Chromosome analysis of peripheral lymphocytes from persons exposed to radioactive fallout in Norway from the Chernobyl accident

Mutat Res. 1996 Dec 12;361(2-3):73-9. doi: 10.1016/s0165-1161(96)90241-1.


Chromosome analysis of peripheral lymphocytes from two Norwegian populations (44 reindeer herding South samis from Røros and Snåsa, 12 sheep farmers from Valdres) exposed to fallout from the Chernobyl accident were made. The doses from caesium through the years 1987-1991 were calculated based on whole-body measurements 134Cs and 137Cs giving a total cumulative mean internal dose of 5.54 mSv for the total group of 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 exposure was not observed.

MeSH terms

  • Air Pollutants, Radioactive / analysis
  • Air Pollutants, Radioactive / toxicity*
  • Body Burden
  • Cesium Radioisotopes / analysis
  • Chromosome Aberrations*
  • Female
  • Humans
  • Male
  • Norway
  • Power Plants*
  • Radiation Dosage
  • Radioactive Hazard Release*
  • Ukraine


  • Air Pollutants, Radioactive
  • Cesium Radioisotopes