National Occupational Exposure Survey
(1981 - 1983)

Estimated Percentages of Controlled and Uncontrolled Potential Exposures to Specific Agents by Occupation within 2-Digit Standard Industrial Classification (SIC)*

Agent Name MANGANESE OXIDE
CAS #
RTECS #  
Agent Code 81664

SPECIAL TRADE CONTRACTORS (SIC 17)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 0.0%
0.0%
50.0%
50.0%
0.0%
4,783
783 WELDERS AND CUTTERS 0.0%
0.0%
50.0%
50.0%
0.0%
2,391
SUBTOTAL 0.0%
0.0%
50.0%
50.0%
0.0%
7,174
FOOD AND KINDRED PRODUCTS (SIC 20)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
083 MEDICAL SCIENTISTS 100.0%
0.0%
0.0%
0.0%
0.0%
46
223 BIOLOGICAL TECHNICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
730
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 0.0%
0.0%
100.0%
0.0%
0.0%
1,048
549 NOT SPECIFIED MECHANICS AND REPAIRERS 0.0%
0.0%
100.0%
0.0%
0.0%
2,144
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 0.0%
0.0%
100.0%
0.0%
0.0%
143
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
50.0%
50.0%
0.0%
0.0%
183
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 0.0%
0.0%
100.0%
0.0%
0.0%
143
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 0.0%
50.0%
50.0%
0.0%
0.0%
730
SUBTOTAL 15.0%
8.8%
76.1%
0.0%
0.0%
5,167
FURNITURE AND FIXTURES (SIC 25)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
30
SUBTOTAL 0.0%
0.0%
100.0%
0.0%
0.0%
30
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
224 CHEMICAL TECHNICIANS 8.4%
0.0%
45.8%
45.8%
0.0%
115
535 CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS 0.0%
0.0%
0.0%
0.0%
100.0%
10
633 SUPERVISORS, PRODUCTION OCCUPATIONS 0.0%
0.0%
0.0%
0.0%
100.0%
23
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
53
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 0.0%
33.3%
66.7%
0.0%
0.0%
158
SUBTOTAL 2.6%
14.6%
58.7%
14.6%
9.1%
359
PRIMARY METAL INDUSTRIES (SIC 33)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,751
518 INDUSTRIAL MACHINERY REPAIRERS 0.0%
0.0%
100.0%
0.0%
0.0%
47
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
243
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
47
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
93
725 MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS 0.0%
0.0%
66.7%
16.7%
16.7%
288
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 100.0%
0.0%
0.0%
0.0%
0.0%
614
768 CRUSHING AND GRINDING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
93
779 MACHINE OPERATORS, NOT SPECIFIED 7.7%
0.0%
0.0%
47.7%
44.6%
2,719
783 WELDERS AND CUTTERS 0.0%
15.1%
84.9%
0.0%
0.0%
1,092
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
233
888 HAND PACKERS AND PACKAGERS 0.0%
0.0%
100.0%
0.0%
0.0%
1,027
889 LABORERS, EXCEPT CONSTRUCTION 100.0%
0.0%
0.0%
0.0%
0.0%
32
SUBTOTAL 38.3%
1.9%
28.1%
16.2%
15.2%
8,279
FABRICATED METAL PRODUCTS (SIC 34)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
643 BOILERMAKERS 0.0%
0.0%
0.0%
100.0%
0.0%
65
783 WELDERS AND CUTTERS 0.0%
0.0%
75.0%
25.0%
0.0%
2,541
873 PRODUCTION HELPERS 0.0%
0.0%
0.0%
100.0%
0.0%
163
SUBTOTAL 0.0%
0.0%
68.8%
31.1%
0.0%
2,769
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
783 WELDERS AND CUTTERS 5.0%
0.0%
95.0%
0.0%
0.0%
589
SUBTOTAL 5.0%
0.0%
94.9%
0.0%
0.0%
589
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 0.0%
0.0%
0.0%
69.4%
30.6%
1,569
SUBTOTAL 0.0%
0.0%
0.0%
69.4%
30.6%
1,569
TRANSPORTATION EQUIPMENT (SIC 37)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
515 AIRCRAFT MECHANICS, EXC. ENGINE 0.0%
100.0%
0.0%
0.0%
0.0%
567
725 MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS 0.0%
33.3%
66.7%
0.0%
0.0%
60
783 WELDERS AND CUTTERS 0.0%
0.0%
66.7%
33.3%
0.0%
99
SUBTOTAL 0.0%
80.8%
14.6%
4.5%
0.0%
726
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
719 MOLDING AND CASTING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
1,099
SUBTOTAL 0.0%
0.0%
100.0%
0.0%
0.0%
1,099
BUSINESS SERVICES (SIC 73)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
224 CHEMICAL TECHNICIANS 26.8%
0.0%
23.2%
50.0%
0.0%
3,643
SUBTOTAL 26.8%
0.0%
23.2%
50.0%
0.0%
3,643
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
453 JANITORS AND CLEANERS 0.0%
0.0%
100.0%
0.0%
0.0%
73
696 STATIONARY ENGINEERS 0.0%
0.0%
75.0%
25.0%
0.0%
69
783 WELDERS AND CUTTERS 0.0%
0.0%
75.0%
25.0%
0.0%
171
SUBTOTAL 0.0%
0.0%
80.8%
19.1%
0.0%
313
TOTAL 15.6%
3.9%
46.8%
27.9%
5.5%
31,717
RELATED PAGES: Estimates by SIC, Estimates by Occupation, Estimates by Occupation within SIC
ABBREVIATIONS:
Resp Prot = Respiratory Protection
Other PPE = Personal Protective Equipment Other Than Respiratory Protection
Vent = Ventilation

*(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 estimated numbers of exposures, 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. (4) For a given occupation, the estimated number of potential exposures is not necessarily equal to the estimated total number of potentially exposed workers. For example, a worker may be exposed to the same agent from multiple sources; thus, it is not the worker that is controlled but the exposure. (5) The presence or absence of controls does not imply that controls are necessary or required. The estimates and the controls are strictly based on observations associated with potential exposures.

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