Pollution due to noise, Science

Assignment Help:

Pollution due to Noise:

Sound is an important means of communication,  but high levels of noise could damage hearing, and cause deterioration  in capacity  to concentrate on work. Noise is referred to as unwanted sound that is usually unpleasant. The loudness of  noise is measured in decibels (db). The quietness of a lonely place at night may be represented by, 20 db; a library where people are not supposed even to talk loudly, by 40 db; the sound level when you hear a radio broadcast, by  60 db; a factory or a motor-cycle may produce uncomfortable noise at 100 db, if you stand near a  jet engine of  the airlines it may be hard to bear the noise of  120  db level. High level of noise is harmful to man. Hearing loss begins with prolonged exposure (8 hours or more) to noise at 80-90 db or more. 

Can you  think of  some places where there is high level of noise? The level of noise is very high  in certain industries,  such as the ones dealing with iron and steel manufacture, motor vehicle production, metal products fabrication. printing and publishing, lumbering and wood products, and textile manufacturing. Busy streets in big towns, and the places near the railway tracks are so noisy  that if you were living there, you would hardly be able to sleep.

It is often said that noise pollution is different  from air, soil and water pollution.  let us see how? Noise pollution differs significantly  from air, soil and water pollution in the sense that it decays almost instantaneously and leaves no residues, whereas a majority of  pollutants of air, soil and water remain  as such for very long durations. Now  the question arises how can noise pollution be reduced? Maintenance  of machinery and automobiles, etc. in good condition reduces noise. Loudspeakers which blare music at night during celebrations of  festivals or marriages cause tremendous strain on the whole neighbourhood. Rules that already exists to stop such noise should be enforced by local administration. Planting of trees along roads also reduces noise levels in residential areas or if work places.  

 


Related Discussions:- Pollution due to noise

Dissolution and dilution, Dissolution and dilution : Water soluble1 miscib...

Dissolution and dilution : Water soluble1 miscible chemical wastes which are harmless in high dilution may be run into the drainage with plenty of water. It may be noted that al

Determine about the moisture content of soil, Moisture Content of Soil ...

Moisture Content of Soil As mentioned above the degree of moisture pertains to relative concentration (rather than the absolute amount) of water, independent of the size of sam

When does an atoll start to form, When does an atoll start to form? Thi...

When does an atoll start to form? This starts to form when tiny marine animals - coral polyps - attach themselves to rocks on the seabed.

Explain hiccup reflex actions - respiratory process, Explain Hiccup reflex ...

Explain Hiccup reflex Actions - Respiratory Process It is also a reflex associated with stimulation of sensory endings in the gastrointestinal tract or other tissue through irr

Explain non-protein functions of amino acids, Explain Non-protein Functions...

Explain Non-protein Functions of Amino Acids The non-protein functions of amino acids are presented in the following section. It is interesting to note that the non-protein fun

How to mount fossils, How to mount fossils If you occur to live in a lo...

How to mount fossils If you occur to live in a locality where fossils are plentiful, it will be interesting to have the peoples make a fossil collection for the school museum.

Derive an expression for the natural frequency - beam mass, The simply-supp...

The simply-supported uniform beam shown in the ?gure below supports a mass m at a distance aL from the left support. Assume that the beam is relatively mass-less compared to the ma

Bioenergetics, what is the implication of the first law on humans

what is the implication of the first law on humans

Friction, (friction is necessery evil)

(friction is necessery evil)

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd