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This study employed subjective well structure questionnaires for data collection at three different quarries, namely;
The Freedom Group of company, Somak Industry Nigeria Limited and Beez in Akoko Edo Local Government Area of
Edo State, Nigeria. 50 questionnaires were distributed to quarry workers for their subjective assessment of the effects
of noise on workers without any restrictions. Works at the quarry face and mill processing plants responded quite well.
Based on the results obtained from questionnaires analysis using SPSS (Frequency distribution and bar charts), 20%
of the workers admitted to a change or deterioration in their hearing ability over time, 48% af?rmed that they observe
continuous ringing in the ear after work hours, headache after the day's work was a common experience for about 74%
of the workers and 24% complained of sleep disorder. In light of these, this study suggested that the effects of noise on
the workers would be minimal if the quarry can employ some hearing conservation programs and measures be put in
place.
1. Introduction
Noise is an unwanted sound (Annex, 2009). Sound is
produced by vibrating objects and reaches the listener's ear as
waves in the air or other media. Sound is also a physical event that
comes into existence with waves in which a source forms vibrations
in air pressure and that stimulate the human sense of hearing, this
receives the sound waves and converts it into information, which
are hence relayed to the brain and the brain interprets the
information as sound (Scott et al., 2004).
Noise is an unpleasant, unwanted, disturbing sound.
Sound which is disagreeable, discordant or which interferes with
the reception of wanted sound becomes noise (Cantrell, 2013).
However, Cinar and Sinsogut 2013, described noise as a subjective
concept. Meaning that the effect of noise on individuals, at different
levels, varies due to individual tolerance, yet a high level of noise or
sound is still unaccepted to the human psychological and
physiological composition.
Quarrying is a surface mining method which deals with
the excavation