Tuesday, 23 October 2018

Possible Preventive Measures to Noise Pollution


The control of noise pollution and prevention of noise trauma can be achieved by using the following measures:
·         Reduction of Noise Production: By using less noisy machines and by fitting noise mufflers and silencers.
·         Appropriate heath education: to workers, employers and the general public about the effect of noise on heath and the related preventive measure.
·         Vegetation (trees) along roads and in residential areas is a good way to reduce noise pollution as they absorb sound.

The Managers Attitude towards Noise Pollution


Unuraye (2008) stated that, the control and management can be one through implementation of laws gathering noise pollution in Nigeria. Overtime, the federal government, through the ministry of environment, provides the funding and the advice and also updates their regulation on noise pollution. They should stimulate fund and it health implication to the people and also help the development qualifier products and effective noise control measures.

Attitudes of the People toward Noise Pollution in Sawmills


Bamber (2009), stated that some people believes that noise does not pose a serious risk to human health he further proved it that noise can cause health risk to man such as hearing loss deafness and irritation.

He also said that, many worker neglect wearing of personal protective equipment due to lack of awareness and while some see noise as a natural talk. However, most people are aware that noise cause damages to human ear drum.

Noise Pressure and Sound Level


Sound is a physical phenomenon of alternating compression and expansion of air that propagate in all directions from a source. These alternating compression and expansion can be described as small changes in pressure around the atmosphere (Olojoba, 2008).

The Implication of Noise Pollution to Human Health


Passchie-Vermeer (2000) stated that, the health implications of noise are the health consequences of elevated sound levels. Elevated in sawmill or at work place or other noise can cause hearing loss or impairment, hypertension, annoyance and sleep disturbance. Noise pollution could take a severe toll on human health in the long run. The effects will become apparent immediately but there could be repercussion later on.

World Health Organization [WHO, 1990] concluded that available evidence showed suggested a week correlation between long-term noise exposure bode 67-70 dB and hypertension.

Causes of Noise Pollution


Unuraye (2008) stated that another nuisance of urban pollution is noise and caused by the clatter and hammering from thousands workshop and different sources which are as follows:
Transportation: (automobiles)
Aircraft noise: Both light plane, large plane, helicopters.
Road traffic noise: Lorry, cars trailers, bus, motorcycles.
Rail traffic
(Olojoba, 2009).

Types of Sawmills


There are two major types of sawmill according to Lennartsfor (1989). They are:
         i.            Chain sawmill
       ii.             Band sawmill

Chain Sawmill: This type of sawmill is use in sawing wood in sawmill is industry with a very low weight and which are use in both stationary and mobile operations. It has an effective cutting length of 5.1m, max log diameter 50cm, supplied with electronic power but can also be delivered ready for the chainsaw with the throttle grip on the chainsaw and anti-vibration adapter, nine-toothed rim for a chain saw sword, “16 or 20” and 1pc, chain 325 antivib light included.