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NOISE POLLUTION

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by

Christian Flores

on 20 August 2013

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Transcript of NOISE POLLUTION

NOISE POLLUTION
Reporter: Christian V. Flores
Effects of Noise on People
Prepared by: Gerpaz Marie B. Layno
Detail 3
Detail 4
Properties of Sound Waves
Sound Power and Intensity
Levels and the Decibel
Characterization of Noise
Introduction
The rapid growth of industrialization, urbanization, communication, and transport has led to noise pollution in big cities, affecting the common man in offices, institutions and houses.
Noise pollution is proportionately related to developmental and growth related activities. It may also be caused due to unmindful activities of man.
Noise pollution is a serious threat to the life of man, wildlife and non-living things.
Noise pollution has become a major problem not only in advanced countries but also in developing countries.
There is a need to prevent and control the increasing noise pollution because it's effects have far reaching consequences in destroying the ecosystem and deteriorating the qualities of environment.
Though it is impossible to control such pollution completely at this stage, but with certain measures and strict actions, we can reduce noise pollution to its minimum.

Noise Control
Rating System
General Measures of Control
The following general measures can be adopted to control and prevent the occurence of noise pollution:

1.) General Awareness - The people must be educated through films, newspapers, radio and other sources of media about hazards of noise pollution.
2.) Noise reduction at source - The hazard layouts of plants and machinery in factories unneccessarily produce a lot of noise. Such noise can be reduced throughout proper planning and methods of layout.
3.) Screen the noise source - Noise pollution can be reduced if the noise source is screened by thick walls and other absorbing materials
General Measures of Control
4.) Remove main source - The noise level can also be reduced if the source is removed to areas where the noise created is less likely to affect the surroundings.
5.) Reduce traffic pollution - The noise created by vehicles can be reduced by banning honking and streamlining a traffic flow besides ensuring good body and silencer designs. Restrictions on heavy vehicles to ply certain routes during peak traffic hours will also reduced the effects of pollution.
6.) Plantation - Plants are efficient absorbers of noise. In metropolitan cities and industrial towns, the development of green belts ( vegetation) can have a great value in minimizing sound thus reducing noise level.
General Measures of Control
7.) Engineering Approach
Use of silencers, improvement in design, better installation for those motor vehicles and industrial, which creates noise above the low limit.
Construction of walls in highly-noised polluted area.
Plantation of trees and shrubs along the roads and railway lines and around industrial complexes.
8.) Legislative Approach
Coordination of the noise research and control efforts of all concerned department.
Establishment of the criteria for concern about noise, efforts of noise on health and welfare.
Identification of major sources of noise.
Reporter: Villajuan, Mello Joy
Full transcript