What is “Safe Noise Level”?
Noise travels through the air. Noise is measured in decibels.
Experts believe that continuous noise levels in excess of 90 decibels can cause loss of hearing and irreversible changes in nervous systems.
The World Health Organization [WHO] has fixed 45 decibels as the safe noise level for a city.
Metropolitan areas in India usually register an average more than 90 decibels.
