National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name NITROGEN OXIDE (NO)
CAS # 10102-43-9
RTECS # QX0525000 
Agent Code 50745

CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
073 CHEMISTS, EXCEPT BIOCHEMISTS 830
192
549 NOT SPECIFIED MECHANICS AND REPAIRERS 469

567 CARPENTERS 108

575 ELECTRICIANS 445

585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 842

593 INSULATION WORKERS 228

637 MACHINISTS 1,046

695 POWER PLANT OPERATORS 337

757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 3,199

759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 108

783 WELDERS AND CUTTERS 289

889 LABORERS, EXCEPT CONSTRUCTION 120

SUBTOTAL 8,021
192
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 14
14
SUBTOTAL 14
14
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
098 INHALATION THERAPISTS 232
125
208 HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. 426
390
447 NURSING AIDES, ORDERLIES, AND ATTENDANTS 5,639
5,462
SUBTOTAL 6,297
5,977
TOTAL 14,332 6,183
RELATED PAGES: Estimates by SIC, Estimates by Occupation

*(1) The estimates for each occupation apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC where the agent was observed. Not all SICs were surveyed, and not all agents were observed in all surveyed SICs. (2) When using the estimates, standard errors associated with estimates should be considered. (3) 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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