National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by Occupation*

Agent Name MAGNESIUM TRISILICATE
CAS # 14987-04-3
RTECS #
Agent Code 80452

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
095 REGISTERED NURSES 4,301 4,301
096 PHARMACISTS 878 435
225 SCIENCE TECHNICIANS, N.E.C. 1,185 474
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 94 3
365 STOCK AND INVENTORY CLERKS 11  
368 WEIGHERS, MEASURERS, AND CHECKERS 43  
446 HEALTH AIDES, EXCEPT NURSING 364 189
447 NURSING AIDES, ORDERLIES, AND ATTENDANTS 2,011 2,011
458 HAIRDRESSERS AND COSMETOLOGISTS 2,271 1,817
633 SUPERVISORS, PRODUCTION OCCUPATIONS 1,185  
637 MACHINISTS 460 17
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 202 6
779 MACHINE OPERATORS, NOT SPECIFIED 1,010 580
785 ASSEMBLERS 2,079 244
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 145 14
797 PRODUCTION TESTERS 43  
889 LABORERS, EXCEPT CONSTRUCTION 3,791  
TOTAL 20,072 10,091

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (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.

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