HEAVY CONSTRUCTION CONTRACTORS (SIC 16)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
558	SUPERVISORS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	122
567	CARPENTERS	100.0%	0.0%	0.0%	0.0%	0.0%	122
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	100.0%	0.0%	0.0%	0.0%	0.0%	366
588	CONCRETE AND TERRAZZO FINISHERS	100.0%	0.0%	0.0%	0.0%	0.0%	122
779	MACHINE OPERATORS, NOT SPECIFIED	100.0%	0.0%	0.0%	0.0%	0.0%	488
869	CONSTRUCTION LABORERS	100.0%	0.0%	0.0%	0.0%	0.0%	1,830
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	3,050
SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	100.0%	0.0%	0.0%	0.0%	0.0%	2,252
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	2,252
FOOD AND KINDRED PRODUCTS (SIC 20)
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%	1,147
453	JANITORS AND CLEANERS	100.0%	0.0%	0.0%	0.0%	0.0%	626
756	MIXING AND BLENDING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	1,251
877	STOCK HANDLERS AND BAGGERS	100.0%	0.0%	0.0%	0.0%	0.0%	313
889	LABORERS, EXCEPT CONSTRUCTION	100.0%	0.0%	0.0%	0.0%	0.0%	521
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	3,858
LUMBER AND WOOD PRODUCTS (SIC 24)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
518	INDUSTRIAL MACHINERY REPAIRERS	100.0%	0.0%	0.0%	0.0%	0.0%	90
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	90
PAPER AND ALLIED PRODUCTS (SIC 26)
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%	82
073	CHEMISTS, EXCEPT BIOCHEMISTS	50.0%	0.0%	50.0%	0.0%	0.0%	11
216	ENGINEERING TECHNICIANS, N.E.C.	14.3%	0.0%	85.7%	0.0%	0.0%	38
453	JANITORS AND CLEANERS	100.0%	0.0%	0.0%	0.0%	0.0%	139
519	MACHINERY MAINTENANCE OCCUPATIONS	100.0%	0.0%	0.0%	0.0%	0.0%	8
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	100.0%	0.0%	0.0%	0.0%	0.0%	38
696	STATIONARY ENGINEERS	100.0%	0.0%	0.0%	0.0%	0.0%	5
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	24
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	16
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	0.0%	0.0%	0.0%	0.0%	100.0%	24
779	MACHINE OPERATORS, NOT SPECIFIED	100.0%	0.0%	0.0%	0.0%	0.0%	106
783	WELDERS AND CUTTERS	100.0%	0.0%	0.0%	0.0%	0.0%	22
878	MACHINE FEEDERS AND OFFBEARERS	100.0%	0.0%	0.0%	0.0%	0.0%	16
889	LABORERS, EXCEPT CONSTRUCTION	89.7%	0.0%	0.0%	0.0%	10.3%	79
SUBTOTAL		88.4%	0.0%	6.2%	0.0%	5.2%	608
PETROLEUM AND COAL PRODUCTS (SIC 29)
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%	100.0%	0.0%	293
225	SCIENCE TECHNICIANS, N.E.C.	0.0%	0.0%	0.0%	100.0%	0.0%	189
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	0.0%	0.0%	0.0%	100.0%	0.0%	279
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	14
SUBTOTAL		1.8%	0.0%	0.0%	98.1%	0.0%	775
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	0.0%	0.0%	0.0%	0.0%	100.0%	36
SUBTOTAL		0.0%	0.0%	0.0%	0.0%	100.0%	36
STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
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%	154
453	JANITORS AND CLEANERS	20.8%	0.0%	79.2%	0.0%	0.0%	310
549	NOT SPECIFIED MECHANICS AND REPAIRERS	100.0%	0.0%	0.0%	0.0%	0.0%	388
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	0.0%	0.0%	52.2%	47.8%	0.0%	707
