OIL AND GAS EXTRACTION (SIC 13)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
055	ELECTRICAL AND ELECTRONIC ENGINEERS	612
SUBTOTAL		612
GENERAL BUILDING CONTRACTORS (SIC 15)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	293
SUBTOTAL		293
HEAVY CONSTRUCTION CONTRACTORS (SIC 16)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	78
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	8,621	539
783	WELDERS AND CUTTERS	1,185
SUBTOTAL		9,884	539
SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
053	CIVIL ENGINEERS	146
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	1,629
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	1,680
549	NOT SPECIFIED MECHANICS AND REPAIRERS	903
558	SUPERVISORS, N.E.C.	374
575	ELECTRICIANS	730
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	42,568	40
597	STRUCTURAL METAL WORKERS	1,196
804	TRUCK DRIVERS, HEAVY	283
869	CONSTRUCTION LABORERS	1,007
SUBTOTAL		50,516	40
FOOD AND KINDRED PRODUCTS (SIC 20)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	235
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	524
575	ELECTRICIANS	122
806	DRIVER-SALES WORKERS	215
SUBTOTAL		1,096
TOBACCO MANUFACTURES (SIC 21)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	167	3
SUBTOTAL		167	3
TEXTILE MILL PRODUCTS (SIC 22)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	248
549	NOT SPECIFIED MECHANICS AND REPAIRERS	81
SUBTOTAL		329
APPAREL AND OTHER TEXTILE PRODUCTS (SIC 23)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
215	MECHANICAL ENGINEERING TECHNICIANS	108
453	JANITORS AND CLEANERS	1,741	46
518	INDUSTRIAL MACHINERY REPAIRERS	471
549	NOT SPECIFIED MECHANICS AND REPAIRERS	231
633	SUPERVISORS, PRODUCTION OCCUPATIONS	476	242
SUBTOTAL		3,027	288
LUMBER AND WOOD PRODUCTS (SIC 24)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
644	PRECISION GRINDERS, FITTERS, AND TOOL SHARPENERS	73
SUBTOTAL		73
FURNITURE AND FIXTURES (SIC 25)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	94
SUBTOTAL		94
PAPER AND ALLIED PRODUCTS (SIC 26)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	110
453	JANITORS AND CLEANERS	1,184
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	14
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	22
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	110
769	SLICING AND CUTTING MACHINE OPERATORS	1,212	165
784	SOLDERERS AND BRAZERS	11
SUBTOTAL		2,663	165
PRINTING AND PUBLISHING (SIC 27)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	9
453	JANITORS AND CLEANERS	251
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	113
549	NOT SPECIFIED MECHANICS AND REPAIRERS	14
575	ELECTRICIANS	285
719	MOLDING AND CASTING MACHINE OPERATORS	65
734	PRINTING MACHINE OPERATORS	65
736	TYPESETTERS AND COMPOSITORS	1,186	28
873	PRODUCTION HELPERS	14
889	LABORERS, EXCEPT CONSTRUCTION	560
SUBTOTAL		2,562	28
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	1,122
518	INDUSTRIAL MACHINERY REPAIRERS	137	7
575	ELECTRICIANS	346
637	MACHINISTS	57
756	MIXING AND BLENDING MACHINE OPERATORS	605	510
783	WELDERS AND CUTTERS	751
785	ASSEMBLERS	886	354
878	MACHINE FEEDERS AND OFFBEARERS	382	287
SUBTOTAL		4,286	1,158
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	3
SUBTOTAL		3
STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
575	ELECTRICIANS	148
633	SUPERVISORS, PRODUCTION OCCUPATIONS	12
783	WELDERS AND CUTTERS	194
SUBTOTAL		354
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
225	SCIENCE TECHNICIANS, N.E.C.	29
453	JANITORS AND CLEANERS	1,122
575	ELECTRICIANS	577	16
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	203
723	METAL PLATING MACHINE OPERATORS	37
724	HEAT TREATING EQUIPMENT OPERATORS	88
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	247
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	1,049
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	2,348
779	MACHINE OPERATORS, NOT SPECIFIED	95
849	CRANE AND TOWER OPERATORS	49
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	659
SUBTOTAL		6,503	16
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	63
365	STOCK AND INVENTORY CLERKS	322	6
453	JANITORS AND CLEANERS	1,308
575	ELECTRICIANS	646
633	SUPERVISORS, PRODUCTION OCCUPATIONS	793
645	PATTERNMAKERS AND MODEL MAKERS, METAL	415
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	857	857
723	METAL PLATING MACHINE OPERATORS	88	29
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	2,075	830
784	SOLDERERS AND BRAZERS	3
785	ASSEMBLERS	18,621	17,408
794	HAND GRINDING AND POLISHING OCCUPATIONS	4,565	415
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	679
SUBTOTAL		30,435	19,545
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
