with radon concentration. The salient features of the data obtained thus far are as follows: radon gas concentrations in the silty clay surrounding the structures increased with depth; monthly averaged radon concentrations in the underground structures do not exhibit obvious seasonal variations; indoor radon concentrations are not correlation with pressure differences between the structure and surrounding soil; for these structures the radon entry rate has two components; one that is constant and the other that changes with time; and the wind speeds that increase the radon entry rate, also increase the ventilation rate. 11 figs.
- Research Organization:
- Colorado State Univ., Fort Collins, CO (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-87ER60581
- OSTI ID:
- 6154501
- Report Number(s):
- DOE/ER/60581-3; ON: DE91008515
- Country of Publication:
- United States
- Language:
- English
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Effects of vegetation on radon transport processes in soil
Effects of vegetation on radon transport processes in soil. Progress report, November 1, 1989--October 31, 1990
Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BUILDINGS
RADIONUCLIDE MIGRATION
EARTH ATMOSPHERE
RADIOECOLOGICAL CONCENTRATION
VARIATIONS
RADON
SOILS
INDOOR AIR POLLUTION
MOISTURE
PLANTS
PROGRESS REPORT
RADIATION MONITORING
TIME DEPENDENCE
WIND
AIR POLLUTION
DOCUMENT TYPES
ECOLOGICAL CONCENTRATION
ELEMENTS
ENVIRONMENTAL TRANSPORT
FLUIDS
GASES
MASS TRANSFER
MONITORING
NONMETALS
POLLUTION
RARE GASES
540230* - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- (1990-)
540130 - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (1990-)
320107 - Energy Conservation
Consumption
& Utilization- Building Systems- (1987-)