Evolution of HTO Concentrations in Soil, Vegetation and Air during an Experimental Chronic HT Release
| Autor: | F.S. Spencer, P.A. Davis, D.C. Galeriu, B.D. Amiro |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Soil depth
Moisture 020209 energy General Engineering Air pollution 02 engineering and technology Vegetation medicine.disease_cause 01 natural sciences 010305 fluids & plasmas Environmental chemistry 0103 physical sciences 0202 electrical engineering electronic engineering information engineering medicine Environmental science Transpiration |
| Zdroj: | Fusion Technology. 28:833-839 |
| ISSN: | 0748-1896 |
| DOI: | 10.13182/fst95-a30508 |
| Popis: | A small experimental plot was continuously exposed to elevated levels of HT in air over a 12-day period to study the build up and steady-state concentrations of HTO in the environment. HTO concentrations in soil, vegetation and air all showed similar dynamics, increasing gradually over time with temporary decreases during and following rainfall. The relative magnitudes of the soil, vegetation and air concentrations depended on the height at which the air and vegetation were sampled, the depth at which the soil sample was taken and the soil depth over which the plants drew their transpiration water. The system was at or near steady-state in the last two or three days of the release. When averaged over an eight day interval that included periods of rain, the ratios of HTO concentration in soil, foliage and air moisture to HT concentration in air (measured 20 cm above the ground) were typically 0.0014, 0.0010 and 0.0011 (Bq/mL)/(Bq/m 3 ) for a cultivated field. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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