Noise

Running Head : INDUSTRIAL HYGIENE - NOISE

Industrial Hygiene - Noise

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Introduction

Noise is defined as sound which is generally loud , unwanted and not pleasant . In some settings , noise is unexpected and hard to control (Bronzaft , 1996 . It is persistent not only in metropolitan and congested areas but more importantly in industrial facilities

The unit of noise level , decibel (dB , is measured in a logarithmic scale (Dawson , 2005 . This means that a small numeric increase indicates a huge increase in

the intensity . For example , a whisper would measure 20 dB while a thunder averages 110-120 dB on the scale

Industrialization has consequently led to a considerable noise level intensification in industrial sites to a point that noise is regarded as a probable health risk (Prasanth and Sridhar , 2008 . Although the obvious harmful effect of noise is on the hearing capacity of a person numerous studies have already pointed out that noise not only has physiological impact on an exposed person but psychological effects as well . Noise was shown to have harmful effects that include hearing damage , sleeping dis and even effects on cardiovascular functions and on fetal growth (Babisch , 2005

Noise intensities and rates of occurrence vary in different manufacturing environments engaging in numerous machine processes . This results to varied effects on exposed workers based on how close they work with the machineries and how long and how often they are in such a situation . An additional factor is the varying sensitivity...