Studies of131I,137Cs and103Ru in milk, meat and vegetables in North East Scotland following the Chernobyl accident

  • Martin C
  • Heaton B
  • Robb J
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Abstract

Uptake and clearance of radionuclides in foodstuffs have been studied in the neighbourhood of Aberdeen in North East Scotland following the Chernobyl accident. The level of131I in goats' milk was 100-200 Bq litre-1in early May and declined with an effective half-life of 4sd3 days, but that in cows' milk was only a few Bq litre-1as most cattle were kept indoors.137Cs and103Ru activities in broccoli declined with effective half-lives of 11 and 6 days respectectively, while137Cs in grass decresed with a half-life of 22 days, the reduction appearing to show a relationship to weekly rainfall. Studies of tissues from groups of lambs initially grazed on contaminated pasture and later (a) fed indoors on concentrates or (b) continuing to graze outdoors, showed the137Cs concentrations to decline with half-lives of (a) 17 days and (b) 25 days, while the half-lives describing the reduction in total137Cs activity were (a) 20 days and (b) 35 days. © 1988.

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Authors

  • C. J. Martin

  • B. Heaton

  • J. D. Robb

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