GENERAL BUILDING CONTRACTORS (SIC 15)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	118
783	WELDERS AND CUTTERS	1,225
SUBTOTAL		1,343
HEAVY CONSTRUCTION CONTRACTORS (SIC 16)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
516	HEAVY EQUIPMENT MECHANICS	156
853	EXCAVATING AND LOADING MACHINE OPERATORS	781
855	GRADER, DOZER, AND SCRAPER OPERATORS	468
SUBTOTAL		1,405
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
549	NOT SPECIFIED MECHANICS AND REPAIRERS	13
SUBTOTAL		13
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	1,564
785	ASSEMBLERS	145
SUBTOTAL		1,709
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
723	METAL PLATING MACHINE OPERATORS	18	12
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	12
SUBTOTAL		30	12
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	14
SUBTOTAL		14
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	45
SUBTOTAL		45
TOTAL		4,559	12
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.