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Strontium-90 from fallout in the diet and milk of a dairy herd*

Published online by Cambridge University Press:  01 June 2009

G. W. Cox ,
A. Morgan  and
R. S. Tayler
G. W. Cox
Affiliation:
Health Physics Division, Atomic Energy Research Establishment, Harwell, Berks
A. Morgan
Affiliation:
Health Physics Division, Atomic Energy Research Establishment, Harwell, Berks
R. S. Tayler
Affiliation:
Department of Agriculture, University of Reading
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Summary

The diet and milk from a herd of dairy cows were analysed regularly for 90Sr and calcium. The ‘observed ratio’ (the ratio of 90Sr to calcium in the milk divided by the ratio of 90Sr to calcium in the diet) was found to be 0·10 against 90Sr in favour of calcium, which corresponds well with the results of other workers. The amount of 90Sr secreted into the milk was 1·2% of the total ingested. Similar values were obtained using stable strontium data.

Soil samples from different depths and herbage were taken from three areas with different cultivation histories and analysed for 90Sr and calcium. The effect of ploughing on the vertical distribution of 90Sr in soil and on the 90Sr levels in vegetation was examined.

Type
Original Articles
Information
Journal of Dairy Research , Volume 27 , Issue 1 , February 1960 , pp. 47 - 57
Copyright
Copyright © Proprietors of Journal of Dairy Research 1960

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References

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