Purpose: To study the genotoxicity of non-volatile organic chemicals in Huai river water to organism. Methods: zool of water sample was collecfed from Huai river source water、clarified filtration water、chlorinated tap water and reservoir's water, respectively. After being adsorpted and concentrated, water samples were administrated by gavage into mouse stomach. The mutagenicity was studied by means of micronucleus test in mouse thoracic bone-marrow polychromatic erythrocyte (PCE) and the genotoxicity by mea...