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Physical dosimetry and biological indicators of carcinogenic risk in a cohort of persons exposed to unhealthy ecological factors following the Chernobyl Nuclear Power Plant accident.

Authors
  • Orel, V E
  • Tereschenki, V M
  • Czyatkovskaya, N N
  • Mazepa, M G
  • Buzunov, V A
Type
Published Article
Journal
Archives of Environmental Health An International Journal
Publisher
Informa UK (Taylor & Francis)
Publication Date
Jan 01, 1998
Volume
53
Issue
6
Pages
398–404
Identifiers
PMID: 9886158
Source
Medline
License
Unknown

Abstract

The April 1986 Chernobyl Nuclear Power Plant accident caused ecological changes in the Ovruch State forests in the Zhytomir oblast in the Ukraine. The highest radioactivity existed in moss, followed by the pine-forest substrate and soil. During 1984-1985, the pine needles were primarily surface contaminated, whereas during 1986-1988, they were contaminated secondarily. Radioactivity in air was highest (1.07+/-0.185 Bq/l) during dry and sunny weather and when trees were felled; the lowest levels (0.196+/-0.044 Bq/l) occurred during periods of stable snow coverage. Between 1987 and 1989 (i.e., after the Chernobyl accident), the caesium levels in forestry employees exceeded by 13.9-fold the average levels found in the Ukrainian Polessje population. Ovruch forest guards and woodcutters had the highest effective equivalent doses of radiation, and they therefore exhibited the highest carcinogenic risk.

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