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Bachhuber, H. ; Bunzl, K.W. ; Schimmack, W.

Spatial variability of fallout-137Cs in the soil of a cultivated field.

Environ. Monit. Assess. 8, 93-101 (1987)
Open Access Green as soon as Postprint is submitted to ZB.
To obtain information on the spatial variability of fallout 137Cs in the soil of a small area, the activity concentration of this radionuclide was determined in 100 soil samples, taken along the two diagonals of a cultivated field (150 x 100 m). The results show that the spatial distribution of 137Cs in this field is at random. The frequency distribution of the values is skewed to the right, but not log-normal. The median activity concentration observed was 7.45 Bq kg-1 dry soil, the values ranging from 4.8 - 15 Bq kg-1. The spatial variability, as characterized by the relative decile deviation was 26%. If one tolerates for the establishment of baselines of global fallout 137Cs in the soil an error in the mean activity concentration of 10% (20%) at the 95% confidence level, the minimum number of soil samples to be taken can be estimated as 14 (4). The total deposition of 137Cs on the soil surface by fallout was determined as 3.3±0.4 kBq m-2.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
ISSN (print) / ISBN 0167-6369
e-ISSN 1573-2959
Journal Environmental Monitoring and Assessment
Quellenangaben Volume: 8, Issue: 1, Pages: 93-101 Article Number: , Supplement: ,
Publisher Springer
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute of Radiation Protection (ISS)