To validate and to estimate the chemical hazard play a very important role to environment and human health. The detection of many synthetic chemicals used in industry that may pose a genetic hazard in our environment is of great concern at present. Since these substances are not limited to the original products, and enter the environment, they have become widespread environmental pollutants, thus leading to a variety of chemicals that possibly threaten the public health. In this respect, the clastogenicily of 8 synthetic chemicals was evaluated with bone marrow micronucleus assay in mice. The positive control, mitomycin C (2mg/kg, i.p.) revealed significant induction ratio of percentage of micronucleated polychromatic erythrocytes/1,000 polychromatic erythrocytes compared to carboxymethylcellulose control. The chemicals with relatively high LD_(50) value such as phenylisocyanate(CAS No. 103-71-9), m-aminochlorobenzene(CAS No. 108-42-9) and 2-chloro-4-nitroaniline(CAS No. 121-87-9) revealed no significant inducion of micronucleated polychromatic erythrocytes in mice. From this results. 8 synthetic chemicals widely used in industry have revealed no significant micronucleus induction of clastogenicity in mice in this experiment.
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