Noise Pollution - 0401-142, University of Sharjah, PDF
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Uploaded by WorkableCliff4965
University of Sharjah
Dr. Shorjo Bhattacharjee
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Summary
This document is a presentation on noise pollution, specifically focusing on its impact on human health and marine animals. It details the sources of noise pollution, including transportation systems, industrial machines, and recreational activities. It further evaluates ways to mitigate the effects of noise through noise control methods and other solutions.
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0401-142 MAN AND THE ENVIRONMENT TOPIC 5: NOISE POLLUTION DR. SHORJO BHATTACHARJEE SOUND Sound is a pressure wave Level of sound is measured using Decibel (Db) NOISE POLLUTION It is the disturbing or excessive sound that may harm the activity or balance of human or animal life Sound be...
0401-142 MAN AND THE ENVIRONMENT TOPIC 5: NOISE POLLUTION DR. SHORJO BHATTACHARJEE SOUND Sound is a pressure wave Level of sound is measured using Decibel (Db) NOISE POLLUTION It is the disturbing or excessive sound that may harm the activity or balance of human or animal life Sound becomes unwanted when it either interferes with normal activities such as sleeping, conversation, or disrupts or diminishes one’s quality of life. Noise pollution can damage physiological and psychological health. NOISE POLLUTION Major community noise sources: Transportation Aircrafts Vehicles Trains Construction noise Industrial processing (machines) Recreation & sports IMPACT OF NOISE ON HUMAN HEALTH https://www.healthline.com/health/noise-induced-hearing-loss SAFE EXPOSURE TIMES Exposure Time dB Instantaneous permanent damage 140+ Less than one second 130 Less than ten seconds 120 Threshold of pain 1.5 minutes 110 15 minutes 100 2.5 hours 90 8 hours 85 Prolonged exposure to noise levels 85dB and 80 higher can result in permanent hearing loss. 70 60 50 40 30 20 10 Common noise levels (dB) 0 https://www.westone.com/ NOISE CONTROL TECHNIQUES Fundamental concepts to control noise: Reduce noise at the source Block or Increase the path of noise Protect the recipient SOME SOLUTIONS FOR NOISE POLLUTION Regular servicing of automobiles. Servicing and lubrication of machinery. Planting around sound generating sources. Buildings with suitable noise absorbing materials. Soundproof doors and windows in construction. Hearing protection equipment for workers. Regulations to restrict the usage of loudspeakers in public places. Social awareness programs to educate the public about noise pollution. NOISE POLLUTION AFFECTING MARINE ANIMALS In recent decades, the level of marine noise pollution has increased significantly due to the intensification of fishing, shipping, and infrastructure development. https://wildwhales.org/threats/underwater-noise/ THANKS 11
