National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name SILICON
CAS # 7440-21-3
RTECS # VW0400000
Agent Code 68695

SIC Industry Description (1972) Total # Employees
(Male & Female)
Total # Female
Employees
07 AGRICULTURAL SERVICES 403  
13 OIL AND GAS EXTRACTION 3,707  
15 GENERAL BUILDING CONTRACTORS 36,034 86
16 HEAVY CONSTRUCTION CONTRACTORS 16,850 100
17 SPECIAL TRADE CONTRACTORS 80,480 141
20 FOOD AND KINDRED PRODUCTS 14,970 903
21 TOBACCO MANUFACTURERS 30  
22 TEXTILE MILL PRODUCTS 2,463 106
23 APPAREL AND OTHER TEXTILE PRODUCTS 1,837  
24 LUMBER AND WOOD PRODUCTS 4,606 601
25 FURNITURE AND FIXTURES 3,793 12
26 PAPER AND ALLIED PRODUCTS 10,087 110
27 PRINTING AND PUBLISHING 3,265 36
28 CHEMICALS AND ALLIED PRODUCTS 26,302 3,121
29 PETROLEUM AND COAL PRODUCTS 5,490 188
30 RUBBER AND MISC. PLASTICS PRODUCTS 14,981 590
31 LEATHER AND LEATHER PRODUCTS 113  
32 STONE, CLAY, AND GLASS PRODUCTS 16,087 1,592
33 PRIMARY METAL INDUSTRIES 50,845 888
34 FABRICATED METAL PRODUCTS 88,304 2,937
35 MACHINERY, EXCEPT ELECTRICAL 90,373 1,564
36 ELECTRIC AND ELECTRONIC EQUIPMENT 13,630 1,995
37 TRANSPORTATION EQUIPMENT 67,551 4,198
38 INSTRUMENTS AND RELATED PRODUCTS 11,684 1,576
39 MISCELLANEOUS MANUFACTURING INDUSTRIES 11,301 256
42 TRUCKING AND WAREHOUSING 7,186  
44 WATER TRANSPORTATION 1,012  
45 TRANSPORTATION BY AIR 6,960  
46 PIPE LINES, EXCEPT NATURAL GAS 1,197  
49 ELECTRIC, GAS, AND SANITARY SERVICES 14,650 116
50 WHOLESALE TRADE - DURABLE GOODS 16,623 293
55 AUTOMOTIVE DEALERS & SERVICE STATIONS 907  
72 PERSONAL SERVICES 140  
73 BUSINESS SERVICES 1,817 49
75 AUTO REPAIR, SERVICES, AND GARAGES 30,357  
76 MISCELLANEOUS REPAIR SERVICES 27,707  
80 HEALTH SERVICES 9,570 6,705
TOTAL 693,583 28,164

*(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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