Noise ContRol

Do we aware about this?

It seem look like simple but. If it continuous happens it will give effect to human health and environment effect. We have to take seriously about this situation. Our government, also take serious about this situation. As in the Malaysia environmental health profile, the following issues had been identified and discussed to be important in Malaysia:

a) Siltation caused by agro-based activities, logging and mining, and infrastructure


b) Deteriorating water quality

c) Marine pollution

d) Air pollution problems

e) Noise Pollution

f) Toxic and Hazardous Waste

g) Solid Waste

h) Deforestation and destruction of biodiversity caused by logging and conversion to other

Land Use

i) Rapid growth in water demand

j) More efficient use of energy required

k) Coastal pollution

l) Transboundary air pollution

We can see the noise pollution is in the 5th important issue. In many developed nations the impact of noise is sufficient to impair the hearing of a large fraction of the population over the course of a lifetime. Noise exposure has also been known to induce tinnitus, hypertension, vasoconstriction and other cardiovascular impacts. Beyond these effects, elevated noise levels can create stress, increase workplace accident rates, and stimulate aggression and other anti-social behaviors as effect for human. Effects of noise on wildlife are reduced migration of birds and other animals, loss of food habitats if animals are driven away, animals in city zoos tend to become lethargic and their health deteriorates, and animals tend not to reproduce, which threatens their survival.

It is important for us to take actions to this situation. Noise control is most effective if it can reduce noise at the source. We can prevent noise at its source by enforcing noise regulations and imposing tougher penalties. For example, introduce penalties for faulty car and burglar alarms and establish noise control zones for cars and aircraft. We also should improve the design and construction of engines and other machinery and subsidise building materials with proven sound proofing properties. Plant vegetation such as trees along roads and around factories and other sources of noise. The denser the vegetation the greater the noise reduction. Reduction is approximately 10 dB for every 100 metres of trees. This is due to absorption by the foliage and scattering of the sound.

Reduce vibrations in machinery, pipework and other equipment, with sufficient support and regular maintenance. Use vibration isolators and mounts on machines, pipes, ducts and electrical conduits. Reduce the speed of moving parts. We need to do more research, for example in creating better and cheaper materials for sound insulation and ways of making things run quieter.

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