普遍认为,接触煤焦油、焦炉辐散物以及类似煤燃或碳化过程的生产有增加患肺癌的危险和患肾、乳腺等其它肿瘤的可能。Kennaway认为,在煤焦油里苯井(a)芘是一个致癌的因子。在哺乳细胞上已证实,多数化学和物理因子能引起SCEs。假如焦炉辐散物、 It is generally accepted that exposure to coal tar, coke oven emissions, and similar coal combustion or carbonization processes may increase the risk of developing lung cancer and the potential for other tumors such as kidney and breast. Kennaway believes that benzene pyrene (Pyrene) is a carcinogenic factor in coal tar. It has been demonstrated on mammalian cells that most chemical and physical factors cause SCEs. If the coke oven radiation,