TUESDAY 05 FEBRUARY, 2013 |
Wind Farm Infrasound Myth Debunked
South Australia's Environment Protection Authority has released a report showing
infrasound levels at homes near wind turbines is no greater than what is
Infrasound is sound that is lower in frequency than 20 Hz (Hertz), which is
lower than the "normal" limit of human hearing.
Infrasound is a point seized upon by some anti-wind farm campaigners as a
contributor to "Wind-Turbine
", a mysterious affliction said to cause psychological issues
and physiological problems such as insomnia, headaches, tinnitus, vertigo and nausea.
In the EPA study, undertaken in conjunction with Resonate Acoustics, infrasound
levels were recorded at seven locations in urban areas and four locations in rural areas; including two residences approximately 1.5 kilometres away from
wind turbines at Bluff Wind Farm and Clements Gap Wind Farm
The EPA says infrasound levels measured at the two residential locations near wind farms
were "within the range of infrasound levels measured at comparable locations away from wind
farms". The report notes the results at one of the houses near a wind farm
were the lowest infrasound levels measured at any of the 11 locations included in
"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."
Commenting on the report, Clean Energy Council Policy Director Russell Marsh said,
"The results of the EPA’s report show that the real contributors to infrasound are things like air-conditioners, traffic and urban office environments
- not wind farms. This is great news for clean and safe renewable wind energy and further reassurance for communities near wind farms."
In January last year, Australia's Climate And Health Alliance (CAHA) stated
"There is no credible peer reviewed scientific evidence that demonstrates a link between wind turbines and direct adverse health impacts in people living in proximity to
The report on infrasound levels near wind farms and in other environments can be
in full here
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