719	MOLDING AND CASTING MACHINE OPERATORS	0.0%	0.0%	100.0%	0.0%	0.0%	399
753	CEMENTING AND GLUING MACHINE OPERATORS	0.0%	0.0%	100.0%	0.0%	0.0%	123
756	MIXING AND BLENDING MACHINE OPERATORS	40.6%	0.0%	59.4%	0.0%	0.0%	621
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	0.0%	0.0%	100.0%	0.0%	0.0%	123
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	0.0%	0.0%	100.0%	0.0%	0.0%	31
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	388
SUBTOTAL		38.4%	0.0%	51.1%	10.4%	0.0%	3,244
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
045	METALLURGICAL AND MATERIALS ENGINEERS	100.0%	0.0%	0.0%	0.0%	0.0%	64
055	ELECTRICAL AND ELECTRONIC ENGINEERS	100.0%	0.0%	0.0%	0.0%	0.0%	5
073	CHEMISTS, EXCEPT BIOCHEMISTS	100.0%	0.0%	0.0%	0.0%	0.0%	19
216	ENGINEERING TECHNICIANS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	40
224	CHEMICAL TECHNICIANS	100.0%	0.0%	0.0%	0.0%	0.0%	37
363	PRODUCTION COORDINATORS	100.0%	0.0%	0.0%	0.0%	0.0%	8
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	100.0%	0.0%	0.0%	0.0%	0.0%	8
374	MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C.	40.0%	0.0%	0.0%	0.0%	60.0%	13
453	JANITORS AND CLEANERS	1.9%	32.7%	65.4%	0.0%	0.0%	3,433
516	HEAVY EQUIPMENT MECHANICS	100.0%	0.0%	0.0%	0.0%	0.0%	11
518	INDUSTRIAL MACHINERY REPAIRERS	100.0%	0.0%	0.0%	0.0%	0.0%	21
519	MACHINERY MAINTENANCE OCCUPATIONS	100.0%	0.0%	0.0%	0.0%	0.0%	27
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	100.0%	0.0%	0.0%	0.0%	0.0%	88
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	0.0%	0.0%	0.0%	0.0%	100.0%	11
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	100.0%	0.0%	0.0%	0.0%	0.0%	37
544	MILLWRIGHTS	100.0%	0.0%	0.0%	0.0%	0.0%	717
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	93
549	NOT SPECIFIED MECHANICS AND REPAIRERS	100.0%	0.0%	0.0%	0.0%	0.0%	16
563	BRICKMASONS AND STONEMASONS	100.0%	0.0%	0.0%	0.0%	0.0%	5
575	ELECTRICIANS	100.0%	0.0%	0.0%	0.0%	0.0%	43
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	100.0%	0.0%	0.0%	0.0%	0.0%	48
637	MACHINISTS	100.0%	0.0%	0.0%	0.0%	0.0%	32
643	BOILERMAKERS	100.0%	0.0%	0.0%	0.0%	0.0%	40
689	INSPECTORS, TESTERS, AND GRADERS	100.0%	0.0%	0.0%	0.0%	0.0%	13
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	0.0%	0.0%	0.0%	50.0%	50.0%	66
696	STATIONARY ENGINEERS	100.0%	0.0%	0.0%	0.0%	0.0%	3
704	LATHE AND TURNING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	3
707	ROLLING MACHINE OPERATORS	74.5%	0.0%	0.0%	0.0%	25.5%	125
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	24
724	HEAT TREATING EQUIPMENT OPERATORS	83.3%	0.0%	0.0%	0.0%	16.7%	48
727	SAWING MACHINE OPERATORS	0.0%	0.0%	0.0%	0.0%	100.0%	3
756	MIXING AND BLENDING MACHINE OPERATORS	41.4%	0.0%	0.0%	58.6%	0.0%	52
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	92.0%	0.0%	0.0%	0.0%	8.0%	133
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	13
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	0.2%	16.8%	67.5%	15.4%	0.0%	11,847
768	CRUSHING AND GRINDING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	5
769	SLICING AND CUTTING MACHINE OPERATORS	0.0%	0.0%	0.0%	0.0%	100.0%	13
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	13
779	MACHINE OPERATORS, NOT SPECIFIED	64.3%	0.0%	0.0%	0.0%	35.7%	37
