Please use this link from Knight Lab Canada to follow the 30 year time line for damaging health effects of industrial wind turbines. With full documentation from NASA, Cornell University, MIT and many others.

January 1, 1981
Wind turbine operation creates enormous sound pressure waves
Many calloborators, including NASA and SERI fully investigated acoustic, seismic and atmospheric aspects using turbine operational information and data recordings in a series of field experiments (the NASA research). This image from the field studies shows the sound pressure caused by rotating blades passing the tower.

March 1, 1982
Householders are exposed to Low Frequency Noise (LFN) from wind turbines while indoors
NASA's Guide to the evaluation of human exposure to noise from large turbines - 'Receiver exposure' includes noise evaluation inside homes.


March 2, 1982
Closed windows and doors do not protect occupants from LFN
Further NASA research showed that even with windows shut, houses do not stop LFN sound energy. Measured levels inside the home are significantly higher than predicted within the LFN range. The house acts like a drum for LFN.


November 1, 1984
Noise inside homes worse than outside
More NASA research shows that house structure excitation from wind turbine operation is similar to the sonic boom created by jet aircraft pssing overhead. Interior noise can be greater than outside noise. Many people complain that wind turbines sound like a jet that never lands - this is why. There is an overlap between the peak acceleration level (vibration measure) and peak sound pressure levels within two structures that had been excited by commercial jets, helicopters and wind turbines.


November 4, 1987
Wind industry told that dB(A) unsuitable to measure LFN emissions from wind turbines
Wind industry informed of how to predict annoyance from LFN emissions from wind turbines at Windpower '87 Conference. Kelley explains how to measure LFN emissions that annoy neighbours of wind farms. LFN can be intensified inside homes. The dB(A) filter cuts out all the LFN and is therfore unsuitable. G-weighted scales were better correlated with noise, annoyance, vibration and pulsations.

September 2, 1996
ETSU  (Energy Technology Support Unit) deliberately excludes testing inside homes
Without any supportive evidence, a 10 dB(A) buffer is assumed to occur inside homes compared to outside. No need to take measurements inside just deduct this 10 dB(A) from outside noise level readings and say that this is equivalent to the inside noise level.

September 2, 1996
ETSU deliberately excludes testing inside homes
Without any supportive evidence, a 10 dB(A) buffer is assumed to occur inside homes compared to outside. No need to take measurements inside just deduct this 10 dB(A) from outside noise level readings and say that this is equivalent to the inside noise level.


September 6, 1996
ETSU avoids measuring LFN from wind turbines
The sampling and filtering protocols in ETSU remove the dominant LFN component of the noise emissions from wind turbines

October 1, 1996
ETSU falsely elevates background noise readings to hide noise produced by wind turbines
Under ETSU, background noise levels set the benchmark for turbine noise criteria. ETSU artificially elevated background levels by using techniques such as poor microphone shielding, limiting monitoring locations, sample size, sample time of day, sample duration, survey period, sample processing.

July 28, 2004
Wind industry knows noise models inadequate
At a Australian Wind industry conference, AUSWEA, Eric Sloth from Vestas presented collaborative research findings (Vestas, Bonus, Delta - later named as Siemens) that confessed that their noise prediction models were inadequate and further research was required.

July 1, 2009
Sixty years of WHO research shows sleep deprivation, caused by noise, is a serious adverse health effect
The WHO reviews the available evidence and concludes sleep deprivation can lead to consquences for health and well-being. They write: "Sleep is a biological necessity and disturbed sleep is associated with a number of adverse impacts on health.... (and) is viewed as a health problem in itself (environmental insomnia), (as) it also leads to further consequences for health and well-being"

June 29, 2011
Vestas knew that low frequency noise from larger turbines needed greater setbacks
This is a letter from the CEO of Vestas, lobbying the Danish government not to bring in significant noise regulations, admitting that low frequency noise from larger turbines will increase setback distances needed for neighbours.

August 1, 2013
Wind developers refuse to cooperate with noise impact studies
Paul Schomer, George Hessler and Rob Rand investigates the Shirley Wisconsin wind farm acoustic annoyance and concludes "Most residents do not hear the wind-turbine sound; noise annoyance is not an issue. The issue is physiological responses that result from the very low-frequency infrasound and which appears to be triggering motion sickness in those who are susceptible to it." Schomer laments the difficulty of studying wind turbine annoyance when devlopers refuse to cooperate by allowing on-off testing.


 


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