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 NAPHTHA
CAS # 8030-30-6
RTECS # DE3030000 
Agent Code M0628

OIL AND GAS EXTRACTION (SIC 13)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
368 WEIGHERS, MEASURERS, AND CHECKERS 100.0%
0.0%
0.0%
0.0%
0.0%
109
518 INDUSTRIAL MACHINERY REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
344
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
716
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
109
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
145
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 50.0%
0.0%
0.0%
50.0%
0.0%
362
783 WELDERS AND CUTTERS 92.3%
0.0%
0.0%
7.7%
0.0%
471
889 LABORERS, EXCEPT CONSTRUCTION 50.0%
0.0%
0.0%
50.0%
0.0%
362
SUBTOTAL 84.7%
0.0%
0.0%
15.2%
0.0%
2,618
GENERAL BUILDING CONTRACTORS (SIC 15)
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%
100
516 HEAVY EQUIPMENT MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
1,047
558 SUPERVISORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
428
567 CARPENTERS 100.0%
0.0%
0.0%
0.0%
0.0%
5,039
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
352
595 ROOFERS 100.0%
0.0%
0.0%
0.0%
0.0%
196
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 13.3%
20.0%
66.7%
0.0%
0.0%
833
844 OPERATING ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
2,363
869 CONSTRUCTION LABORERS 100.0%
0.0%
0.0%
0.0%
0.0%
5,813
SUBTOTAL 95.5%
1.0%
3.4%
0.0%
0.0%
16,171
HEAVY CONSTRUCTION CONTRACTORS (SIC 16)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
514 AUTOMOBILE BODY AND RELATED REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
24
516 HEAVY EQUIPMENT MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
346
783 WELDERS AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
346
844 OPERATING ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
3,337
869 CONSTRUCTION LABORERS 100.0%
0.0%
0.0%
0.0%
0.0%
7,133
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
11,186
SPECIAL TRADE CONTRACTORS (SIC 17)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
019 MANAGERS AND ADMINISTRATORS, N.E.C. 0.0%
0.0%
0.0%
100.0%
0.0%
280
505 AUTOMOBILE MECHANICS 50.0%
0.0%
50.0%
0.0%
0.0%
4,029
516 HEAVY EQUIPMENT MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
566
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
970
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
3,384
563 BRICKMASONS AND STONEMASONS 100.0%
0.0%
0.0%
0.0%
0.0%
465
567 CARPENTERS 67.5%
0.0%
32.5%
0.0%
0.0%
6,827
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
1,950
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
38,215
595 ROOFERS 0.0%
0.0%
82.0%
18.0%
0.0%
35,580
653 SHEET METAL WORKERS 100.0%
0.0%
0.0%
0.0%
0.0%
771
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 50.0%
0.0%
0.0%
50.0%
0.0%
4,197
783 WELDERS AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
3,599
844 OPERATING ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
707
869 CONSTRUCTION LABORERS 100.0%
0.0%
0.0%
0.0%
0.0%
892
SUBTOTAL 58.8%
0.0%
32.6%
8.5%
0.0%
102,432
FOOD AND KINDRED PRODUCTS (SIC 20)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
453 JANITORS AND CLEANERS 90.3%
0.0%
9.7%
0.0%
0.0%
2,376
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
185
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
627
687 BAKERS 100.0%
0.0%
0.0%
0.0%
0.0%
120
696 STATIONARY ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
290
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
31
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
388
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
138
SUBTOTAL 91.1%
0.0%
8.8%
0.0%
0.0%
4,155
TEXTILE MILL PRODUCTS (SIC 22)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
35
734 PRINTING MACHINE OPERATORS 20.0%
0.0%
80.0%
0.0%
0.0%
19,338
744 TEXTILE SEWING MACHINE OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
10,337
SUBTOTAL 13.1%
0.0%
52.0%
34.7%
0.0%
29,710
APPAREL AND OTHER TEXTILE PRODUCTS (SIC 23)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
773
518 INDUSTRIAL MACHINERY REPAIRERS 0.0%
0.0%
0.0%
100.0%
0.0%
111
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
137
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
53
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
137
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
685
SUBTOTAL 94.1%
0.0%
0.0%
5.8%
0.0%
1,896
LUMBER AND WOOD PRODUCTS (SIC 24)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
008 PERSONNEL AND LABOR RELATIONS MANAGERS 0.0%
0.0%
0.0%
100.0%
0.0%
144
363 PRODUCTION COORDINATORS 100.0%
0.0%
0.0%
0.0%
0.0%
532
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
699
549 NOT SPECIFIED MECHANICS AND REPAIRERS 30.3%
0.0%
0.0%
69.7%
0.0%
1,237
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 100.0%
0.0%
0.0%
0.0%
0.0%
1,020
