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UNC Asheville's Spring 2013 Symposium has ended

 

 

 

 

 

Wednesday, April 24 • 9:00am - 10:30am
Impacts of Leisure Activity Noise Levels, Revised (A Case Study)

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A 1991 article in International Journal of Industrial Ergonomics discussed the effects of leisure noise levels on workers’ hearing loss. With an observed change in noise level preferences, this study examined measured observations to determine that leisure noise levels were consistent with the data collected in 1990.  However, in some indoor leisure environments levels have increased.  This study’s purposes was to document current leisure activities and determine if the leisure noise level preferences and tolerances are indeed higher than Occupational Health and Safety Administration (OSHA) and International Standards Organization (ISO) guidelines.  Industries have taken steps to comply with OSHA and ISO guidelines; however, churches, bars, and sporting events examined are not subject to the guidelines.   Noise samples using a Quest SPL (2800) calibrated dosimeter were collected. Average peak levels were as follows: churches (115.24 dB, σ of 5.06 dB), bars (114.08 dB, σ of 8.3 dB), and athletic events (117.57 dB, σ of 5.6 dB).   Any noise level above 115.0 dB for any exposure time exceeds the OSHA and ISO allowances.  Changes of 3 dB can double the noise level depending on frequency.  Working adults exposed to these levels after a day’s work in OSHA-controlled environments are exceeding allowable exposure. Thus the risk of permanent threshold shift is increased Although a child’s auditory system is fully developed at birth, early exposure to noise levels that exceed the health and safety standards are at higher risk of permanent threshold shift at an earlier age than their parents.


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Wednesday April 24, 2013 9:00am - 10:30am EDT
Wilma Sherrill Center Concourse