Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
036	INSPECTORS AND COMPLIANCE OFFICERS, EXC. CONSTRUCTION	32	32
048	CHEMICAL ENGINEERS	13
059	ENGINEERS, N.E.C.	190	84
084	PHYSICIANS	137	26
095	REGISTERED NURSES	32,167	31,471
096	PHARMACISTS	1,783	896
103	PHYSICAL THERAPISTS	41	41
206	RADIOLOGIC TECHNICIANS	212	115
207	LICENSED PRACTICAL NURSES	1,595	1,595
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	260	140
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	2
216	ENGINEERING TECHNICIANS, N.E.C.	219	57
224	CHEMICAL TECHNICIANS	3,716	1,530
225	SCIENCE TECHNICIANS, N.E.C.	1,185	474
235	TECHNICIANS, N.E.C.	1,429	1,022
335	FILE CLERKS	104
368	WEIGHERS, MEASURERS, AND CHECKERS	57
446	HEALTH AIDES, EXCEPT NURSING	824	371
447	NURSING AIDES, ORDERLIES, AND ATTENDANTS	4,414	4,342
453	JANITORS AND CLEANERS	2,521
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	884
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	39
549	NOT SPECIFIED MECHANICS AND REPAIRERS	133
563	BRICKMASONS AND STONEMASONS	12,296
565	TILE SETTERS, HARD AND SOFT	5,655
575	ELECTRICIANS	29
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	18
593	INSULATION WORKERS	6,334	618
595	ROOFERS	1,851
596	SHEETMETAL DUCT INSTALLERS	923
633	SUPERVISORS, PRODUCTION OCCUPATIONS	1,399
637	MACHINISTS	880
643	BOILERMAKERS	91
653	SHEET METAL WORKERS	755
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	995	42
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	1,643	164
696	STATIONARY ENGINEERS	348
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	1,081	216
724	HEAT TREATING EQUIPMENT OPERATORS	579
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	306
756	MIXING AND BLENDING MACHINE OPERATORS	2,668	44
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	236
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	109
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	1,408
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	891	38
779	MACHINE OPERATORS, NOT SPECIFIED	541
783	WELDERS AND CUTTERS	48
785	ASSEMBLERS	36
789	HAND PAINTING, COATING, AND DECORATING OCCUPATIONS	7	7
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	6
804	TRUCK DRIVERS, HEAVY	268
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	25
869	CONSTRUCTION LABORERS	15,571
888	HAND PACKERS AND PACKAGERS	1,179	224
889	LABORERS, EXCEPT CONSTRUCTION	4,611	91
TOTAL		114,743	43,640

*(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.