1.5 kilometers Dr. Chris Hanning (UK) - Cape Cod Commission

Key QuotesWind Turbine NoiseWind Farm Noise Guideline, Noise Measurement Services Pty Ltd., March, 2011New Zealand“Wind has audible and sub-audible character. That is, measurement of wind sound willalways present sound levels in the audible, low-frequency and infrasonic frequencies.Adverse health effects are due to extreme psychological stress from environmentalnoise, particularly low frequency noise with symptoms of sleep disturbance, headache,tinnitus, ear pressure, dizziness, vertigo, nausea, visual blurring, tachycardia, irritability,problems with concentration and memory, and panic attack episodes associated withsensations of internal pulsations when awake or asleep. Sound in the low frequenciescan be heard at relatively lower levels of “loudness”. The research documented in thisGuideline indicates “ordinary” wind has a laminar or smooth infrasound and lowfrequencyflow pattern when analyzed over short periods of time. Wind farm activityappears to create a “pulsing” infrasound and low-frequency pattern…The hypothesesderived from professional research reported here is that wind farm noise has anadverse effect on susceptible individuals due to these pressure variations as well asaudible noise due to the wind turbines. These effects may be cumulative.”