ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)104563
CIS number 06-179
ISSN - Serial title 1219-1221 - Central European Journal of Occupational and Environmental Medicine
Year 2003
Convention or series no.
Author(s) Zakeri F., Assaei R., Varzegar R.
Title Chromosomal aberrations in workers occupationally exposed to chronic low-level ionizing radiation
Bibliographic information 2003, Vol.9, No.1, p.33-38. 21 ref.
Abstract To determine whether prolonged or repeated low-level exposure to ionizing radiation can induce chromosomal aberrations (CAs), a large-scale cytogenetic study of 450 radiation-exposed workers (industrial radiographers and personnel from nuclear research, medical X-ray diagnostic and nuclear medicine centres) was undertaken using the yield of CAs analysed in peripheral blood lymphocyte cultures. The results were compared with those of a control group consisting of healthy persons with no history of occupational exposure to radiation. The findings showed that the incidence of all types of CAs was significantly higher in all exposed groups than in the controls. The highest rate of aberrations was found among industrial radiographers and the lowest was obtained in the personnel of medical X-ray diagnostic centres. Although the mean frequency of CAs among male workers was slightly higher than among females, no obvious trend of increased aberrations as a function of either duration of employment or age was observed. The results suggest that education and retraining of staff concerning radiation safety guidelines and regulations and the use of up-to-date equipment are major considerations in reducing the workers' radiation exposure.
Descriptors (primary) ionizing radiation; chromosome changes; long-term exposure
Descriptors (secondary) lymphocytes; Iran, Islamic Republic of; case-control study; x-rays; hospitals; blood cytology; nuclear power stations
Document type D - Periodical articles
Country / State or ProvinceIran, Islamic Republic of
Subject(s) Radiation
Broad subject area(s) Physical hazards
Browse category(ies) Antifertility and prenatal effects
Ionizing radiation
Genetic factors in reaction to exposures