Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
055	ELECTRICAL AND ELECTRONIC ENGINEERS	6,525
069	PHYSICISTS AND ASTRONOMERS	1,368	829
073	CHEMISTS, EXCEPT BIOCHEMISTS	474	301
075	GEOLOGISTS AND GEODESISTS	28
083	MEDICAL SCIENTISTS	119	70
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	1,675	1,144
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	1,625	1,134
216	ENGINEERING TECHNICIANS, N.E.C.	3,177	399
223	BIOLOGICAL TECHNICIANS	901	307
224	CHEMICAL TECHNICIANS	6,450	1,968
225	SCIENCE TECHNICIANS, N.E.C.	185	12
235	TECHNICIANS, N.E.C.	1,335	203
365	STOCK AND INVENTORY CLERKS	429	427
446	HEALTH AIDES, EXCEPT NURSING	565	282
453	JANITORS AND CLEANERS	6,721	389
486	GROUNDSKEEPERS AND GARDENERS, EXCEPT FARM	4,088
505	AUTOMOBILE MECHANICS	4,683
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	3,501
514	AUTOMOBILE BODY AND RELATED REPAIRERS	3,054
515	AIRCRAFT MECHANICS, EXC. ENGINE	151
516	HEAVY EQUIPMENT MECHANICS	1,830
518	INDUSTRIAL MACHINERY REPAIRERS	951
519	MACHINERY MAINTENANCE OCCUPATIONS	112
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	315
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,303
558	SUPERVISORS, N.E.C.	904
563	BRICKMASONS AND STONEMASONS	544	79
567	CARPENTERS	1,084
575	ELECTRICIANS	688
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	318	297
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	101
588	CONCRETE AND TERRAZZO FINISHERS	589
593	INSULATION WORKERS	44
596	SHEETMETAL DUCT INSTALLERS	395	17
617	MINING OCCUPATIONS, N.E.C.	7,885
633	SUPERVISORS, PRODUCTION OCCUPATIONS	938	46
637	MACHINISTS	2,433
653	SHEET METAL WORKERS	3,132	129
689	INSPECTORS, TESTERS, AND GRADERS	2	2
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	26
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	14
717	FABRICATING MACHINE OPERATORS, N.E.C.	57
719	MOLDING AND CASTING MACHINE OPERATORS	79	35
753	CEMENTING AND GLUING MACHINE OPERATORS	646	530
754	PACKAGING AND FILLING MACHINE OPERATORS	53
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	3,550	392
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	317	43
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,320	30
779	MACHINE OPERATORS, NOT SPECIFIED	1,056
783	WELDERS AND CUTTERS	978
785	ASSEMBLERS	4,589	1,355
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	1,127	134
797	PRODUCTION TESTERS	2,442	698
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	360
869	CONSTRUCTION LABORERS	2,953
878	MACHINE FEEDERS AND OFFBEARERS	295
888	HAND PACKERS AND PACKAGERS	331	285
889	LABORERS, EXCEPT CONSTRUCTION	547	91
TOTAL		92,428	11,630

*(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.