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Jan 26 16 9:37 AM
https://www.paranormalnews.com/newslink.aspx?id=14269
New research from the University of Southampton indicates that the public are being exposed, without their knowledge, to airborne ultrasound. The study found increasing exposure to ultrasound in locations such as railway stations, museums, libraries, schools and sports stadiums, in which there have been complaints of nausea, dizziness, migraine, fatigue and tinnitus. Ultrasound in public places can be generated from a number of sources including loudspeakers, door sensors and public address systems. For a number of years, workers who have been regularly exposed to occupational ultrasound through industrial devices for cleaning and drilling have reported similar negative effects. While there has been insufficient research to confirm or deny a link, the study author Professor Tim Leighton says that current guidelines and research knowledge for occupational safe levels are inadequate to cope with the current mass exposure of large numbers of people.
New research from the University of Southampton indicates that the public are being exposed, without their knowledge, to airborne ultrasound.
The study found increasing exposure to ultrasound in locations such as railway stations, museums, libraries, schools and sports stadiums, in which there have been complaints of nausea, dizziness, migraine, fatigue and tinnitus.
Ultrasound in public places can be generated from a number of sources including loudspeakers, door sensors and public address systems.
For a number of years, workers who have been regularly exposed to occupational ultrasound through industrial devices for cleaning and drilling have reported similar negative effects.
While there has been insufficient research to confirm or deny a link, the study author Professor Tim Leighton says that current guidelines and research knowledge for occupational safe levels are inadequate to cope with the current mass exposure of large numbers of people.
Read more @ http://www.southampton.ac.uk/news/2016/01/tim-leighton-ultrasound.page
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