National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name MAGNESIUM OXIDE (MGO)
CAS # 1309-48-4
RTECS # OM3850000
Agent Code 80298

SIC Industry Description (1972) Total # Employees
(Male & Female)
Total # Female
Employees
07 AGRICULTURAL SERVICES 2,845 1,265
13 OIL AND GAS EXTRACTION 191  
15 GENERAL BUILDING CONTRACTORS 28,647 646
16 HEAVY CONSTRUCTION CONTRACTORS 17,254 106
17 SPECIAL TRADE CONTRACTORS 85,910 562
20 FOOD AND KINDRED PRODUCTS 31,819 8,542
21 TOBACCO MANUFACTURERS 26  
22 TEXTILE MILL PRODUCTS 5,410 733
23 APPAREL AND OTHER TEXTILE PRODUCTS 4,025 3,199
24 LUMBER AND WOOD PRODUCTS 13,149 1,455
25 FURNITURE AND FIXTURES 7,805 474
26 PAPER AND ALLIED PRODUCTS 6,256 187
27 PRINTING AND PUBLISHING 5,850 701
28 CHEMICALS AND ALLIED PRODUCTS 32,197 6,496
29 PETROLEUM AND COAL PRODUCTS 6,541 699
30 RUBBER AND MISC. PLASTICS PRODUCTS 70,728 31,155
31 LEATHER AND LEATHER PRODUCTS 11,027 6,989
32 STONE, CLAY, AND GLASS PRODUCTS 37,715 5,179
33 PRIMARY METAL INDUSTRIES 28,060 476
34 FABRICATED METAL PRODUCTS 42,312 6,197
35 MACHINERY, EXCEPT ELECTRICAL 47,998 4,032
36 ELECTRIC AND ELECTRONIC EQUIPMENT 22,720 8,021
37 TRANSPORTATION EQUIPMENT 36,366 3,598
38 INSTRUMENTS AND RELATED PRODUCTS 28,710 12,788
39 MISCELLANEOUS MANUFACTURING INDUSTRIES 8,524 2,769
40 RAILROAD TRANSPORTATION 22  
42 TRUCKING AND WAREHOUSING 4,032 101
44 WATER TRANSPORTATION 5,480  
45 TRANSPORTATION BY AIR 15,693 69
48 COMMUNICATION 617  
49 ELECTRIC, GAS, AND SANITARY SERVICES 21,852 280
50 WHOLESALE TRADE - DURABLE GOODS 12,547 104
51 WHOLESALE TRADE - NONDURABLE GOODS 14,573 474
55 AUTOMOTIVE DEALERS & SERVICE STATIONS 5,259 598
72 PERSONAL SERVICES 5,600 5,345
73 BUSINESS SERVICES 26,505 6,503
75 AUTO REPAIR, SERVICES, AND GARAGES 10,146  
76 MISCELLANEOUS REPAIR SERVICES 4,945  
80 HEALTH SERVICES 54,575 29,615
84 MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS 1,643 164
TOTAL 765,812 149,523

*(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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