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
311
633 SUPERVISORS, PRODUCTION OCCUPATIONS 0.0%
0.0%
0.0%
100.0%
0.0%
287
657 CABINET MAKERS AND BENCH CARPENTERS 100.0%
0.0%
0.0%
0.0%
0.0%
2,127
658 FURNITURE AND WOOD FINISHERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,595
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
90
719 MOLDING AND CASTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
134
727 SAWING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
134
733 MISCELLANEOUS WOODWORKING MACHINE OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
62
756 MIXING AND BLENDING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
134
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 3.3%
24.2%
48.3%
24.2%
0.0%
1,784
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 99.6%
0.0%
0.0%
0.0%
0.4%
2,607
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
254
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,794
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 0.0%
0.0%
0.0%
100.0%
0.0%
718
799 GRADERS AND SORTERS, EXCEPT AGRICULTURAL 100.0%
0.0%
0.0%
0.0%
0.0%
74
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
359
883 FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
45
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
90
SUBTOTAL 76.5%
2.6%
5.3%
15.4%
0.0%
16,231
FURNITURE AND FIXTURES (SIC 25)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
216 ENGINEERING TECHNICIANS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
59
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
606
379 GENERAL OFFICE CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
123
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
186
518 INDUSTRIAL MACHINERY REPAIRERS 0.0%
0.0%
66.7%
33.3%
0.0%
5,492
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
211
658 FURNITURE AND WOOD FINISHERS 10.6%
11.4%
41.3%
34.1%
2.6%
54,589
668 UPHOLSTERERS 0.0%
0.0%
0.0%
100.0%
0.0%
58
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 6.1%
15.7%
47.0%
31.3%
0.0%
10,774
727 SAWING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
786
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
174
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 0.2%
8.4%
15.4%
76.0%
0.0%
46,518
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 0.0%
0.0%
66.7%
33.3%
0.0%
200
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
11,376
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 100.0%
0.0%
0.0%
0.0%
0.0%
524
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
8,493
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
220
SUBTOTAL 20.8%
8.4%
27.5%
42.2%
1.0%
140,389
PAPER AND ALLIED PRODUCTS (SIC 26)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
225 SCIENCE TECHNICIANS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
125
235 TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
99
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
3,341
516 HEAVY EQUIPMENT MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
1,040
518 INDUSTRIAL MACHINERY REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,723
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,888
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
714
734 PRINTING MACHINE OPERATORS 80.3%
0.0%
19.7%
0.0%
0.0%
2,097
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 23.9%
0.0%
0.0%
76.1%
0.0%
572
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
136
764 WASHING, CLEANING, AND PICKLING MACHINE OPERATORS 0.0%
0.0%
0.0%
50.0%
50.0%
191
769 SLICING AND CUTTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
205
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
2,278
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
714
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
157
883 FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
714
SUBTOTAL 92.7%
0.0%
3.3%
3.3%
0.5%
15,994
PRINTING AND PUBLISHING (SIC 27)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
235 TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
316
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
990
549 NOT SPECIFIED MECHANICS AND REPAIRERS 0.0%
0.0%
0.0%
100.0%
0.0%
68
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
113
679 BOOKBINDERS 100.0%
0.0%
0.0%
0.0%
0.0%
5,683
734 PRINTING MACHINE OPERATORS 91.8%
0.0%
5.1%
3.1%
0.0%
51,553
735 PHOTOENGRAVERS AND LITHOGRAPHERS 100.0%
0.0%
0.0%
0.0%
0.0%
729
736 TYPESETTERS AND COMPOSITORS 100.0%
0.0%
0.0%
0.0%
0.0%
235
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 11.9%
0.0%
0.0%
88.1%
0.0%
2,641
756 MIXING AND BLENDING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
109
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 73.2%
0.0%
0.0%
26.8%
0.0%
85
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
73
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
462
