亚硝化煤尘提取物的致突变性研究雷玲，祝寿芬，韩光，郭贵文国内外实验室研究均发现在体外致突变试验中煤尘亚硝化物显示了强致突变性［１～４］，而体内试验相对较少，并存在两方面的特点，一是均以煤尘体外亚硝化物染毒，未见给予煤尘和亚硝化因子两种前体物的实验研究... Study on Mutagenicity of Nitrosated Coal Dust Extracts Lei Ling, Zhu Shoufen, Han Guang, Guo Guiwen In domestic and foreign research laboratories, it has been found that the mutagenicity of coal dust nitrosate shows strong mutagenicity in in vitro mutagenic experiments [1 ~ 4] , While the in vivo test is relatively small, and there are two aspects of the characteristics: one is to use both in vitro and in vitro nitrosation of coal dust poisoning, no experimental study of coal dust and nitrosation factor two precursors ...