Emmett E A, Bingham E M, Barkley W
Am J Ind Med. 1981;2(1):59-64. doi: 10.1002/ajim.4700020110.
The carcinogenic potentials of certain present day roofing materials and dust produced during the removal of an old coal tar pitch roof were evaluated using a mouse skin bioassay. Traditional coal tar pitch and dust from removal of an old roof were significantly more carcinogenic than coal derived roofing bitumen, but all were strongly carcinogenic. The benzo(a)pyrene concentration of these materials ranged from 0.064 to 0.08%, but each was significantly more carcinogenic than 0.1% benzo(a)pyrene alone. No tumors were produced by the application of petroleum derived roofing asphalt.
使用小鼠皮肤生物测定法评估了某些当今屋顶材料以及拆除旧煤焦油沥青屋顶时产生的粉尘的致癌潜力。传统煤焦油沥青和拆除旧屋顶产生的粉尘比煤衍生的屋顶沥青具有明显更强的致癌性，但所有这些物质都具有很强的致癌性。这些材料的苯并(a)芘浓度在0.064%至0.08%之间，但每种材料的致癌性都明显高于单独的0.1%苯并(a)芘。使用石油衍生的屋顶沥青未产生肿瘤。