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
279
SUBTOTAL 89.5%
0.0%
4.1%
6.3%
0.0%
63,336
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
019 MANAGERS AND ADMINISTRATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
395
048 CHEMICAL ENGINEERS 0.0%
0.0%
0.0%
0.0%
100.0%
13
073 CHEMISTS, EXCEPT BIOCHEMISTS 0.0%
0.0%
0.0%
100.0%
0.0%
97
224 CHEMICAL TECHNICIANS 10.1%
0.0%
19.8%
64.5%
5.6%
1,034
225 SCIENCE TECHNICIANS, N.E.C. 0.0%
0.0%
50.0%
50.0%
0.0%
9
335 FILE CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
104
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 45.8%
0.0%
0.0%
54.2%
0.0%
783
453 JANITORS AND CLEANERS 83.7%
0.0%
10.8%
5.5%
0.0%
2,939
535 CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS 0.0%
0.0%
0.0%
0.0%
100.0%
13
575 ELECTRICIANS 98.9%
0.0%
0.0%
0.0%
1.1%
290
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 0.0%
0.0%
79.8%
0.0%
20.2%
80
633 SUPERVISORS, PRODUCTION OCCUPATIONS 0.0%
0.0%
77.9%
0.0%
22.1%
263
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
13
754 PACKAGING AND FILLING MACHINE OPERATORS 0.0%
0.0%
66.7%
33.3%
0.0%
119
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
13.6%
27.7%
58.7%
0.0%
1,803
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 0.0%
0.0%
50.0%
50.0%
0.0%
265
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 59.7%
21.0%
8.7%
10.6%
0.0%
2,894
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 100.0%
0.0%
0.0%
0.0%
0.0%
257
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 29.4%
31.0%
4.4%
35.3%
0.0%
1,824
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
1,247
783 WELDERS AND CUTTERS 0.0%
0.0%
0.0%
0.0%
100.0%
6
798 PRODUCTION SAMPLERS AND WEIGHERS 26.6%
0.0%
73.4%
0.0%
0.0%
1,115
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
201
888 HAND PACKERS AND PACKAGERS 0.0%
0.0%
50.0%
50.0%
0.0%
159
889 LABORERS, EXCEPT CONSTRUCTION 2.7%
5.9%
57.0%
34.4%
0.0%
3,803
SUBTOTAL 39.9%
8.3%
24.8%
25.9%
0.8%
19,726
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
056 INDUSTRIAL ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
81
073 CHEMISTS, EXCEPT BIOCHEMISTS 100.0%
0.0%
0.0%
0.0%
0.0%
407
224 CHEMICAL TECHNICIANS 58.3%
0.0%
0.0%
41.7%
0.0%
2,956
225 SCIENCE TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
322
356 MAIL CLERKS, EXC. POSTAL SERVICE 50.0%
0.0%
50.0%
0.0%
0.0%
140
453 JANITORS AND CLEANERS 43.1%
0.0%
56.9%
0.0%
0.0%
3,048
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
795
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
2,921
567 CARPENTERS 100.0%
0.0%
0.0%
0.0%
0.0%
403
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
725
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,449
593 INSULATION WORKERS 100.0%
0.0%
0.0%
0.0%
0.0%
794
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
322
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
966
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 26.8%
0.0%
0.0%
0.0%
73.2%
2,403
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 64.6%
34.2%
1.2%
0.0%
0.0%
5,012
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
424
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 100.0%
0.0%
0.0%
0.0%
0.0%
28
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 42.2%
0.0%
42.3%
15.5%
0.0%
12,208
779 MACHINE OPERATORS, NOT SPECIFIED 0.0%
0.0%
34.5%
32.8%
32.8%
2,251
783 WELDERS AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
725
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
322
878 MACHINE FEEDERS AND OFFBEARERS 100.0%
0.0%
0.0%
0.0%
0.0%
322
SUBTOTAL 59.3%
4.3%
20.0%
9.8%
6.3%
39,024
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
224 CHEMICAL TECHNICIANS 0.0%
0.0%
100.0%
0.0%
0.0%
44
357 MESSENGERS 100.0%
0.0%
0.0%
0.0%
0.0%
278
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
91
519 MACHINERY MAINTENANCE OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
271
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
338
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
433
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
54
653 SHEET METAL WORKERS 100.0%
0.0%
0.0%
0.0%
0.0%
88
753 CEMENTING AND GLUING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
616
755 EXTRUDING AND FORMING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
1,735
756 MIXING AND BLENDING MACHINE OPERATORS 25.4%
0.0%
74.6%
0.0%
0.0%
267
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
183
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
2,737
783 WELDERS AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
102
785 ASSEMBLERS 62.7%
0.0%
18.6%
18.6%
0.0%
243
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,137
SUBTOTAL 96.1%
0.0%
3.3%
0.5%
0.0%
8,617
LEATHER AND LEATHER PRODUCTS (SIC 31)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
745 SHOE MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
2,516
