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Falmouth's Infrasound Hoax

Research shows low frequency noise (infrasound) from wind turbines is "insignificant in comparison with the background level of infrasound"

Low frequency noise (infrasound) from wind turbines is sometimes cited as causing mysterious harmful effects. However, scientific research in several nations has shown that infrasound from wind turbines is insignificant. Let's take a look at published reports -

2014 Australian Medical Association (AMA) statement on Wind Farms and Health

"The available Australian and international evidence does not support the view that the infrasound or low frequency sound generated by wind farms, as they are currently regulated in Australia, causes adverse health effects on populations residing in their vicinity. The infrasound and low frequency sound generated by modern wind farms in Australia is well below the level where known health effects occur, and there is no accepted physiological mechanism where sub-audible infrasound could cause health effects. "
https://ama.com.au/position-statement/wind-farms-and-health-2014

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MA DEP/DPH "Wind Turbine Health Impact Study: Report of Independent Expert Panel January 2012"

"Claims that infrasound from wind turbines directly impacts the vestibular system have not been demonstrated scientifically. Available evidence shows that the infrasound levels near wind turbines cannot impact the vestibular system.

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a) The measured levels of infrasound produced by modern upwind wind turbines at distances as close as 68 m are well below that required for non-auditory perception (feeling of vibration in parts of the body, pressure in the chest, etc.).
b) If infrasound couples into structures, then people inside the structure could feel avibration. Such structural vibrations have been shown in other applications to lead to feelings of uneasiness and general annoyance. The measurements have shown no evidence of such coupling from modern upwind turbines.
c) Seismic (ground-carried) measurements recorded near wind turbines and wind turbine farms are unlikely to couple into structures.
http://www.mass.gov/eea/docs/dep/energy/wind/turbine-impact-study.pdf

South Australia Environment Protection Authority"Infrasound levels near windfarms and in other environments" January 2013.

"This study concludes that the level of infrasound at houses near the wind turbines assessed is no greater than that experienced in other urban and rural environments, and that the contribution of wind turbines to the measured infrasound levels is insignificant in comparison with the background level of infrasound in the environment."
http://www.slideshare.net/renewableukcymru/infrasound-levels-near-windfarms


Acoustics Australia Vol. 40, No. 1, April 2012 "Measurement and Level of Infrasound from Wind Farms and Other Sources"

"The measured level of infrasound within the wind farms is well below the audibility threshold and is similar to that of urban and coastal environments and near other engineered noise sources."
http://www.acoustics.asn.au/journal/2012/2012_40_1_Turnbull.pdf

Journal of the Acoustical Society of America "Low frequency sound and infrasound from wind turbines – A status update" 2010

"This paper presents the results of the detailed study and concludes that there should be no adverse effects from infrasound or low frequency noise at distances greater than 305 meters from wind farms with the wind turbine types measured. "
J. Acoust. Soc. Am. 127, 1778 (2010);
http://scitation.aip.org/content/asa/journal/jasa/127/3/10.1121/1.3383901

Ontario Ministry of the Environment "Low Frequency Noise and Infrasound Associated with Wind Turbine Generator Systems A Literature Review" December 2010

"In the infrasonic range, at frequencies less than about 20 Hz, there is strong evidence that the sound pressure levels produced by modern upwind turbines will be well below (on the order of 20 dB below) the average threshold of human hearing, at the setback distances typical in Ontario. "
"This study, conducted by noise, vibration and acoustics experts Howe Gastmeier Chapnik Limited (HGC Engineering) concludes that there is no direct health risk from wind turbine sound at Ontario's regulated setback distance."
http://www.ontario.ca/document/low-frequency-noise-and-infrasound-associ...

Legal testimony of Dr. Geoff Leventhall on behalf of Wisconsin Electric Power Company, October 2009

Leventhall's credentials include former President of the UK Institute of Acoustics, a "Distinguished International Member" of the US Institute of Noise Control Engineering, founding editor of the Journal of Low Frequency Noise and Vibration.

"Based on my experience of infrasound and low frequency noise, it is my belief that the infrasound from wind turbines is of no consequence. Attempts to claim that illnesses result from inaudible wind turbine noise do not stand up to simple analyses of the very low forces and pressures produced by the sound from wind turbines."
http://www.primationdesign.com/everpower/Allegany%20DEIS/3%20Appendices/...

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