Method of Research:Audio Recording

This is the random sound that I have record in Bukit Bintang

Method of Research : Survey Question

For my project. I have provide some question which is  survey questionnaire to the public mostly  in urban areas. For this  survey  I focusing on three places which is

• Bukit Bintang
• Bangsar
• Along Federal highway

This is an example of survey question that I had done.

• What are the causes of noise pollution?
• What are the effects of noise pollution on people's health, in general?
• What are the effects of noise pollution on the children's health?
• What are the effects of noise pollution on the environment?
• How can we reduce the noise pollution?
• What are the precautions we can take to avoid noise pollution?

 to  view the question(PDF online view) I have upload to this website. click here

The effect from the noise pollution

The effects

Noise has direct physiological effects to human  such as hearing damage which can be including hearing loss and tinnitus, or ringing in the ears, as well as   cardiovascular and hormonal disturbances. Indirect effects include sleep loss, interference with concentration and learning, mood changes and aggression, and social isolation.

Noise pollution is also becoming huge problem for many animals. Their hearing for detecting predators, finding mates, establishing territory, and recognizing warning alerts. Unnaturally high levels of noise can damage their hearing and can also mask more subtle sounds that they need to hear in order to survive and reproduce. They may also react with a fight-or-flight response to artificial sounds such as aircraft noise, thereby using up valuable energy reserves to flee from a non-existent predator. If noise in urban area becomes too intrusive, animals may shift to a new territory or alter their migration patterns, which can create new complications for their mating and survival.

Noise Pollution effects the environment. As we all known that plants are similar to human being. They are also as sensitive as man. There should be cool and peaceful environment for their better growth. Noise pollution causes poor quality of crops in a pleasant atmosphere.

Noise Pollution Source and the level of Noise (dB)

This is the source and level of each sound that mostly produce a noise pollution

Noise Sources	Noise Levels (dB)
Industrial
Near large gas regulator, as high as	150
Foundry shake-out floor, as high as	128
Automobile assembly line, as high as	125
Large cooling tower (600’ listening distance)	120-130
Construction
Bulldozer (10’ listening distance)	90-105
Oxygen jet drill in quarry (20’ listening distance)	128
Rock drill (jumbo)	122
Transportation
Jet takeoff (100’ listening distance)	130-140
Diesel Truck (200’ listening distance)	85-110
Passenger Car (25’ listening distance)	70-80
Subway (heard from in car or on platform), as high as	110
Community
Heavy Traffic, business area, as high as	110
Pneumatic pavement-breaker (25’ listening distance)	92-98
Power lawn mower (5’listening distance), as high as	95
Barking dog (250’ listening distance), as high as	65
Household
Hi-fi in living room, as high as	125
Kitchen blender	90-95
Electric shaver, in use	75-90

The Chosen Topic :Noise Pollution in urban city

Definition of noise pollution 

The definition of noise pollution is can be elaborate as a type of energy pollution in which  distracting,irritating, or damaging sounds are freely audible. Noise pollution contaminants are not physical particles, but rather waves that interfere with naturally-occurring waves of a similar type in the same environment. Sounds are considered noise pollution if they adversely affect wildlife, human activity, or are capable of damaging physical structures on a regular, repeating basis. In the broadest sense of the term, a sound may be considered noise pollution if it disturbs any natural process or causes human harm, even if the sound does not occur on a regular basis.

Measurement for sound

Sound is transmitted in series through the air with the wave compressed. When it comes to sound, there are three terms that can connected with it, the strength, pitch or frequency. Strength calculated in units of decibels (dB). Decibel is a ratio expressed on a logarithmic scale. This logarithmic scale takes care of wide range of sound power, intensity and pressure. The decibel (dB) scale begins from zero, which represents the faintest sound, which is audible to a normal ear. Decibel (dB) is used in environmental noise pollution as a measure of sound power level, sound intensity level and sound pressure level. A decibel is a physical unit based on the weakest sound that can be detected by the human ear. It is named after Alexander Graham Bell, the inventor of the telephone. Our human ear sensitivity to noise in the range of 20 to 20,000.

Sources of noise pollution

People living in urban city  complained about the noise from automobile traffic, overhead airplanes and helicopters, leaf blowers, pneumatic drills, and neighbors who play their televisions and stereos much too loudly. Large urban areas are being inundated by unwanted sounds. These sounds or noises are disturbing, disrupting ongoing activities and peaceful interludes. One cannot concentrate on a work project if there is constant drilling at a nearby construction site. It is virtually impossible to enjoy a television program when overhead jets frequently drown out its sound. It is difficult to fall asleep if your upstairs neighbor's stereo system is blasting away.

           There are many sources of noise pollution that created in urban areas. The sources in general may be stationary or mobile. The example of stationary sources is such as when use of loudspeakers on various occasions like festivals, elections, worships in temples, mosques and during advertisements, mining operations, use of bulldozers, drillers and dynamites to break rocks, household gadgets like vacuum cleaner, TV, radio, stereo, grinder, mixer. In the other hand, mobile sources can be classified in Transportation / Traffic noise (Road Traffic or Highway Noise), Industrial noise, Noise from construction work and also Neighborhood noise.