Workplace benzene occupational exposure and carcinogenic risk analysis method

[0052] For the technical content and method implementation steps of occupational exposure to benzene and carcinogenic risk analysis in the workplace, see image 3 .

[0053] Case Study of Occupational Exposure to Benzene

[0054] 1. Risk identification

[0055] (1) Occupational hazard factors and exposure routes

[0056] A large-scale petrochemical company newly built a 500,000-ton / year styrene production plant, using the traditional process of catalytic dehydrogenation of ethylbenzene to produce styrene. The main raw materials for production are ethylene and benzene, and there are a large amount of benzene and ethylene in each process unit. , ethylbenzene and other toxic and harmful substances.

[0057] Styrene production is carried out in an open-air closed environment, with mature and advanced production technology and a high degree of automation, which has caused a lot of misunderstanding in people's understanding. The dose is very small, the degree of exposure will be...