“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








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

Child Sex Trafficking & SRA Abuse - (Video Compilation) - Part 1

The Matrix Deciphered - by Robert Duncan

U.S. Government Surveillance of Citizens - (Video Compilation)

Patent No. 4717343 Method of changing a person's behavior

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

Dr. Robert Duncan on Neuro, Microwave and V2K Weapons Targeting American Citizens

Human Hacking - Advanced Technologies Revealed

Secret Testing - EM-Weapon Through Satellite

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