A. Brogger et al., CHROMOSOME ANALYSIS OF PERIPHERAL LYMPHOCYTES FROM PERSONS EXPOSED TORADIOACTIVE FALLOUT IN NORWAY FROM THE CHERNOBYL ACCIDENT, Mutation research. Section on environmental mutagenesis and related subjects, 361(2-3), 1996, pp. 73-79
Chromosome analysis of peripheral lymphocytes from two Norwegian popul
ations (44 reindeer herding South samis from Roros and Snasa, 12 sheep
farmers from Valdres) exposed to fallout from the Chernobyl accident
were made. The doses from caesium through the years 1987-1991 were cal
culated based on whole-body measurements of Cs-134 and Cs-137 giving a
total cumulative mean internal dose of 5.54 mSv for the total group o
f 56 persons. Chromosome aberrations were within the normal range when
compared with historical controls with the exception of dicentrics (0
.3% per cell, which is a 10-fold increase) and rings (0.07% per cell).
A dose-dependent increase in dicentrics and rings based on caesium ex
posure was not observed.