“Independent Researcher, Librarian, Music Educator and Composer" - Ted Hunter

Public and Environmental Health - Noise Reduction



Noise level is measured in decibels (dB). The louder the noise, the higher the decibels. Decibels can be adjusted to human hearing. Noise level is thus described in decibels A (dBA). The effects of noise vary with the noise to which a person is exposed. Prolonged exposure to loud noises (75 dBA over eight hours a day for years) can lead to hearing loss. The body can also respond to lower noise levels: sleep can be disturbed by an outdoor noise of 40 dBA.


Protect Your Hearing: Intensity and Duration of Noise








MLM Gateway - Helping network marketers build their business


Why Noise Pollution Is More Dangerous Than We Think



Why noise is bad for your health -- and what you can do about it | Mathias Basner



Comments

Popular Posts - Last 30 days

U.S. Government Domestic Terrorism, False Flag & Manchurian Candidates

Video: New Brain Computer Interface Technology - Steve Hoffman | TEDxCEIBS

Patent No. 3951134 Apparatus and method for remotely monitoring and altering brain waves

The Matrix Deciphered - by Robert Duncan

Human Hacking - Advanced Technologies Revealed

Patent No. US20060071122A1 Full body teleportation system

Govt. Mind Control Programs: DOD Voice of God, Hypnosis, RF Bioweapon Torture, Hive Minds, AI, etc.

Secret Testing - EM-Weapon Through Satellite

U.S. Government Using Electronic Torture to Mimic Mental Illness

Dr. James Giordano - “The Brain is the Battlefield of the Future”