Noise level in recreational areas in Mekelle, Ethiopia:ross-sectional study

Abstract

Background: Noise-induced hearing loss is the most common cause of sensorineural
hearing loss following presbycusis. Excessive noise exposure can often occur while
attending leisure activities in bars and restaurants. According to the United States
Occupational Safety and Health Agency, the noise exposure should not exceed 85
decibels (dB) in 8 hours working period per day, nor 95 decibels for just two hours.
Methods: We conducted a prospective cross-sectional study and measured the noise level
in forty-three bars, restaurants, and music clubs in Mekelle, Ethiopia. The measurement
was done around 10:00 pm and midnight in each of the selected houses.
Result: The study showed the mean loudness of 97dB for 10:00 pm while it is 101dB for
-mid-night time, with a standard deviation (SD) of 3 dB and 7 dB, respectively. The
maximum loudness measured was 107 dB and 108 dB, respectively.
Conclusion: According to international standards, many institutions locally surpass
exposure limitations. We suggest that regional and national regulations be placed to limit
exposure and protect the workforce of Ethiopia.