SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
16	HEAVY CONSTRUCTION CONTRACTORS	386
17	SPECIAL TRADE CONTRACTORS	1,033
22	TEXTILE MILL PRODUCTS	720	171
28	CHEMICALS AND ALLIED PRODUCTS	3,717	1,005
30	RUBBER AND MISC. PLASTICS PRODUCTS	16,529	7,190
32	STONE, CLAY, AND GLASS PRODUCTS	291
34	FABRICATED METAL PRODUCTS	414
35	MACHINERY, EXCEPT ELECTRICAL	1,057
36	ELECTRIC AND ELECTRONIC EQUIPMENT	758	112
37	TRANSPORTATION EQUIPMENT	3,697	318
42	TRUCKING AND WAREHOUSING	182	61
49	ELECTRIC, GAS, AND SANITARY SERVICES	1,887
50	WHOLESALE TRADE - DURABLE GOODS	113
TOTAL		30,784	8,856

*(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.