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 INDOLIUM, 3H-, 1,3,3-TRIMETHYL-2-(2-(2-METHYLINDOL-3-YL)VINYL)-, CHLORIDE
CAS # 3056-93-7
RTECS #  
Agent Code M2218

TEXTILE MILL PRODUCTS (SIC 22)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
216 ENGINEERING TECHNICIANS, N.E.C. 35.5%
0.0%
32.3%
32.3%
0.0%
108
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
151
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
70
748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
175
753 CEMENTING AND GLUING MACHINE OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
306
756 MIXING AND BLENDING MACHINE OPERATORS 12.4%
15.8%
65.4%
6.4%
0.0%
5,256
SUBTOTAL 17.9%
13.6%
57.2%
11.1%
0.0%
6,066
PRINTING AND PUBLISHING (SIC 27)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
736 TYPESETTERS AND COMPOSITORS 100.0%
0.0%
0.0%
0.0%
0.0%
92
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
92
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
20.0%
60.0%
20.0%
0.0%
2,703
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 0.0%
0.0%
75.0%
25.0%
0.0%
1,081
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 0.0%
13.0%
62.3%
24.7%
0.0%
1,892
768 CRUSHING AND GRINDING MACHINE OPERATORS 0.0%
25.0%
50.0%
25.0%
0.0%
688
SUBTOTAL 0.0%
15.0%
62.1%
22.7%
0.0%
6,364
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
185 DESIGNERS 100.0%
0.0%
0.0%
0.0%
0.0%
122
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
122
TRANSPORTATION EQUIPMENT (SIC 37)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
7
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
7
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
953
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
953
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
207
756 MIXING AND BLENDING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
103
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
1,033
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
103
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
1,446
TOTAL 24.6%
11.8%
49.3%
14.1%
0.0%
15,050
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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