753 CEMENTING AND GLUING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
1,008
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
900
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
4,424
STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
059 ENGINEERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
43
235 TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
18
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
263
518 INDUSTRIAL MACHINERY REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
177
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
991
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
30
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
118
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
25
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
171
804 TRUCK DRIVERS, HEAVY 100.0%
0.0%
0.0%
0.0%
0.0%
6,605
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
8,441
PRIMARY METAL INDUSTRIES (SIC 33)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
216 ENGINEERING TECHNICIANS, N.E.C. 19.8%
0.0%
40.1%
20.1%
20.1%
611
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
514
453 JANITORS AND CLEANERS 15.7%
0.0%
32.9%
51.4%
0.0%
5,244
544 MILLWRIGHTS 0.0%
0.0%
0.0%
0.0%
100.0%
247
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
373
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,220
567 CARPENTERS 100.0%
0.0%
0.0%
0.0%
0.0%
62
575 ELECTRICIANS 0.0%
0.0%
0.0%
0.0%
100.0%
49
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 0.0%
0.0%
0.0%
0.0%
100.0%
115
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
37
637 MACHINISTS 0.0%
0.0%
100.0%
0.0%
0.0%
121
719 MOLDING AND CASTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
176
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 0.4%
0.0%
29.0%
44.8%
25.7%
5,741
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 100.0%
0.0%
0.0%
0.0%
0.0%
645
769 SLICING AND CUTTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
29
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 71.5%
0.0%
28.5%
0.0%
0.0%
284
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
619
783 WELDERS AND CUTTERS 0.0%
0.0%
0.0%
0.0%
100.0%
99
785 ASSEMBLERS 0.0%
0.0%
100.0%
0.0%
0.0%
28
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 72.9%
0.0%
0.0%
0.0%
27.1%
910
889 LABORERS, EXCEPT CONSTRUCTION 0.0%
0.0%
71.4%
28.6%
0.0%
19
SUBTOTAL 32.1%
0.0%
22.6%
31.4%
13.7%
17,143
FABRICATED METAL PRODUCTS (SIC 34)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
019 MANAGERS AND ADMINISTRATORS, N.E.C. 0.0%
0.0%
0.0%
100.0%
0.0%
130
073 CHEMISTS, EXCEPT BIOCHEMISTS 100.0%
0.0%
0.0%
0.0%
0.0%
26
216 ENGINEERING TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
78
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
1,008
365 STOCK AND INVENTORY CLERKS 0.0%
0.0%
0.0%
100.0%
0.0%
65
453 JANITORS AND CLEANERS 72.8%
0.0%
7.1%
20.0%
0.0%
1,832
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
42
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 100.0%
0.0%
0.0%
0.0%
0.0%
116
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 67.5%
0.0%
32.5%
0.0%
0.0%
200
633 SUPERVISORS, PRODUCTION OCCUPATIONS 0.0%
0.0%
0.0%
100.0%
0.0%
130
634 TOOL AND DIE MAKERS 100.0%
0.0%
0.0%
0.0%
0.0%
64
643 BOILERMAKERS 0.0%
0.0%
0.0%
100.0%
0.0%
1,038
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 0.0%
0.0%
100.0%
0.0%
0.0%
156
704 LATHE AND TURNING MACHINE OPERATORS 0.0%
0.0%
50.0%
50.0%
0.0%
556
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
450
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
156
719 MOLDING AND CASTING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
442
723 METAL PLATING MACHINE OPERATORS 0.0%
0.0%
50.4%
49.6%
0.0%
817
727 SAWING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
371
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
98
744 TEXTILE SEWING MACHINE OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
908
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
7,645
754 PACKAGING AND FILLING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
929
755 EXTRUDING AND FORMING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
26
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 6.9%
20.9%
25.4%
26.2%
20.6%
24,706
769 SLICING AND CUTTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
161
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 36.5%
0.0%
63.5%
0.0%
0.0%
205
779 MACHINE OPERATORS, NOT SPECIFIED 0.0%
0.0%
100.0%
0.0%
0.0%
150
783 WELDERS AND CUTTERS 19.9%
0.0%
0.0%
80.1%
0.0%
1,781
785 ASSEMBLERS 34.5%
0.0%
43.6%
21.8%
0.0%
4,236
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 0.0%
0.0%
100.0%
0.0%
0.0%
78
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
78
873 PRODUCTION HELPERS 80.6%
0.0%
19.4%
0.0%
0.0%
1,894
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
