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 MALEIC ANHYDRIDE
CAS # 108-31-6
RTECS # ON3675000 
Agent Code 43660

FURNITURE AND FIXTURES (SIC 25)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
633 SUPERVISORS, PRODUCTION OCCUPATIONS 169
889 LABORERS, EXCEPT CONSTRUCTION 678
SUBTOTAL 847
PAPER AND ALLIED PRODUCTS (SIC 26)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
734 PRINTING MACHINE OPERATORS 1,046
SUBTOTAL 1,046
PRINTING AND PUBLISHING (SIC 27)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
453 JANITORS AND CLEANERS 84
645 PATTERNMAKERS AND MODEL MAKERS, METAL 250
734 PRINTING MACHINE OPERATORS 9,155
 13
735 PHOTOENGRAVERS AND LITHOGRAPHERS 72
 18
737 MISCELLANEOUS PRINTING MACHINE OPERATORS 1,283
 837
SUBTOTAL 10,844
 868
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
019 MANAGERS AND ADMINISTRATORS, N.E.C. 444
216 ENGINEERING TECHNICIANS, N.E.C. 190
 57
224 CHEMICAL TECHNICIANS 6,793
 1,859
225 SCIENCE TECHNICIANS, N.E.C. 313
 313
235 TECHNICIANS, N.E.C. 512
 183
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 197
365 STOCK AND INVENTORY CLERKS 66
453 JANITORS AND CLEANERS 3,630
519 MACHINERY MAINTENANCE OCCUPATIONS 22
544 MILLWRIGHTS 766
549 NOT SPECIFIED MECHANICS AND REPAIRERS 470
567 CARPENTERS 57
575 ELECTRICIANS 79
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 44
593 INSULATION WORKERS 44
633 SUPERVISORS, PRODUCTION OCCUPATIONS 171
637 MACHINISTS 57
653 SHEET METAL WORKERS 75
694 WATER AND SEWAGE TREATMENT PLANT OPERATORS 66
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 119
754 PACKAGING AND FILLING MACHINE OPERATORS 89
756 MIXING AND BLENDING MACHINE OPERATORS 3,886
 38
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 3,185
 68
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 181
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 18
769 SLICING AND CUTTING MACHINE OPERATORS 86
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 2,452
 87
779 MACHINE OPERATORS, NOT SPECIFIED 99
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 9
798 PRODUCTION SAMPLERS AND WEIGHERS 296
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 369
888 HAND PACKERS AND PACKAGERS 1,789
 1,789
889 LABORERS, EXCEPT CONSTRUCTION 184
 91
SUBTOTAL 26,758
 4,485
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
073 CHEMISTS, EXCEPT BIOCHEMISTS 7
224 CHEMICAL TECHNICIANS 223
 56
SUBTOTAL 230
 56
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
755 EXTRUDING AND FORMING MACHINE OPERATORS 617
 163
756 MIXING AND BLENDING MACHINE OPERATORS 363
888 HAND PACKERS AND PACKAGERS 4,042
 2,262
SUBTOTAL 5,022
 2,425
PRIMARY METAL INDUSTRIES (SIC 33)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
225 SCIENCE TECHNICIANS, N.E.C. 238
453 JANITORS AND CLEANERS 873
756 MIXING AND BLENDING MACHINE OPERATORS 476
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 3,263
 14
SUBTOTAL 4,850
 14
FABRICATED METAL PRODUCTS (SIC 34)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 111
519 MACHINERY MAINTENANCE OCCUPATIONS 65
724 HEAT TREATING EQUIPMENT OPERATORS 140
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 51
SUBTOTAL 367
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
453 JANITORS AND CLEANERS 47
549 NOT SPECIFIED MECHANICS AND REPAIRERS 201
 201
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 74
636 PRECISION ASSEMBLERS, METAL 1,119
 947
637 MACHINISTS 201
 172
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 60
719 MOLDING AND CASTING MACHINE OPERATORS 165
734 PRINTING MACHINE OPERATORS 5
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 1,482
 741
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 249
768 CRUSHING AND GRINDING MACHINE OPERATORS 55
 29
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 646
 516
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 81
