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ABSTRACT
Global statistics estimated that at the end of 2018, there were 9.3 billion mobile phone subscriptions, today virtually everyone has a cell phone. Should these phones constitute a health hazard it would be a global pandemic. Sound is part of our daily life and sounds produced from phones are closest to us. This study was undertaken to measure the frequency spectra of the sound produced by three phones commonly used in Nigeria to determine if sound level exposures from these phones should warrant the inclusion of a hearing protection programme. Data was collected and evaluated to ascertain the impact of sound from three different types of phones: GSM mobile phone made by Nokia (Nokia 1280), an android phone made by Infinix (Infinix Note 8) and an Iphone made by Apple (iPhone X), using a UT353 BT Mini Sound Meter (Bluetooth Version). The results showed that the total sound pressure levels for Nokia 1280 was 109.63dB and average of 98.83dB. This value exceeds theNIOSH allowable noise exposure levels of 85dB thus there is a cause for concern in using Nokia 1280 to play music for a long time. While the total sound pressure levels for Infinix Note 8 was 96.79dB which was slightly higher than the NIOSH allowable noise exposure levels of 95dB for 1 hour but on average it was found to be in line with the allowable noise exposure levels of 85dB. A similar lower sound level was observed in the Iphone X, an average of 77.25dB and a total of 88.05dB was recorded within an hour period. This is very safe according to the NIOSH
