Study of the transfer of radionuclides in trees at a forest site
- 1. Laboratoire de Radiochimie, Faculte des Sciences, Universite de Nice-Sophia Antipolis, Nice (France)
Description
The transfer of radionuclides such as 137Cs and 90Sr from soil to trees (conifers) was studied in a forest area, the Boreon massif, 30 km north of Nice in South Eastern France. This area has been highly contaminated after the Chernobyl accident. Besides the γ-emitting fission products, the α-emitters 238Pu and 239+240Pu and the pure β-emitter 90Sr were measured in different parts of the studied trees (roots, branches, twigs, etc.). As has already been reported by other authors, the radionuclide activities in the tree rings are not correlated with the fallout deposition. They were found varying according to the sap flux in the tree and higher in sapwood than in heartwood. For cesium the root absorption was found to be lower than the atmospheric deposition. Soil-to-plant concentration factors were calculated for 137Cs, 90Sr and 239+240Pu
Additional details
Publishing Information
- Journal Title
- Science of the Total Environment
- Journal Volume
- 173
- Journal Issue
- 1-6
- Journal Page Range
- p. 369-373.
- ISSN
- 0048-9697
- CODEN
- STENDL
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 27010508
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Descriptors DEI
- CESIUM 137; CHERNOBYLSK-4 REACTOR; CONIFERS; FALLOUT DEPOSITS; FORESTS; FRANCE; PLUTONIUM 238; PLUTONIUM 239; PLUTONIUM 240; RADIOECOLOGICAL CONCENTRATION; RADIOISOTOPES; RADIONUCLIDE MIGRATION; ROOT ABSORPTION; SOILS; STRONTIUM 90; TREE RINGS
- Descriptors DEC
- ABSORPTION; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; DEVELOPED COUNTRIES; ECOLOGICAL CONCENTRATION; ENRICHED URANIUM REACTORS; ENVIRONMENTAL TRANSPORT; EUROPE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FALLOUT; GRAPHITE MODERATED REACTORS; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; ISOTOPES; LWGR TYPE REACTORS; MASS TRANSFER; NUCLEI; ODD-EVEN NUCLEI; PINOPHYTA; PLANTS; PLUTONIUM ISOTOPES; POWER REACTORS; REACTORS; SILICON 32 DECAY RADIOISOTOPES; SORPTION; SPONTANEOUS FISSION RADIOISOTOPES; STRONTIUM ISOTOPES; THERMAL REACTORS; UPTAKE; WATER COOLED REACTORS; WESTERN EUROPE; YEARS LIVING RADIOISOTOPES