SUBTOTAL 4,385
 2,606
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
444 MISCELLANEOUS FOOD PREPARATION OCCUPATIONS 20
 20
453 JANITORS AND CLEANERS 36
617 MINING OCCUPATIONS, N.E.C. 529
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 52
723 METAL PLATING MACHINE OPERATORS 11
727 SAWING MACHINE OPERATORS 31
755 EXTRUDING AND FORMING MACHINE OPERATORS 304
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 92
 61
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 857
 305
785 ASSEMBLERS 150
SUBTOTAL 2,082
 386
TRANSPORTATION EQUIPMENT (SIC 37)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
496 TIMBER CUTTING AND LOGGING OCCUPATIONS 397
 227
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 176
 94
567 CARPENTERS 3,290
 227
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 497
 311
634 TOOL AND DIE MAKERS 350
 32
655 MISCELLANEOUS PRECISION METAL WORKERS 122
656 PATTERNMAKERS AND MODEL MAKERS, WOOD 82
 3
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 9
676 PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS 35
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 259
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 210
 6
719 MOLDING AND CASTING MACHINE OPERATORS 43
753 CEMENTING AND GLUING MACHINE OPERATORS 733
 582
756 MIXING AND BLENDING MACHINE OPERATORS 21
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 489
779 MACHINE OPERATORS, NOT SPECIFIED 1,353
 9
785 ASSEMBLERS 388
888 HAND PACKERS AND PACKAGERS 11
 11
SUBTOTAL 8,465
 1,502
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 85
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 65
 18
SUBTOTAL 150
 18
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
013 MANAGERS, MARKETING, ADVERTISING, AND PUBLIC RELATIONS 60
019 MANAGERS AND ADMINISTRATORS, N.E.C. 158
453 JANITORS AND CLEANERS 176
734 PRINTING MACHINE OPERATORS 473
756 MIXING AND BLENDING MACHINE OPERATORS 155
 34
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 911
 483
769 SLICING AND CUTTING MACHINE OPERATORS 158
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 1,222
 12
785 ASSEMBLERS 580
 580
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 223
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 103
889 LABORERS, EXCEPT CONSTRUCTION 315
 315
SUBTOTAL 4,534
 1,424
WATER TRANSPORTATION (SIC 44)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 1,708
833 MARINE ENGINEERS 2,632
SUBTOTAL 4,340
TRANSPORTATION BY AIR (SIC 45)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
453 JANITORS AND CLEANERS 599
518 INDUSTRIAL MACHINERY REPAIRERS 9
653 SHEET METAL WORKERS 944
785 ASSEMBLERS 3
SUBTOTAL 1,555
ELECTRIC, GAS, AND SANITARY SERVICES (SIC 49)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
567 CARPENTERS 105
577 ELECTRICAL POWER INSTALLERS AND REPAIRERS 933
SUBTOTAL 1,038
WHOLESALE TRADE - DURABLE GOODS (SIC 50)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 653
889 LABORERS, EXCEPT CONSTRUCTION 596
SUBTOTAL 1,249
AUTOMOTIVE DEALERS & SERVICE STATIONS (SIC 55)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 153
SUBTOTAL 153
BUSINESS SERVICES (SIC 73)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
073 CHEMISTS, EXCEPT BIOCHEMISTS 1,475
 226
075 GEOLOGISTS AND GEODESISTS 28
216 ENGINEERING TECHNICIANS, N.E.C. 211
 141
719 MOLDING AND CASTING MACHINE OPERATORS 789
 541
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 995
SUBTOTAL 3,498
 908
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) Total # Employees
(Male & Female)		 Total # Female
Employees
449 MAIDS AND HOUSEMEN 115
 115
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 28
SUBTOTAL 143
 115
TOTAL 81,556 14,807
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.

NIOSH Home | NIOSH Search | Site Index | Contact Us | NOES Home