National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by 2-Digit Standard Industrial Classification (SIC)*

Agent Name BENTONITE
CAS # 1302-78-9
RTECS # CT9450000
Agent Code 90340

SIC Industry Description (1972) Total # Employees
(Male & Female)
Total # Female
Employees
07 AGRICULTURAL SERVICES 4,400 589
13 OIL AND GAS EXTRACTION 25,046  
15 GENERAL BUILDING CONTRACTORS 36,797 86
16 HEAVY CONSTRUCTION CONTRACTORS 9,050 100
17 SPECIAL TRADE CONTRACTORS 60,482 405
20 FOOD AND KINDRED PRODUCTS 7,493 377
22 TEXTILE MILL PRODUCTS 3,616 2,081
23 APPAREL AND OTHER TEXTILE PRODUCTS 453  
24 LUMBER AND WOOD PRODUCTS 4,068  
25 FURNITURE AND FIXTURES 6,454 540
26 PAPER AND ALLIED PRODUCTS 15,471 46
27 PRINTING AND PUBLISHING 28,988 7,268
28 CHEMICALS AND ALLIED PRODUCTS 15,557 4,294
29 PETROLEUM AND COAL PRODUCTS 3,639 244
30 RUBBER AND MISC. PLASTICS PRODUCTS 15,869 897
32 STONE, CLAY, AND GLASS PRODUCTS 9,713 918
33 PRIMARY METAL INDUSTRIES 70,845 982
34 FABRICATED METAL PRODUCTS 30,074 572
35 MACHINERY, EXCEPT ELECTRICAL 63,475 3,646
36 ELECTRIC AND ELECTRONIC EQUIPMENT 11,106 1,434
37 TRANSPORTATION EQUIPMENT 32,877 966
38 INSTRUMENTS AND RELATED PRODUCTS 1,885 511
39 MISCELLANEOUS MANUFACTURING INDUSTRIES 1,702 840
41 LOCAL AND INTERURBAN PASSENGER TRANSIT 678  
42 TRUCKING AND WAREHOUSING 622  
44 WATER TRANSPORTATION 4,634 244
45 TRANSPORTATION BY AIR 8,581 420
49 ELECTRIC, GAS, AND SANITARY SERVICES 10,727 63
50 WHOLESALE TRADE - DURABLE GOODS 13,942 247
51 WHOLESALE TRADE - NONDURABLE GOODS 13,118 474
55 AUTOMOTIVE DEALERS & SERVICE STATIONS 4,614 1,098
72 PERSONAL SERVICES 4,166 70
73 BUSINESS SERVICES 2,808 75
75 AUTO REPAIR, SERVICES, AND GARAGES 5,945  
76 MISCELLANEOUS REPAIR SERVICES 204  
80 HEALTH SERVICES 16,694 7,263
TOTAL 545,795 36,750

*(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.

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