75
889 LABORERS, EXCEPT CONSTRUCTION 83.5%
0.0%
0.0%
16.5%
0.0%
5,502
SUBTOTAL 39.6%
9.1%
18.8%
23.2%
9.0%
56,149
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
019 MANAGERS AND ADMINISTRATORS, N.E.C. 0.0%
0.0%
0.0%
100.0%
0.0%
94
216 ENGINEERING TECHNICIANS, N.E.C. 0.0%
0.0%
0.0%
100.0%
0.0%
1,170
235 TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
103
308 COMPUTER OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
6
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
910
453 JANITORS AND CLEANERS 68.9%
0.0%
29.0%
2.1%
0.0%
4,038
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
366
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
616
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
712
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 0.0%
92.2%
3.9%
3.9%
0.0%
180
593 INSULATION WORKERS 0.0%
0.0%
100.0%
0.0%
0.0%
218
633 SUPERVISORS, PRODUCTION OCCUPATIONS 26.1%
0.0%
73.9%
0.0%
0.0%
283
634 TOOL AND DIE MAKERS 0.0%
0.0%
100.0%
0.0%
0.0%
1,881
637 MACHINISTS 45.3%
0.0%
36.9%
17.8%
0.0%
9,902
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 100.0%
0.0%
0.0%
0.0%
0.0%
966
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
116
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
2,388
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
8
708 DRILLING AND BORING MACHINE OPERATORS 15.3%
0.0%
44.3%
40.5%
0.0%
875
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
260
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
652
756 MIXING AND BLENDING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
23
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 2.0%
4.2%
14.5%
77.2%
2.0%
882
768 CRUSHING AND GRINDING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
55
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 65.7%
0.0%
0.0%
34.3%
0.0%
183
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 78.8%
0.0%
0.0%
21.2%
0.0%
343
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
2,537
783 WELDERS AND CUTTERS 85.1%
0.0%
14.9%
0.0%
0.0%
700
785 ASSEMBLERS 68.9%
0.0%
5.9%
23.3%
2.0%
20,276
797 PRODUCTION TESTERS 0.0%
0.0%
100.0%
0.0%
0.0%
246
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
72
889 LABORERS, EXCEPT CONSTRUCTION 96.1%
3.9%
0.0%
0.0%
0.0%
1,913
SUBTOTAL 64.3%
0.5%
17.3%
17.0%
0.7%
52,974
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
005 ADMINISTRATORS AND OFFICIALS, PUBLIC ADMINISTRATION 0.0%
0.0%
100.0%
0.0%
0.0%
14
055 ELECTRICAL AND ELECTRONIC ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
100
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 82.7%
0.4%
14.3%
2.6%
0.0%
616
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 6.9%
0.0%
0.0%
93.1%
0.0%
87
365 STOCK AND INVENTORY CLERKS 1.0%
0.0%
99.0%
0.0%
0.0%
1,444
368 WEIGHERS, MEASURERS, AND CHECKERS 100.0%
0.0%
0.0%
0.0%
0.0%
104
453 JANITORS AND CLEANERS 68.7%
0.0%
31.3%
0.0%
0.0%
1,088
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
7
523 ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT 0.0%
0.0%
100.0%
0.0%
0.0%
194
544 MILLWRIGHTS 100.0%
0.0%
0.0%
0.0%
0.0%
168
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
26
549 NOT SPECIFIED MECHANICS AND REPAIRERS 18.9%
0.0%
79.5%
1.5%
0.0%
2,382
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
96
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 0.0%
0.0%
4.1%
55.6%
40.3%
553
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
358
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 0.0%
0.0%
100.0%
0.0%
0.0%
17
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
2,320
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
48
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
913
708 DRILLING AND BORING MACHINE OPERATORS 46.9%
0.0%
53.1%
0.0%
0.0%
22
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 97.6%
0.0%
2.4%
0.0%
0.0%
117
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
12
719 MOLDING AND CASTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
32
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
95
735 PHOTOENGRAVERS AND LITHOGRAPHERS 100.0%
0.0%
0.0%
0.0%
0.0%
7
753 CEMENTING AND GLUING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
3
755 EXTRUDING AND FORMING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
1,332
756 MIXING AND BLENDING MACHINE OPERATORS 84.1%
0.0%
11.9%
4.0%
0.0%
148
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 10.0%
15.4%
34.3%
32.4%
8.0%
3,273
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 63.5%
0.0%
24.7%
11.9%
0.0%
263
769 SLICING AND CUTTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
62
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 63.3%
4.1%
28.4%
4.1%
0.0%
613
783 WELDERS AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
192
784 SOLDERERS AND BRAZERS 88.6%
0.0%
11.4%
0.0%
0.0%
103
785 ASSEMBLERS 50.9%
