SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	792
16	HEAVY CONSTRUCTION CONTRACTORS	2,824
17	SPECIAL TRADE CONTRACTORS	8,595
20	FOOD AND KINDRED PRODUCTS	425
23	APPAREL AND OTHER TEXTILE PRODUCTS	227
24	LUMBER AND WOOD PRODUCTS	3,058	118
26	PAPER AND ALLIED PRODUCTS	338
27	PRINTING AND PUBLISHING	3,125	1,292
28	CHEMICALS AND ALLIED PRODUCTS	493
29	PETROLEUM AND COAL PRODUCTS	140	56
30	RUBBER AND MISC. PLASTICS PRODUCTS	40,339	21,772
32	STONE, CLAY, AND GLASS PRODUCTS	1,405
33	PRIMARY METAL INDUSTRIES	241
34	FABRICATED METAL PRODUCTS	3,915	401
35	MACHINERY, EXCEPT ELECTRICAL	5,802	348
36	ELECTRIC AND ELECTRONIC EQUIPMENT	4,304	2,522
37	TRANSPORTATION EQUIPMENT	2,603	148
38	INSTRUMENTS AND RELATED PRODUCTS	6,044	3,924
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	1,333	843
42	TRUCKING AND WAREHOUSING	669
44	WATER TRANSPORTATION	990
45	TRANSPORTATION BY AIR	8,943	57
48	COMMUNICATION	2,989
49	ELECTRIC, GAS, AND SANITARY SERVICES	793
50	WHOLESALE TRADE - DURABLE GOODS	17
51	WHOLESALE TRADE - NONDURABLE GOODS	2,156	431
80	HEALTH SERVICES	630	36
TOTAL		103,190	31,948

*(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.