| Agent Name | MAGNESIUM HYDROXIDE |
| CAS # | 1309-42-8 |
| RTECS # | |
| Agent Code | 80447 |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 563 | BRICKMASONS AND STONEMASONS | 87.8% |
0.0% |
12.2% |
0.0% |
0.0% |
4,282 |
| 593 | INSULATION WORKERS | 0.0% |
50.0% |
50.0% |
0.0% |
0.0% |
156 |
| 804 | TRUCK DRIVERS, HEAVY | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
268 |
| 869 | CONSTRUCTION LABORERS | 9.0% |
0.0% |
91.0% |
0.0% |
0.0% |
2,984 |
| SUBTOTAL | 55.8% |
1.0% |
43.1% |
0.0% |
0.0% |
7,690 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 534 | HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
821 |
| 563 | BRICKMASONS AND STONEMASONS | 14.1% |
0.0% |
85.9% |
0.0% |
0.0% |
18,758 |
| 565 | TILE SETTERS, HARD AND SOFT | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
5,655 |
| 593 | INSULATION WORKERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
5,557 |
| 595 | ROOFERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
1,851 |
| 596 | SHEETMETAL DUCT INSTALLERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
923 |
| 653 | SHEET METAL WORKERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
755 |
| 869 | CONSTRUCTION LABORERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
35,863 |
| SUBTOTAL | 15.3% |
0.0% |
84.6% |
0.0% |
0.0% |
70,183 | |
| 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% |
391 |
| 637 | MACHINISTS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
1,761 |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
391 |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
147 |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
1,125 |
| SUBTOTAL | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
3,815 | |
| 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% |
43 |
| SUBTOTAL | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
43 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 696 | STATIONARY ENGINEERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
217 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 20.0% |
0.0% |
0.0% |
40.0% |
40.0% |
238 |
| SUBTOTAL | 10.4% |
0.0% |
47.6% |
20.9% |
20.9% |
455 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 036 | INSPECTORS AND COMPLIANCE OFFICERS, EXC. CONSTRUCTION | 0.0% |
0.0% |
66.7% |
33.3% |
0.0% |
190 |
| 048 | CHEMICAL ENGINEERS | 0.0% |
0.0% |
0.0% |
0.0% |
100.0% |
13 |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
190 |
| 224 | CHEMICAL TECHNICIANS | 96.5% |
0.0% |
0.0% |
0.0% |
3.5% |
3,688 |
| 235 | TECHNICIANS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
512 |
| 335 | FILE CLERKS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
104 |
| 368 | WEIGHERS, MEASURERS, AND CHECKERS | 0.0% |
25.0% |
50.0% |
25.0% |
0.0% |
228 |
| 453 | JANITORS AND CLEANERS | 74.7% |
1.5% |
23.0% |
0.7% |
0.0% |
844 |
| 535 | CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS | 0.0% |
0.0% |
0.0% |
0.0% |
100.0% |
39 |
| 549 | NOT SPECIFIED MECHANICS AND REPAIRERS | 0.0% |
25.0% |
50.0% |
25.0% |
0.0% |
1,063 |
| 575 | ELECTRICIANS | 89.0% |
0.0% |
0.0% |
0.0% |
11.0% |
29 |
| 585 | PLUMBERS, PIPEFITTERS, AND STEAMFITTERS | 0.0% |
0.0% |
0.0% |
0.0% |
100.0% |
16 |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 48.8% |
0.0% |
0.0% |
0.0% |
51.2% |
214 |
| 696 | STATIONARY ENGINEERS | 0.0% |
20.0% |
60.0% |
20.0% |
0.0% |
633 |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 31.1% |
13.4% |
42.8% |
12.8% |
0.0% |
3,537 |
| 757 | SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS | 0.0% |
0.0% |
50.0% |
0.0% |
50.0% |
471 |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
35 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 52.1% |
0.0% |
24.0% |
0.0% |
24.0% |
984 |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 0.0% |
0.0% |
50.0% |
50.0% |
0.0% |
1,082 |
| 783 | WELDERS AND CUTTERS | 0.0% |
0.0% |
0.0% |
0.0% |
100.0% |
6 |
| 796 | PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS | 0.0% |
25.0% |
50.0% |
25.0% |
0.0% |
25 |
| 888 | HAND PACKERS AND PACKAGERS | 63.9% |
0.0% |
19.8% |
9.9% |
6.4% |
1,470 |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 74.3% |
0.0% |
25.7% |
0.0% |
0.0% |
222 |
| SUBTOTAL | 50.5% |
6.0% |
27.1% |
10.6% |
5.6% |
15,595 | |
| 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% |
49 |
| 235 | TECHNICIANS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
