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

Define glucose and fructose - abnormal constituents of urine, Define Glucos...

Define Glucose and Fructose - Abnormal Constituents of Urine Abnormal Constituents of Urine The detection of abnormal constituents in urine indicates the presence of certa

Scientist, who is the first scientist

who is the first scientist

Person who studies fossils, What is the professional name for the person wh...

What is the professional name for the person who studies fossils? Paleontologist

Why starch is a non-reducing substance, Starch is a non-reducing substance ...

Starch is a non-reducing substance , as except one carbonyl group, all other carbonyl groups are  involved in glycosidic bond  formation. It may be  hydrolyzed by  boiling with hyd

First aid procedure for electric shock, FIRST AID PROCEDURE FOR ELECTRIC SH...

FIRST AID PROCEDURE FOR ELECTRIC SHOCK : Although the procedure described is usually followed, there are occasions when other matters have to be considered and therefore the proce

Explain maintenance of ph - functions of bile, Explain Maintenance of pH - ...

Explain Maintenance of pH - Functions of Bile Maintenance of pH: Bile neutralises the hydrochloric acid and helps to maintain a suitable pH. This prevents the injurious effects

What makes a mineral a mineral explain properties of mineral, what makes a ...

what makes a mineral a mineral? The properties of minerals: There are seven main properties that are used to describe and classify any mineral found. All seven properties are

What is autoclaved, Autoclaved Heated  in  an  instrument called  as au...

Autoclaved Heated  in  an  instrument called  as autoclave  in  which  the boiling  point of  water  can  be  elevated  by  increasing pressure more than atmospheric pressure.

Define ribosomes, Define Ribosomes Ribosomes are small, but complex str...

Define Ribosomes Ribosomes are small, but complex structures, approximately 20 to 30 nm in diameter, containing two unequally sized subunits, referred to as large and small sub

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