2.3%
7.6%
38.6%
0.6%
6,735
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
5
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 42.6%
0.0%
46.1%
11.4%
0.0%
1,426
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
287
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 0.0%
0.0%
100.0%
0.0%
0.0%
12
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
361
889 LABORERS, EXCEPT CONSTRUCTION 100.0%
0.0%
0.0%
0.0%
0.0%
1,471
SUBTOTAL 55.2%
2.5%
24.2%
15.9%
1.9%
27,106
TRANSPORTATION EQUIPMENT (SIC 37)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
044 AEROSPACE ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
43
074 ATMOSPHERIC AND SPACE SCIENTISTS 100.0%
0.0%
0.0%
0.0%
0.0%
22
215 MECHANICAL ENGINEERING TECHNICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
79
216 ENGINEERING TECHNICIANS, N.E.C. 96.6%
0.0%
3.4%
0.0%
0.0%
167
224 CHEMICAL TECHNICIANS 25.0%
0.0%
0.0%
75.0%
0.0%
11
225 SCIENCE TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
9
345 DUPLICATING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
44
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 0.0%
0.0%
50.0%
50.0%
0.0%
17
365 STOCK AND INVENTORY CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
9
379 GENERAL OFFICE CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
74
453 JANITORS AND CLEANERS 24.7%
28.8%
17.1%
29.4%
0.0%
9,687
505 AUTOMOBILE MECHANICS 86.1%
0.0%
0.0%
13.9%
0.0%
511
519 MACHINERY MAINTENANCE OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
44
523 ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT 0.0%
0.0%
50.0%
50.0%
0.0%
34
538 OFFICE MACHINE REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
14
549 NOT SPECIFIED MECHANICS AND REPAIRERS 0.2%
49.9%
49.9%
0.0%
0.0%
19,365
567 CARPENTERS 100.0%
0.0%
0.0%
0.0%
0.0%
125
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
222
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 8.1%
29.1%
32.9%
30.0%
0.0%
4,641
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
229
633 SUPERVISORS, PRODUCTION OCCUPATIONS 0.0%
0.0%
0.0%
100.0%
0.0%
65
634 TOOL AND DIE MAKERS 11.5%
0.0%
88.5%
0.0%
0.0%
312
637 MACHINISTS 88.8%
0.0%
0.0%
11.2%
0.0%
1,567
649 ENGRAVERS, METAL 100.0%
0.0%
0.0%
0.0%
0.0%
9
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
57
689 INSPECTORS, TESTERS, AND GRADERS 100.0%
0.0%
0.0%
0.0%
0.0%
744
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
259
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
256
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 75.4%
0.0%
24.6%
0.0%
0.0%
935
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
7
717 FABRICATING MACHINE OPERATORS, N.E.C. 0.0%
0.0%
50.0%
50.0%
0.0%
153
723 METAL PLATING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
6
725 MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS 0.0%
24.7%
50.6%
24.7%
0.0%
517
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
148
753 CEMENTING AND GLUING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
238
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
6.8%
83.2%
10.1%
0.0%
754
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 15.2%
2.6%
50.8%
23.7%
7.7%
27,282
769 SLICING AND CUTTING MACHINE OPERATORS 65.8%
0.0%
34.2%
0.0%
0.0%
116
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
17
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 10.8%
0.0%
89.2%
0.0%
0.0%
236
779 MACHINE OPERATORS, NOT SPECIFIED 84.2%
0.0%
7.9%
7.9%
0.0%
1,330
783 WELDERS AND CUTTERS 25.4%
0.0%
0.0%
74.6%
0.0%
380
785 ASSEMBLERS 78.8%
0.2%
13.3%
7.7%
0.0%
15,852
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 0.0%
38.6%
51.1%
10.3%
0.0%
6,924
795 MISCELLANEOUS HAND WORKING OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
3
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 77.7%
0.0%
2.1%
20.2%
0.0%
541
797 PRODUCTION TESTERS 0.0%
0.0%
50.0%
50.0%
0.0%
45
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
1,536
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
301
888 HAND PACKERS AND PACKAGERS 30.4%
0.0%
47.1%
22.4%
0.0%
177
889 LABORERS, EXCEPT CONSTRUCTION 80.9%
0.0%
19.1%
0.0%
0.0%
89
SUBTOTAL 29.3%
18.0%
36.0%
14.3%
2.1%
96,203
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
188 PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS 100.0%
0.0%
0.0%
0.0%
0.0%
173
335 FILE CLERKS 50.0%
0.0%
0.0%
0.0%
50.0%
663
453 JANITORS AND CLEANERS 41.0%
0.0%
59.0%
0.0%
0.0%
425
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
826
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 0.0%
0.0%
100.0%
0.0%
0.0%
24
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
561
719 MOLDING AND CASTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
25
723 METAL PLATING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
198
734 PRINTING MACHINE OPERATORS 30.0%
0.0%
70.0%
0.0%
0.0%
495