056	INDUSTRIAL ENGINEERS	458	229
057	MECHANICAL ENGINEERS	349
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	573	19
216	ENGINEERING TECHNICIANS, N.E.C.	517	92
235	TECHNICIANS, N.E.C.	695	133
453	JANITORS AND CLEANERS	1,134
518	INDUSTRIAL MACHINERY REPAIRERS	625
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	162
543	ELEVATOR INSTALLERS AND REPAIRERS	3,842
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,005	612
575	ELECTRICIANS	380
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	58
637	MACHINISTS	2,248
645	PATTERNMAKERS AND MODEL MAKERS, METAL	514
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	5,438	3,249
723	METAL PLATING MACHINE OPERATORS	122	23
724	HEAT TREATING EQUIPMENT OPERATORS	86
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	648	389
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	58	12
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	34	11
779	MACHINE OPERATORS, NOT SPECIFIED	517	207
783	WELDERS AND CUTTERS	318
784	SOLDERERS AND BRAZERS	2,211	654
785	ASSEMBLERS	14,684	10,803
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	22
797	PRODUCTION TESTERS	3,996	1,673
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	69
SUBTOTAL		40,763	18,106
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
055	ELECTRICAL AND ELECTRONIC ENGINEERS	1,830	44
059	ENGINEERS, N.E.C.	224	72
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	3,959	1,497
225	SCIENCE TECHNICIANS, N.E.C.	225	171
235	TECHNICIANS, N.E.C.	818	115
243	SUPERVISORS AND PROPRIETORS, SALES OCCUPATIONS	633	203
335	FILE CLERKS	407	90
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	6	6
385	DATA-ENTRY KEYERS	1,602	764
386	STATISTICAL CLERKS	85	85
453	JANITORS AND CLEANERS	2,633	1,327
518	INDUSTRIAL MACHINERY REPAIRERS	194	9
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	60	6
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	160	160
549	NOT SPECIFIED MECHANICS AND REPAIRERS	699	70
575	ELECTRICIANS	25
633	SUPERVISORS, PRODUCTION OCCUPATIONS	7	7
637	MACHINISTS	698
645	PATTERNMAKERS AND MODEL MAKERS, METAL	153
647	PRECIOUS STONES AND METALS WORKERS (JEWELERS)	2
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	28,029	23,726
689	INSPECTORS, TESTERS, AND GRADERS	2,742	609
696	STATIONARY ENGINEERS	558	33
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	65
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	568	97
717	FABRICATING MACHINE OPERATORS, N.E.C.	156	153
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	171
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	3,947	590
779	MACHINE OPERATORS, NOT SPECIFIED	1,106	775
783	WELDERS AND CUTTERS	824	344
784	SOLDERERS AND BRAZERS	2,314	1,649
785	ASSEMBLERS	51,445	38,342
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	228	59
797	PRODUCTION TESTERS	270	153
SUBTOTAL		106,843	71,156
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
057	MECHANICAL ENGINEERS	98
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	43
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	161
214	INDUSTRIAL ENGINEERING TECHNICIANS	14
215	MECHANICAL ENGINEERING TECHNICIANS	65
216	ENGINEERING TECHNICIANS, N.E.C.	324	238
225	SCIENCE TECHNICIANS, N.E.C.	50
235	TECHNICIANS, N.E.C.	50	14
365	STOCK AND INVENTORY CLERKS	114
453	JANITORS AND CLEANERS	1,645
503	SUPERVISORS, MECHANICS AND REPAIRERS	65
514	AUTOMOBILE BODY AND RELATED REPAIRERS	55
515	AIRCRAFT MECHANICS, EXC. ENGINE	55	22
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	9	3
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	3
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	28
549	NOT SPECIFIED MECHANICS AND REPAIRERS	36
575	ELECTRICIANS	364
633	SUPERVISORS, PRODUCTION OCCUPATIONS	65
636	PRECISION ASSEMBLERS, METAL	22	14
637	MACHINISTS	938	136
645	PATTERNMAKERS AND MODEL MAKERS, METAL	50	50
653	SHEET METAL WORKERS	107
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	1,380	844
689	INSPECTORS, TESTERS, AND GRADERS	87	14
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	9
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	83	14
713	FORGING MACHINE OPERATORS	20
753	CEMENTING AND GLUING MACHINE OPERATORS	27
765	FOLDING MACHINE OPERATORS	49
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	6
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	14
779	MACHINE OPERATORS, NOT SPECIFIED	195
784	SOLDERERS AND BRAZERS	393	228
785	ASSEMBLERS	4,151	1,825
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	109
797	PRODUCTION TESTERS	404	278
SUBTOTAL		11,288	3,680
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
055	ELECTRICAL AND ELECTRONIC ENGINEERS	355	64
059	ENGINEERS, N.E.C.	556	36
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	1,502	149
