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沥青因具有防水、防腐、绝缘、粘固性强等特性,能作为建筑、炼钢、铺路、交通运输、电器绝缘等方面的原料。所以,从事这些工作的人员容易发生沥青中毒。沥青有煤焦油沥青、石油沥青、页岩沥青、天然沥青。这些沥青均有较大的毒性,其中以煤焦油沥青毒性最强,危害最大,人体如过多接触沥青物质或吸入其烟气,就
Asphalt has a waterproof, anti-corrosion, insulation, strong adhesive properties, can be used as construction, steelmaking, paving, transportation, electrical insulation and other raw materials. As a result, bitumen poisoning is apt to occur in the personnel engaged in these tasks. Asphalt coal tar pitch, petroleum bitumen, shale bitumen, natural bitumen. These bitumen have greater toxicity, of which the most toxic coal tar pitch, the most harmful, the human body, such as excessive exposure to bitumen or inhalation of flue gas,