Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
078	BIOLOGICAL AND LIFE SCIENTISTS	60	36
083	MEDICAL SCIENTISTS	238	103
105	THERAPISTS, N.E.C.	98	77
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	4,634	3,928
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	562	281
216	ENGINEERING TECHNICIANS, N.E.C.	1,364	1,105
224	CHEMICAL TECHNICIANS	285	76
356	MAIL CLERKS, EXC. POSTAL SERVICE	19	19
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	80
379	GENERAL OFFICE CLERKS	206	169
446	HEALTH AIDES, EXCEPT NURSING	317	244
453	JANITORS AND CLEANERS	3,233	46
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	468
515	AIRCRAFT MECHANICS, EXC. ENGINE	2,781
516	HEAVY EQUIPMENT MECHANICS	770
544	MILLWRIGHTS	45
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	181	62
549	NOT SPECIFIED MECHANICS AND REPAIRERS	4,877	302
567	CARPENTERS	285	10
575	ELECTRICIANS	76	48
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	741
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	27
596	SHEETMETAL DUCT INSTALLERS	395	17
633	SUPERVISORS, PRODUCTION OCCUPATIONS	199	92
637	MACHINISTS	145
653	SHEET METAL WORKERS	86
707	ROLLING MACHINE OPERATORS	551
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	83
719	MOLDING AND CASTING MACHINE OPERATORS	923	770
723	METAL PLATING MACHINE OPERATORS	140	100
734	PRINTING MACHINE OPERATORS	174	87
754	PACKAGING AND FILLING MACHINE OPERATORS	23	23
756	MIXING AND BLENDING MACHINE OPERATORS	991	38
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	693	600
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	4,946	266
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	31
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	280	280
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,426	133
779	MACHINE OPERATORS, NOT SPECIFIED	2,373
783	WELDERS AND CUTTERS	225
785	ASSEMBLERS	910	43
793	HAND ENGRAVING AND PRINTING OCCUPATIONS	459
833	MARINE ENGINEERS	2,632
873	PRODUCTION HELPERS	584
878	MACHINE FEEDERS AND OFFBEARERS	153
889	LABORERS, EXCEPT CONSTRUCTION	527	7
TOTAL		40,295	8,961

*(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.