National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name IRON OXIDE (FE3O4)
CAS # 1317-61-9
RTECS #
Agent Code 70131

SIC Industry Description (1972) Total # Employees
(Male & Female)
Total # Female
Employees
13 OIL AND GAS EXTRACTION 2,585  
15 GENERAL BUILDING CONTRACTORS 5,101 10
16 HEAVY CONSTRUCTION CONTRACTORS 1,616  
17 SPECIAL TRADE CONTRACTORS 12,432 645
20 FOOD AND KINDRED PRODUCTS 4,230  
21 TOBACCO MANUFACTURERS 1  
22 TEXTILE MILL PRODUCTS 145  
24 LUMBER AND WOOD PRODUCTS 1,611  
25 FURNITURE AND FIXTURES 1,400 755
27 PRINTING AND PUBLISHING 2,452 199
28 CHEMICALS AND ALLIED PRODUCTS 6,383 408
30 RUBBER AND MISC. PLASTICS PRODUCTS 9,608 2,686
32 STONE, CLAY, AND GLASS PRODUCTS 2,605 39
33 PRIMARY METAL INDUSTRIES 3,799 8
34 FABRICATED METAL PRODUCTS 14,326 174
35 MACHINERY, EXCEPT ELECTRICAL 7,931 139
36 ELECTRIC AND ELECTRONIC EQUIPMENT 2,796 1,509
37 TRANSPORTATION EQUIPMENT 2,754 196
38 INSTRUMENTS AND RELATED PRODUCTS 188 3
42 TRUCKING AND WAREHOUSING 255  
45 TRANSPORTATION BY AIR 1,830  
48 COMMUNICATION 83 83
50 WHOLESALE TRADE - DURABLE GOODS 164  
72 PERSONAL SERVICES 1,813  
76 MISCELLANEOUS REPAIR SERVICES 1,852  
80 HEALTH SERVICES 219 219
TOTAL 88,193 7,074

*(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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