众所周知,皮肤癌常与职业有关。而职业性皮肤癌是职业性肿瘤中发现最早,数目最多的一种,危害极大。在工业化学物质中,能引起皮肤癌者主要有煤焦油、沥青、木馏油、页岩油、杂酚油、石腊、氯丁二烯、砷化物等。在煤焦油中,主要是苯芘,量也较大,其致癌力最强。此外,还有少量致癌性较弱的多环烃。打扫烟囱工人 As we all know, skin cancer often associated with occupations. The occupational skin cancer is the earliest found in occupational tumors, the largest number, a great harm. In industrial chemicals, can cause skin cancer are mainly coal tar, asphalt, creosote, shale oil, creosote, paraffin, chloroprene, arsenide and so on. In coal tar, mainly pyrene, the amount is larger, its most carcinogenic. In addition, there is a small amount of polycyclic hydrocarbons that are less carcinogenic. Cleaning chimney workers