Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
053	CIVIL ENGINEERS	368
073	CHEMISTS, EXCEPT BIOCHEMISTS	1,251	244
159	TEACHERS, N.E.C.	2
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	92	92
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	17,319	8,562
224	CHEMICAL TECHNICIANS	635	241
225	SCIENCE TECHNICIANS, N.E.C.	1,779	474
235	TECHNICIANS, N.E.C.	292	99
243	SUPERVISORS AND PROPRIETORS, SALES OCCUPATIONS	322
307	SUPERVISORS; DISTRIBUTION, SCHEDULING, AND ADJUSTING CLERKS	125
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	309
365	STOCK AND INVENTORY CLERKS	173
366	METER READERS	1,077
379	GENERAL OFFICE CLERKS	362
453	JANITORS AND CLEANERS	15,530	419
505	AUTOMOBILE MECHANICS	6,884
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	11,264	539
514	AUTOMOBILE BODY AND RELATED REPAIRERS	1,406
515	AIRCRAFT MECHANICS, EXC. ENGINE	634
516	HEAVY EQUIPMENT MECHANICS	836
518	INDUSTRIAL MACHINERY REPAIRERS	6,168	18
519	MACHINERY MAINTENANCE OCCUPATIONS	395
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	116	19
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	12
538	OFFICE MACHINE REPAIRERS	2,169
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	2,515
544	MILLWRIGHTS	78
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	5,222	472
549	NOT SPECIFIED MECHANICS AND REPAIRERS	13,881	309
557	SUPERVISORS; PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	3,250
558	SUPERVISORS, N.E.C.	428
563	BRICKMASONS AND STONEMASONS	1,388
567	CARPENTERS	5,139
575	ELECTRICIANS	1,446
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	7,979
597	STRUCTURAL METAL WORKERS	664
633	SUPERVISORS, PRODUCTION OCCUPATIONS	3,246
634	TOOL AND DIE MAKERS	4,081
637	MACHINISTS	13,482	606
643	BOILERMAKERS	48
653	SHEET METAL WORKERS	318
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	828	422
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	363	10
689	INSPECTORS, TESTERS, AND GRADERS	105
696	STATIONARY ENGINEERS	96
704	LATHE AND TURNING MACHINE OPERATORS	1,723
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	5,977	5,039
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	100
717	FABRICATING MACHINE OPERATORS, N.E.C.	1,165	6
719	MOLDING AND CASTING MACHINE OPERATORS	907	581
724	HEAT TREATING EQUIPMENT OPERATORS	2
727	SAWING MACHINE OPERATORS	861
734	PRINTING MACHINE OPERATORS	648
736	TYPESETTERS AND COMPOSITORS	1,051
755	EXTRUDING AND FORMING MACHINE OPERATORS	128
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	3,817
769	SLICING AND CUTTING MACHINE OPERATORS	599	140
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	5,192	951
779	MACHINE OPERATORS, NOT SPECIFIED	2,889
783	WELDERS AND CUTTERS	2,956
785	ASSEMBLERS	15,087	8,354
789	HAND PAINTING, COATING, AND DECORATING OCCUPATIONS	59
804	TRUCK DRIVERS, HEAVY	1,212
844	OPERATING ENGINEERS	2,199
849	CRANE AND TOWER OPERATORS	29
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	243
869	CONSTRUCTION LABORERS	3,050
873	PRODUCTION HELPERS	349
885	GARAGE AND SERVICE STATION RELATED OCCUPATIONS	684
889	LABORERS, EXCEPT CONSTRUCTION	4,829	106
TOTAL		189,831	27,701

*(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.