SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	11,276	79
16	HEAVY CONSTRUCTION CONTRACTORS	3,799
17	SPECIAL TRADE CONTRACTORS	11,364
20	FOOD AND KINDRED PRODUCTS	23,026	2,044
21	TOBACCO MANUFACTURERS	9
22	TEXTILE MILL PRODUCTS	409	106
24	LUMBER AND WOOD PRODUCTS	104
26	PAPER AND ALLIED PRODUCTS	3,683
27	PRINTING AND PUBLISHING	2,293	36
28	CHEMICALS AND ALLIED PRODUCTS	10,084	226
29	PETROLEUM AND COAL PRODUCTS	1,755
30	RUBBER AND MISC. PLASTICS PRODUCTS	1,368
32	STONE, CLAY, AND GLASS PRODUCTS	1,615	17
33	PRIMARY METAL INDUSTRIES	5,642
34	FABRICATED METAL PRODUCTS	16,744	24
35	MACHINERY, EXCEPT ELECTRICAL	8,084
36	ELECTRIC AND ELECTRONIC EQUIPMENT	932
37	TRANSPORTATION EQUIPMENT	9,049	100
38	INSTRUMENTS AND RELATED PRODUCTS	3,374
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	101
40	RAILROAD TRANSPORTATION	44
44	WATER TRANSPORTATION	10,650	88
45	TRANSPORTATION BY AIR	63
49	ELECTRIC, GAS, AND SANITARY SERVICES	3,614
50	WHOLESALE TRADE - DURABLE GOODS	825
72	PERSONAL SERVICES	32
73	BUSINESS SERVICES	1,600	24
76	MISCELLANEOUS REPAIR SERVICES	276
80	HEALTH SERVICES	1,202	7
TOTAL		133,102	2,751

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) 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.