98 the Beach
A report from the United Kingdom is shedding new light on low frequency sound dispersion and the overall impact on nearby residents and the environment. Infrasound is lower than 20-Hertz in frequency, the “normal” limit of human hearing. Grey-Bruce Medical Officer of Health, Dr. Hazel Lynn, tells Bayshore Broadcasting News the document suggests Health Canada and similar organizations should consider the effects of infrasound in regards to wind farms.
At 550-metres the sound pressure wave coming off of an industrial wind turbine is reduced to 30-decibels, which is no louder than the noise in your bedroom at night. However, infrasound is dependant on atmospheric conditions such as air pressure, wind direction and cloud cover — and the lower the frequency, the further it travels. According to Dr. Lynn, if you move people two-kilometres from wind turbine developments, the distress level decreases significantly. Read article