National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name WALNUT SHELLS
CAS #
RTECS #
Agent Code X4041

SIC Industry Description (1972) Total # Employees
(Male & Female)
Total # Female
Employees
13 OIL AND GAS EXTRACTION 7,885  
17 SPECIAL TRADE CONTRACTORS 2,119  
28 CHEMICALS AND ALLIED PRODUCTS 1,590  
29 PETROLEUM AND COAL PRODUCTS 63  
30 RUBBER AND MISC. PLASTICS PRODUCTS 412 47
32 STONE, CLAY, AND GLASS PRODUCTS 1,567 369
33 PRIMARY METAL INDUSTRIES 7,473  
34 FABRICATED METAL PRODUCTS 158  
35 MACHINERY, EXCEPT ELECTRICAL 3,688  
36 ELECTRIC AND ELECTRONIC EQUIPMENT 1,161 246
37 TRANSPORTATION EQUIPMENT 6  
50 WHOLESALE TRADE - DURABLE GOODS 1,312  
TOTAL 27,432 662

*(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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