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[Comparative informative value of chromosome aberrations and sister chromatid exchanges in the evaluation of metals in the environment].

Simultaneous recording of the frequency of chromosomal aberrations and sister chromatid exchanges supplements data on the nature of genetic disorders in the sanitary and toxicological assessment of metals polluting the environment. A obvious threshold of genetic effects of metals was not revealed in the context of chromosomal aberrations and sister chromatid exchanges. Methods for detecting the genotoxicity of metals await further search.