Search - Number 3 - HYDROBIONTS OF THE CHERNOBYL NPP EXCLUSION ZONE: DOSE RATES AND CYTOGENETIC EFFECTS

HYDROBIONTS OF THE CHERNOBYL NPP EXCLUSION ZONE: DOSE RATES AND CYTOGENETIC EFFECTS
Cover not present HYDROBIONTS OF THE CHERNOBYL NPP EXCLUSION ZONE: DOSE RATES AND CYTOGENETIC EFFECTS
Category: Number 3
Publication: 3
Summary

During 2000 - 2004 the values of the absorbed dose for hydrobionts from reservoirs within the Chernobyl NPP exclusion zone were found to be in the range from 1,8ยท10-3 to 3.4 Gy year-1. The highest value was found for hydrobionts from lakes within the embankment territory on the left-bank flood plain of Pripyat River, the lowest - for specimens from the running water objects and lakes of Kiev City. The high level of chromosome aberration in of snail's cells from water objects within the Chernobyl exclusion zone has been registered in comparison with Goloseevo lakes. The molluscs from Dalekoye-1 Lake and Glubokoye Lake were characterised by the maximal rate of chromosome aberration - about 20-25 %, that in 10 times exceeds a level spontaneous mutagenesis for hydrobionts. A little bit less rate is registered for snails from Azbuchin Lake and Yanovsky Creek. The chromosome aberration rate of molluscs from Goloseevo lakes (Kiev) on average was about 1.5 %, and the maximal rate did not exceed 2.5 %.