OIL AND GAS EXTRACTION (SIC 13)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
614	DRILLERS, OIL WELL	4,694
617	MINING OCCUPATIONS, N.E.C.	968
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	1,290
SUBTOTAL		6,952
SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
653	SHEET METAL WORKERS	771
SUBTOTAL		771
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
048	CHEMICAL ENGINEERS	23
073	CHEMISTS, EXCEPT BIOCHEMISTS	151
224	CHEMICAL TECHNICIANS	151	13
225	SCIENCE TECHNICIANS, N.E.C.	101	101
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	26
575	ELECTRICIANS	13
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	19
633	SUPERVISORS, PRODUCTION OCCUPATIONS	55
637	MACHINISTS	6
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	2,363
783	WELDERS AND CUTTERS	19
SUBTOTAL		2,927	114
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	7
056	INDUSTRIAL ENGINEERS	81
073	CHEMISTS, EXCEPT BIOCHEMISTS	336
224	CHEMICAL TECHNICIANS	1,540	431
225	SCIENCE TECHNICIANS, N.E.C.	322	242
453	JANITORS AND CLEANERS	5,880	351
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	795
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,654
567	CARPENTERS	403
575	ELECTRICIANS	725
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	1,449
593	INSULATION WORKERS	483	161
633	SUPERVISORS, PRODUCTION OCCUPATIONS	1,025
637	MACHINISTS	966
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	3,434
756	MIXING AND BLENDING MACHINE OPERATORS	183	7
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	679
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	403
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	28
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	10,363	81
783	WELDERS AND CUTTERS	725
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	322
878	MACHINE FEEDERS AND OFFBEARERS	322
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	878
SUBTOTAL		33,003	1,273
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	14	2
SUBTOTAL		14	2
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
785	ASSEMBLERS	599	88
SUBTOTAL		599	88
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
677	OPTICAL GOODS WORKERS	249
SUBTOTAL		249
ELECTRIC, GAS, AND SANITARY SERVICES (SIC 49)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
327	ORDER CLERKS	1,579
366	METER READERS	263	263
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	3,953
SUBTOTAL		5,795	263
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
225	SCIENCE TECHNICIANS, N.E.C.	6,372	889
SUBTOTAL		6,372	889
HEALTH SERVICES (SIC 80)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
095	REGISTERED NURSES	70	70
SUBTOTAL		70	70
TOTAL		56,752	2,699
RELATED PAGES: Estimates by SIC, Estimates by Occupation

*(1) The estimates for each occupation apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC where the agent was observed. Not all SICs were surveyed, and not all agents were observed in all surveyed SICs. (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.