WATER TRANSPORTATION (SIC 44)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	244
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	488
549	NOT SPECIFIED MECHANICS AND REPAIRERS	610
567	CARPENTERS	1,708	244
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	1,708
783	WELDERS AND CUTTERS	366
889	LABORERS, EXCEPT CONSTRUCTION	610
SUBTOTAL		5,734	244
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	5,260	2,954
SUBTOTAL		5,260	2,954
HEALTH SERVICES (SIC 80)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
099	OCCUPATIONAL THERAPISTS	300	197
103	PHYSICAL THERAPISTS	275	253
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	1,726	1,220
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	195	120
216	ENGINEERING TECHNICIANS, N.E.C.	1,483	918
444	MISCELLANEOUS FOOD PREPARATION OCCUPATIONS	1,430	1,314
446	HEALTH AIDES, EXCEPT NURSING	2,337	1,692
449	MAIDS AND HOUSEMEN	1,660	968
SUBTOTAL		9,406	6,682
MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS (SIC 84)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	368
SUBTOTAL		368
TOTAL		20,768	9,880
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.