National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by Occupation*

Agent Name BENZENE, TETRACHLORO-
CAS # 12408-10-5
RTECS #
Agent Code X4601

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
048 CHEMICAL ENGINEERS 16  
073 CHEMISTS, EXCEPT BIOCHEMISTS 13 3
224 CHEMICAL TECHNICIANS 180 6
535 CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS 16  
575 ELECTRICIANS 13  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 61  
637 MACHINISTS 13  
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 460 77
783 WELDERS AND CUTTERS 42  
TOTAL 814 86

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.

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