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

Explain the serum creatinine test, Explain the Serum Creatinine Test Cr...

Explain the Serum Creatinine Test Creatinine is a breakdown product of creatine, an important component of muscle. A serum creatinine test measures the amount of creatinine in

Define universal donor and recipients, Define Universal Donor and Recipient...

Define Universal Donor and Recipients Based on the above mentioned concept, O group individuals are sometimes considered as 'universal donors ', since they have no antigens an

Accident reporting-accidents and first aid, ACCIDENT REPORTING To start...

ACCIDENT REPORTING To start with, let us explain two closely related words, accident and incident. Accident is an unexpected or unplanned event. It may cause i) Harm to s

Heart massage for restoring circulation, Heart Massage for Restoring Circul...

Heart Massage for Restoring Circulation : In cases of breathing failure, you should check that the casualty's heart is still beating. This is especially important with victims of

Levels, what would i need to do to achieve a 7C in science , KS3??

what would i need to do to achieve a 7C in science , KS3??

Explain the role of secretin, Explain the Role of secretin Secretin is ...

Explain the Role of secretin Secretin is a polypeptide containing 27 amino acids. It is present in the mucosa of the upper small intestine in an inactive form prosecretin. When

Explain the simple cells - primary visual cortex, Explain the Simple Cells ...

Explain the Simple Cells - Primary Visual Cortex They are most sensitive to lines oriented in a particular angle to the vertical. Simple cells probably receive a convergence of

EM13229711, AAddress the influence of internal and environmental conditions...

AAddress the influence of internal and environmental conditions on what is recalled from certain kinds of memory/representations (e.g., things remembered rote, such as one''s phone

Protozoan, what is the scientific classification of a protozoan

what is the scientific classification of a protozoan

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