The evaluation of exposure to some carcinogenic chemicals and seemingly carcinogenic chemicals, e.g. mist of sulphuric acid, benzene, chromium (VI) and formaldehyde among employees of some departments of a chemical plant was carried out. The study was carried out in the years 1999--2002. The analysis of concentration of the studied substances revealed the highest risk of exposure in the Cyclohexanon Department and The Maintenance Services Department in Caprolactam department. No direct relationship between the exposure to the studied chemicals and the development of cancer in the working population was found.
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