TRENDS IN HEARING PROTECTOR USAGE IN AMERICAN MANUFACTURING FROM 1972TO 1989

This study investigated the trends in hearing protector use in United States manufacturing industries. Using data from the National Institut e for Occupational Safety and Health-sponsored National Occupational H azard Survey (1972), the National Occupational Exposure Survey (1983), and the Occupational Safety and Heath Administration-sponsored Nation al Survey of Personal Protective Equipment Usage (1989), estimates wer e made of numbers of workers using hearing protection in various indus tries. Unique to this study is discussion of the impact of enactment o f hearing conservation regulations during the same time frame as the t wo earlier surveys. In general, higher percentages of workers utilized hearing protection in 1989 than in 1972. Increased hearing protection use over time was also found when size of facility (number of employe es) was taken into account. Differences in the use of hearing protecti on over the period 1972-1989 varied in individual industries, ranging from less than 10 to more than 30%.