Cytogenetic testing of heavy metal and cyanide contaminated river waters in a mining region of Southwest Bulgaria

摘要

Using micronuclei and anaphase analyses and through calculating mitotic and phase indices, a cytogenetic study was conducted on heavy metal- and cyanide contaminated river waters from the region of Panagjurishte – Southwest Bulgaria. Allium cepa was used as a test-object in vivo. The data obtained showed a decreased cell reproduction and the presence of deviations from the normal mitosis – micronuclei, anaphase- and telophase bridges and fragments, lagging chromosomes and a C-mitotic effect. The cytogenetic analyses used proved to be effective and suitable for biomonitoring of heavy metal- and cyanide contaminated waters.