What is already known about this topic?: Benzene is classified as a Class I human carcinogen by the International Agency for Research on Cancer. Long-term exposure to benzene increases the risk of chronic benzene poisoning and leukemia. However, benzene is still widely used in the manufacturing industry.
What is added by this report?: The scale of enterprises most exposed to benzene was small enterprises, and joint-equity enterprises had the highest number that exceeded the permissible concentration-time weighted average.
What are the implications for public health practice?: It is still necessary to strengthen the monitoring of benzene concentrations in the manufacturing industry, especially in small enterprises. The occupational exposure limit of benzene should be appropriately reduced.
Keywords: benzenes; concentrations; distributions; industry.
Copyright and License information: Editorial Office of CCDCW, Chinese Center for Disease Control and Prevention 2021.