24 |
| SUBTOTAL | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
73 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 095 | REGISTERED NURSES | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
28 |
| 453 | JANITORS AND CLEANERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
1,348 |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
2,452 |
| SUBTOTAL | 35.9% |
0.0% |
64.0% |
0.0% |
0.0% |
3,828 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 696 | STATIONARY ENGINEERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
85 |
| 709 | GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS | 0.0% |
0.0% |
50.0% |
50.0% |
0.0% |
2,162 |
| 724 | HEAT TREATING EQUIPMENT OPERATORS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
579 |
| 749 | MISCELLANEOUS TEXTILE MACHINE OPERATORS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
306 |
| 856 | INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
25 |
| SUBTOTAL | 21.0% |
0.0% |
44.7% |
34.2% |
0.0% |
3,157 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 534 | HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
62 |
| 593 | INSULATION WORKERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
1,353 |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
505 |
| SUBTOTAL | 3.2% |
0.0% |
96.7% |
0.0% |
0.0% |
1,920 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 059 | ENGINEERS, N.E.C. | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
282 |
| 213 | ELECTRICAL AND ELECTRONIC TECHNICIANS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
5 |
| 224 | CHEMICAL TECHNICIANS | 0.0% |
0.0% |
50.0% |
50.0% |
0.0% |
51 |
| 585 | PLUMBERS, PIPEFITTERS, AND STEAMFITTERS | 0.0% |
0.0% |
50.0% |
50.0% |
0.0% |
5 |
| 683 | ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
42 |
| 789 | HAND PAINTING, COATING, AND DECORATING OCCUPATIONS | 0.0% |
0.0% |
0.0% |
100.0% |
0.0% |
7 |
| SUBTOTAL | 0.0% |
0.0% |
91.0% |
8.9% |
0.0% |
392 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
29 |
| 224 | CHEMICAL TECHNICIANS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
3 |
| 235 | TECHNICIANS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
892 |
| 453 | JANITORS AND CLEANERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
238 |
| 593 | INSULATION WORKERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
400 |
| 696 | STATIONARY ENGINEERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
28 |
| 759 | PAINTING AND PAINT SPRAYING MACHINE OPERATORS | 33.3% |
0.0% |
66.7% |
0.0% |
0.0% |
327 |
| 783 | WELDERS AND CUTTERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
42 |
| 785 | ASSEMBLERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
36 |
| SUBTOTAL | 89.0% |
0.0% |
10.9% |
0.0% |
0.0% |
1,995 | |
| 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 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
10,663 |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
10,663 |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
34,121 |
| SUBTOTAL | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
55,447 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 084 | PHYSICIANS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
411 |
| 095 | REGISTERED NURSES | 99.1% |
0.0% |
0.9% |
0.0% |
0.0% |
50,919 |
| 096 | PHARMACISTS | 84.5% |
0.0% |
0.0% |
15.5% |
0.0% |
2,189 |
| 103 | PHYSICAL THERAPISTS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
41 |
| 206 | RADIOLOGIC TECHNICIANS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
212 |
| 207 | LICENSED PRACTICAL NURSES | 82.3% |
0.0% |
17.7% |
0.0% |
0.0% |
1,595 |
| 208 | HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
520 |
| 446 | HEALTH AIDES, EXCEPT NURSING | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
4,671 |
| 447 | NURSING AIDES, ORDERLIES, AND ATTENDANTS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
4,808 |
| 643 | BOILERMAKERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
91 |
| SUBTOTAL | 98.3% |
0.0% |
1.1% |
0.5% |
0.0% |
65,457 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 684 | MISCELLANEOUS PRECISION WORKERS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
1,643 |
| SUBTOTAL | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
1,643 | |
| TOTAL | 65.8% |
0.4% |
31.8% |
1.3% |
0.4% |
232,646 | |
| 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.