苯能引起人患白血病已得到了比较肯定的证明。接触苯的人员其外周淋巴细胞常规及分带染色体改变已有不少研究,这些研究一致表明这类人员染色体畸变率有显著增加。近年来,国外这类研究大多数集中于苯及其代谢物或衍生物的 Benzene can cause human leukemia has been a more positive proof. There have been many studies on the routine and chromosomal changes of peripheral lymphocytes in persons exposed to benzene. These studies have consistently demonstrated a significant increase in the rate of chromosomal aberrations in this population. In recent years, most of these foreign studies have focused on benzene and its metabolites or derivatives.