Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	1,441	432
083	MEDICAL SCIENTISTS	22	14
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	632	545
224	CHEMICAL TECHNICIANS	413	120
446	HEALTH AIDES, EXCEPT NURSING	28	21
453	JANITORS AND CLEANERS	127
519	MACHINERY MAINTENANCE OCCUPATIONS	22
549	NOT SPECIFIED MECHANICS AND REPAIRERS	470
567	CARPENTERS	57
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	1,139	445
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	44
593	INSULATION WORKERS	44
637	MACHINISTS	57
653	SHEET METAL WORKERS	75
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	79
723	METAL PLATING MACHINE OPERATORS	193
756	MIXING AND BLENDING MACHINE OPERATORS	420
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	557
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	18
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	158
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	9
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	101
TOTAL		6,171	1,577

*(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.