Noise Pollution

Noise is defined as unwanted sound. Mild noise can be annoying; excessive noise can destroy a person’s hearing. People do not easily become accustomed to noise. The slightest unwanted sound can become very annoying if it continues for any length of time.


Main causes of noise pollution are listed under:

  • Auto/Motorcycle rickshaws
  • Pressure horns
  • Faulty vehicles
  • Loud speakers and musical instruments
  • Industrial/engineering workshops in urban areas


Noise pollution can have the following effects:

  • Hearing loss
  • Cardiovascular problems associated with accelerated heartbeat and high blood pressure
  • Gastric intestinal problems
  • Decrease in alertness
  • Decrease in ability to memorize
  • Long lasting effects like insomnia, nervousness, bulimia, chronically high blood pressure, anxiety, depression and sexual dysfunction


Some simple and useful remedies are stated in the following to control noise pollution:

  • Use of low pitch horns and effective silencer in vehicles
  • Proper service and tuning of vehicles
  • Use of 4-stroke engines
  • Adaptation of noise control systems in industries
  • Avoid excessive use of loud speakers and sound systems