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 23.4%
0.0%
50.0%
13.3%
13.3%
235
769 SLICING AND CUTTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
30
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
413
785 ASSEMBLERS 68.6%
0.0%
13.5%
0.0%
17.9%
4,005
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
45
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
54
SUBTOTAL 67.7%
0.0%
18.0%
0.9%
13.2%
8,172
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
188 PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS 100.0%
0.0%
0.0%
0.0%
0.0%
4,641
308 COMPUTER OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
351
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
591
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 100.0%
0.0%
0.0%
0.0%
0.0%
46
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
1,133
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
774
696 STATIONARY ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
96
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
159
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
177
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 1.3%
32.2%
33.5%
32.2%
0.7%
9,852
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 0.0%
3.2%
3.2%
93.5%
0.0%
1,641
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 0.0%
0.0%
0.0%
100.0%
0.0%
1,319
779 MACHINE OPERATORS, NOT SPECIFIED 66.7%
0.0%
33.3%
0.0%
0.0%
288
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,027
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
3,400
795 MISCELLANEOUS HAND WORKING OCCUPATIONS 0.0%
0.0%
0.0%
100.0%
0.0%
528
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 100.0%
0.0%
0.0%
0.0%
0.0%
53
888 HAND PACKERS AND PACKAGERS 100.0%
0.0%
0.0%
0.0%
0.0%
307
SUBTOTAL 49.5%
12.2%
13.0%
24.8%
0.2%
26,383
LOCAL AND INTERURBAN PASSENGER TRANSIT (SIC 41)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
505 AUTOMOBILE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
351
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
883
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
1,234
TRUCKING AND WAREHOUSING (SIC 42)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
308 COMPUTER OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
77
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
376
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
327
734 PRINTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
72
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
182
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
1,034
WATER TRANSPORTATION (SIC 44)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 0.0%
33.3%
66.7%
0.0%
0.0%
7,384
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 0.0%
50.0%
50.0%
0.0%
0.0%
23,907
889 LABORERS, EXCEPT CONSTRUCTION 0.0%
0.0%
100.0%
0.0%
0.0%
10,284
SUBTOTAL 0.0%
34.6%
65.3%
0.0%
0.0%
41,575
TRANSPORTATION BY AIR (SIC 45)
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%
2,593
508 AIRCRAFT ENGINE MECHANICS 96.0%
0.0%
2.0%
2.0%
0.0%
9,184
515 AIRCRAFT MECHANICS, EXC. ENGINE 34.8%
0.0%
36.6%
28.7%
0.0%
564
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
960
637 MACHINISTS 0.0%
0.0%
0.0%
100.0%
0.0%
86
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
1,812
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
69
797 PRODUCTION TESTERS 100.0%
0.0%
0.0%
0.0%
0.0%
320
SUBTOTAL 94.7%
0.0%
2.5%
2.7%
0.0%
15,588
COMMUNICATION (SIC 48)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
055 ELECTRICAL AND ELECTRONIC ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,001
188 PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS 100.0%
0.0%
0.0%
0.0%
0.0%
215
228 BROADCAST EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
2,002
527 TELEPHONE LINE INSTALLERS AND REPAIRERS 0.0%
0.0%
100.0%
0.0%
0.0%
225
734 PRINTING MACHINE OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
149
SUBTOTAL 89.5%
0.0%
6.2%
4.1%
0.0%
3,592
ELECTRIC, GAS, AND SANITARY SERVICES (SIC 49)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
505 AUTOMOBILE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
552
526 HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,579
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
610
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,887
577 ELECTRICAL POWER INSTALLERS AND REPAIRERS 0.0%
0.0%
60.0%
40.0%
0.0%
4,667
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
384
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
471
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 0.0%
0.0%
60.0%
40.0%
0.0%
7,547
878 MACHINE FEEDERS AND OFFBEARERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,384
SUBTOTAL 35.9%
0.0%
38.4%
25.6%
0.0%
19,081
WHOLESALE TRADE - DURABLE GOODS (SIC 50)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
