Q. Find out the methods to minimise sound pollution in town

A
Plant trees on the road side
B
Avoid air horns and loud speakers
C
Obey the laws to control noise pollution
D
All of these above
Solution:

? The unit of sound level is decibel (db) . This can be measured by an instrument called decibel meter.

? Sound higher than 120 db are painful to the ear.

? The permissible sound limit in various occasions

? Silence zone in daytime = 50db, Night= 40 db

? Residential areas Daytime- 55 db Night time- 45 db

?Commercial area Daytime- 65 db Night time- 55db

? Industrial area Day time -75db Night time -70 db

Entri Contact Image

Get Expert Advice for Free: Register for Your Free Consultation Now!