6. What do you mean by noise pollution? What are the main causes of noise pollution?
Answers
Answer:
Noise pollution, also known as environmental noise or sound pollution, is the propagation of noise with ranging impacts on the activity of human or animal life, most of them harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport, and propagation systems.
There are many sources of noise pollution, but here are some of the main ones:
Traffic noise
Traffic noise accounts for most polluting noise in cities. For example, a car horn produces 90 dB and a bus produces 100 dB.
Air traffic noise
There are fewer aircraft flying over cities than there are cars on the roads, but the impact is greater: a single aircraft produces 130 dB.
Construction sites
Building and car park construction and road and pavement resurfacing works are very noisy. For example, a pneumatic drill produces 110 dB.
Catering and night life
Bars, restaurants and terraces that spill outside when the weather is good can produce more than 100 dB. This includes noise from pubs and clubs.
Animals
Noise made by animals can go unnoticed, but a howling or barking dog, for example, can produce around 60-80 dB.
Explanation:
Answer:
The emission of unwanted and uncomfortable sound which is harsh to ears is known as sound pollution.
Some of the major factors of sound pollution are:
- machineries
- factory
- loudspeaker
- construction sites
- festivals