216	ENGINEERING TECHNICIANS, N.E.C.	690
235	TECHNICIANS, N.E.C.	1,775	1,095
453	JANITORS AND CLEANERS	278
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	109
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	397	331
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	162	109
575	ELECTRICIANS	31
633	SUPERVISORS, PRODUCTION OCCUPATIONS	31
637	MACHINISTS	107
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	6,164	2,129
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	31
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	187	160
784	SOLDERERS AND BRAZERS	956	802
785	ASSEMBLERS	16,281	10,677
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	803	252
797	PRODUCTION TESTERS	560	187
SUBTOTAL		30,975	15,991
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
518	INDUSTRIAL MACHINERY REPAIRERS	268
647	PRECIOUS STONES AND METALS WORKERS (JEWELERS)	1,733	1,539
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	414	64
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	275	27
723	METAL PLATING MACHINE OPERATORS	544	181
727	SAWING MACHINE OPERATORS	20
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	136
779	MACHINE OPERATORS, NOT SPECIFIED	27	27
784	SOLDERERS AND BRAZERS	2,747	1,735
785	ASSEMBLERS	1,656	904
787	HAND MOLDING, CASTING, AND FORMING OCCUPATIONS	118	23
889	LABORERS, EXCEPT CONSTRUCTION	212	46
SUBTOTAL		8,150	4,546
TRUCKING AND WAREHOUSING (SIC 42)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	164
575	ELECTRICIANS	214
SUBTOTAL		378
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	2,127
508	AIRCRAFT ENGINE MECHANICS	6,707	57
515	AIRCRAFT MECHANICS, EXC. ENGINE	107
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	375
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	619
549	NOT SPECIFIED MECHANICS AND REPAIRERS	17
575	ELECTRICIANS	17
637	MACHINISTS	3,317
783	WELDERS AND CUTTERS	798
SUBTOTAL		14,084	57
PIPE LINES, EXCEPT NATURAL GAS (SIC 46)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	599
SUBTOTAL		599
COMMUNICATION (SIC 48)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	483
055	ELECTRICAL AND ELECTRONIC ENGINEERS	285
057	MECHANICAL ENGINEERS	332
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	260
235	TECHNICIANS, N.E.C.	5,393	1,087
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	5,555
527	TELEPHONE LINE INSTALLERS AND REPAIRERS	225
529	TELEPHONE INSTALLERS AND REPAIRERS	9,320	36
689	INSPECTORS, TESTERS, AND GRADERS	356
696	STATIONARY ENGINEERS	307
889	LABORERS, EXCEPT CONSTRUCTION	402	151
SUBTOTAL		22,918	1,274
ELECTRIC, GAS, AND SANITARY SERVICES (SIC 49)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
366	METER READERS	1,495
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	258
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	587	21
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	519
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,388
575	ELECTRICIANS	2,108
577	ELECTRICAL POWER INSTALLERS AND REPAIRERS	691
SUBTOTAL		8,046	21
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
055	ELECTRICAL AND ELECTRONIC ENGINEERS	6,539
073	CHEMISTS, EXCEPT BIOCHEMISTS	654	327
075	GEOLOGISTS AND GEODESISTS	28
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	153
215	MECHANICAL ENGINEERING TECHNICIANS	7
216	ENGINEERING TECHNICIANS, N.E.C.	84	7
224	CHEMICAL TECHNICIANS	87	65
225	SCIENCE TECHNICIANS, N.E.C.	73
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	1,683	1,103
784	SOLDERERS AND BRAZERS	193	42
SUBTOTAL		9,501	1,544
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	1,480	1,480
505	AUTOMOBILE MECHANICS	1,380
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	9,856
526	HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS	248
549	NOT SPECIFIED MECHANICS AND REPAIRERS	346
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	471
SUBTOTAL		13,781	1,480
HEALTH SERVICES (SIC 80)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	169	11
083	MEDICAL SCIENTISTS	41	31
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	313	14
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	32
225	SCIENCE TECHNICIANS, N.E.C.	301
449	MAIDS AND HOUSEMEN	55
453	JANITORS AND CLEANERS	978	35
518	INDUSTRIAL MACHINERY REPAIRERS	576
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	82
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	55
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	241
575	ELECTRICIANS	215
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	85
637	MACHINISTS	14
696	STATIONARY ENGINEERS	136
784	SOLDERERS AND BRAZERS	69
SUBTOTAL		3,362	91
TOTAL		383,585	139,728
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.