259 SALES REPRESENTATIVES, MINING, MANUFACTURING, AND WHOLESALE 100.0%
0.0%
0.0%
0.0%
0.0%
354
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
303
514 AUTOMOBILE BODY AND RELATED REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
788
516 HEAVY EQUIPMENT MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
4,126
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
792
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
6,363
WHOLESALE TRADE - NONDURABLE GOODS (SIC 51)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
2,156
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
2,156
AUTOMOTIVE DEALERS & SERVICE STATIONS (SIC 55)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
505 AUTOMOBILE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
4,052
885 GARAGE AND SERVICE STATION RELATED OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
4,391
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,723
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
10,166
PERSONAL SERVICES (SIC 72)
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%
429
696 STATIONARY ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
161
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
590
BUSINESS SERVICES (SIC 73)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
048 CHEMICAL ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
282
216 ENGINEERING TECHNICIANS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
47
356 MAIL CLERKS, EXC. POSTAL SERVICE 100.0%
0.0%
0.0%
0.0%
0.0%
174
385 DATA-ENTRY KEYERS 100.0%
0.0%
0.0%
0.0%
0.0%
222
526 HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
35
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
141
744 TEXTILE SEWING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
5,563
756 MIXING AND BLENDING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
704
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 0.0%
0.0%
75.0%
25.0%
0.0%
38
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
1,957
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 94.8%
2.6%
2.6%
0.0%
0.0%
2,098
SUBTOTAL 98.2%
0.4%
1.1%
8.4%
0.0%
11,261
AUTO REPAIR, SERVICES, AND GARAGES (SIC 75)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
505 AUTOMOBILE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
511
514 AUTOMOBILE BODY AND RELATED REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
2,935
516 HEAVY EQUIPMENT MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
1,480
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,532
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 100.0%
0.0%
0.0%
0.0%
0.0%
898
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
1,532
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
8,888
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
526 HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
1,837
649 ENGRAVERS, METAL 0.0%
0.0%
66.7%
33.3%
0.0%
1,740
723 METAL PLATING MACHINE OPERATORS 0.0%
0.0%
66.7%
33.3%
0.0%
870
SUBTOTAL 41.3%
0.0%
39.1%
19.5%
0.0%
4,447
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
057 MECHANICAL ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
96
059 ENGINEERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
96
099 OCCUPATIONAL THERAPISTS 100.0%
0.0%
0.0%
0.0%
0.0%
84
105 THERAPISTS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
147
208 HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
32
345 DUPLICATING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
33
365 STOCK AND INVENTORY CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
115
449 MAIDS AND HOUSEMEN 44.6%
0.0%
55.4%
0.0%
0.0%
3,880
453 JANITORS AND CLEANERS 33.4%
0.0%
51.4%
15.2%
0.0%
7,050
518 INDUSTRIAL MACHINERY REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
92
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
27
543 ELEVATOR INSTALLERS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
25
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
559
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
693
567 CARPENTERS 34.3%
0.0%
35.8%
30.0%
0.0%
542
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
206
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 31.3%
7.7%
28.4%
32.6%
0.0%
373
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
343
637 MACHINISTS 0.0%
0.0%
100.0%
0.0%
0.0%
28
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
27
696 STATIONARY ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
43
734 PRINTING MACHINE OPERATORS 83.4%
0.0%
16.6%
0.0%
0.0%
501
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 42.7%
0.0%
48.1%
9.2%
0.0%
502
883 FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
8
SUBTOTAL 49.3%
0.1%
41.4%
9.0%
0.0%
15,502
TOTAL 50.9%
6.2%
24.0%
17.0%
1.7%
909,957
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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