783	WELDERS AND CUTTERS	100.0%	0.0%	0.0%	0.0%	0.0%	19
785	ASSEMBLERS	100.0%	0.0%	0.0%	0.0%	0.0%	117
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	100.0%	0.0%	0.0%	0.0%	0.0%	69
797	PRODUCTION TESTERS	100.0%	0.0%	0.0%	0.0%	0.0%	21
798	PRODUCTION SAMPLERS AND WEIGHERS	100.0%	0.0%	0.0%	0.0%	0.0%	8
804	TRUCK DRIVERS, HEAVY	100.0%	0.0%	0.0%	0.0%	0.0%	5
849	CRANE AND TOWER OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	51
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	21
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	0.8%	33.1%	66.1%	0.0%	0.0%	1,992
873	PRODUCTION HELPERS	100.0%	0.0%	0.0%	0.0%	0.0%	72
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	85
889	LABORERS, EXCEPT CONSTRUCTION	86.4%	0.0%	0.0%	0.0%	13.6%	117
SUBTOTAL		12.1%	19.0%	58.4%	9.5%	0.7%	19,791
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	0.0%	0.0%	100.0%	0.0%	0.0%	2,076
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	0.0%	0.0%	100.0%	0.0%	0.0%	56
769	SLICING AND CUTTING MACHINE OPERATORS	0.0%	0.0%	100.0%	0.0%	0.0%	673
SUBTOTAL		0.0%	0.0%	100.0%	0.0%	0.0%	2,805
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	347
779	MACHINE OPERATORS, NOT SPECIFIED	100.0%	0.0%	0.0%	0.0%	0.0%	44
873	PRODUCTION HELPERS	100.0%	0.0%	0.0%	0.0%	0.0%	347
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	738
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	35
SUBTOTAL		0.0%	0.0%	0.0%	100.0%	0.0%	35
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	0.0%	0.0%	79.3%	20.7%	0.0%	199
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	0.0%	0.0%	100.0%	0.0%	0.0%	10
779	MACHINE OPERATORS, NOT SPECIFIED	0.0%	0.0%	50.0%	50.0%	0.0%	7
888	HAND PACKERS AND PACKAGERS	0.0%	0.0%	100.0%	0.0%	0.0%	11
SUBTOTAL		0.0%	0.0%	80.3%	19.6%	0.0%	227
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	100.0%	0.0%	0.0%	0.0%	0.0%	824
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	56
SUBTOTAL		93.6%	0.0%	0.0%	6.3%	0.0%	880
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	207
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	207
COMMUNICATION (SIC 48)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
527	TELEPHONE LINE INSTALLERS AND REPAIRERS	0.0%	0.0%	100.0%	0.0%	0.0%	225
529	TELEPHONE INSTALLERS AND REPAIRERS	0.0%	0.0%	100.0%	0.0%	0.0%	4,724
SUBTOTAL		0.0%	0.0%	100.0%	0.0%	0.0%	4,949
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
073	CHEMISTS, EXCEPT BIOCHEMISTS	100.0%	0.0%	0.0%	0.0%	0.0%	794
075	GEOLOGISTS AND GEODESISTS	0.0%	0.0%	50.0%	50.0%	0.0%	56
216	ENGINEERING TECHNICIANS, N.E.C.	0.0%	0.0%	96.0%	4.0%	0.0%	700
SUBTOTAL		51.2%	0.0%	45.1%	3.6%	0.0%	1,550
HEALTH SERVICES (SIC 80)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
096	PHARMACISTS	0.0%	0.0%	0.0%	100.0%	0.0%	237
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	78.8%	0.0%	0.0%	0.0%	21.2%	1,053
224	CHEMICAL TECHNICIANS	100.0%	0.0%	0.0%	0.0%	0.0%	119
446	HEALTH AIDES, EXCEPT NURSING	46.8%	0.0%	47.0%	6.2%	0.0%	1,243
453	JANITORS AND CLEANERS	100.0%	0.0%	0.0%	0.0%	0.0%	532
SUBTOTAL		64.7%	0.0%	18.3%	9.8%	7.0%	3,184
TOTAL		37.4%	7.8%	46.5%	7.2%	0.9%	48,279
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.