Technetium and uranium: Sorption by and plant uptake from peat and sand
Sheppard, MI; Vandergraaf, TT; Thibault, DH; Reid, JA
HERO ID
655447
Reference Type
Journal Article
Year
1983
Language
English
PMID
| HERO ID | 655447 |
|---|---|
| In Press | No |
| Year | 1983 |
| Title | Technetium and uranium: Sorption by and plant uptake from peat and sand |
| Authors | Sheppard, MI; Vandergraaf, TT; Thibault, DH; Reid, JA |
| Journal | Health Physics |
| Volume | 44 |
| Issue | 6 |
| Page Numbers | 635-643 |
| Abstract | The objectives of this study were to compare the effects of technetium and uranium on the yield and uptake, and to identify the organ of accumulation, of an edible leafy vegetable growing in sandy and peaty soils. In sand, where the soil's sorption capacity is negligible, technetium uptake is four orders of magnitude higher than from peat, suggesting no plant mediation of uptake and thus a constant concentration factor (>50) in an oxidizing environment where technetium is continuously supplied. The technetium is predominantly translocated to the shoots. When soil fixation occurs, as in peat, this becomes the controlling factor in the plant uptake of technetium. In the case of uranium, plant mediation is more significant. Uranium uptake by Swiss chard is up to 80 times higher from sand than from peat. The uranium is restricted to the root system and may only be precipitated on the outer root membrane and may not accumulate in the roots. |
| Doi | 10.1097/00004032-198306000-00004 |
| Pmid | 6853186 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Is Qa | No |