Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
084	PHYSICIANS	19	19
095	REGISTERED NURSES	2,136	2,136
103	PHYSICAL THERAPISTS	239	230
189	PHOTOGRAPHERS	20
216	ENGINEERING TECHNICIANS, N.E.C.	476	271
224	CHEMICAL TECHNICIANS	1,433	179
235	TECHNICIANS, N.E.C.	2,465	129
309	PERIPHERAL EQUIPMENT OPERATORS	370	329
313	SECRETARIES	496	496
356	MAIL CLERKS, EXC. POSTAL SERVICE	1,226	350
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	193	52
365	STOCK AND INVENTORY CLERKS	115
366	METER READERS	2,207
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	52
453	JANITORS AND CLEANERS	6,016	38
505	AUTOMOBILE MECHANICS	2,197
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	1,153
516	HEAVY EQUIPMENT MECHANICS	850
518	INDUSTRIAL MACHINERY REPAIRERS	5,720
519	MACHINERY MAINTENANCE OCCUPATIONS	90
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	5,723
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	3,214
544	MILLWRIGHTS	234
549	NOT SPECIFIED MECHANICS AND REPAIRERS	3,267	33
557	SUPERVISORS; PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	3,250
558	SUPERVISORS, N.E.C.	275
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	21,179
633	SUPERVISORS, PRODUCTION OCCUPATIONS	710	62
637	MACHINISTS	966
653	SHEET METAL WORKERS	2,286
655	MISCELLANEOUS PRECISION METAL WORKERS	122
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	9
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	35
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	2,451
696	STATIONARY ENGINEERS	161
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	556	62
719	MOLDING AND CASTING MACHINE OPERATORS	1,787	803
734	PRINTING MACHINE OPERATORS	527	13
735	PHOTOENGRAVERS AND LITHOGRAPHERS	204
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	2,720	227
753	CEMENTING AND GLUING MACHINE OPERATORS	555	52
754	PACKAGING AND FILLING MACHINE OPERATORS	471	26
756	MIXING AND BLENDING MACHINE OPERATORS	217
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	56
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	18
765	FOLDING MACHINE OPERATORS	521	319
768	CRUSHING AND GRINDING MACHINE OPERATORS	67	67
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	332	57
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,502	41
779	MACHINE OPERATORS, NOT SPECIFIED	935	504
783	WELDERS AND CUTTERS	319
785	ASSEMBLERS	5,025	3,163
787	HAND MOLDING, CASTING, AND FORMING OCCUPATIONS	512
789	HAND PAINTING, COATING, AND DECORATING OCCUPATIONS	59
793	HAND ENGRAVING AND PRINTING OCCUPATIONS	68	68
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	123	62
844	OPERATING ENGINEERS	1,883
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	90
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	1,509	119
865	HELPERS, CONSTRUCTION TRADES	549
869	CONSTRUCTION LABORERS	941
878	MACHINE FEEDERS AND OFFBEARERS	241
888	HAND PACKERS AND PACKAGERS	744	267
TOTAL		93,886	10,172

*(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.