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Old 04-05-2019, 03:05 PM  
Busty2
Member since 1999
 
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Join Date: Dec 2007
Location: Off the Amalfi coast
Posts: 7,202
Conclusions
The dominant source of wind turbine low frequency noise, LFN (20–200 Hz), is incoming turbulence interaction with the blade. Infrasound (1–20 Hz) from wind turbines is not audible at close range and even less so at distances where residents are living. There is no evidence that infrasound at these levels contributes to perceived annoyance or other health effects. LFN from modern wind turbines are audible at typical levels in residential settings, but the levels do not exceed levels from other common noise sources, such as road traffic noise. Although new and large wind turbines may generate more LFN than old and small turbines, the expected increase in LFN is small.

Wind turbine noise is associated with residential noise annoyance. It has been found that 10–20% of residents are annoyed, and about 6% are very annoyed by wind turbine noise at levels between 35 and 40 dB (LAeq, at 8 m s − 1 wind speed at 10 m height). The main cause of annoyance seems to be the pulsating swish sound produced when the blades pass through the air. This sound has its main energy in the frequency range of 500–1000 Hz.

Except for noise annoyance, no consistent effects on health due to wind turbine noise have been reported. However, a statistically significant association between wind turbine noise and self-reported sleep disturbance was found in two studies.

It has been argued that infrasound and low frequency noise from wind turbines may cause serious health effects in the form of 'vibroacoustic disease', 'wind turbine syndrome' or harmful infrasound effects on the inner ear. However, empirical supports for these claims are lacking.


https://iopscience.iop.org/article/1...326/6/3/035103


But But But they give you cancer !!!! MORONS
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