Science Illustrated

Is it really true that ... ... wind turbines make me sick?

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When a 60-m-tall wind turbinespi­ns at 150 km/h, it produces noise. Some neighbours claim this noise affects their health. Wind turbines emit low-frequency noise (10-160 Hz) and infrasound (4-20 Hz). The sounds that people can hear are normally 50-12,500 Hz.

Several studies have shown that both the infrasound and low-frequency noise made by wind turbines are much lower than the limit values set by countries including Australia. In 2014, scientists from MIT in the US published a comprehens­ive study of wind turbines’ effect on our health. The scientists concluded that the noise does not affect our health directly. And turbines are usually quieter than trucks passing on nearby roads.

Perhaps the most compelling evidence that turbines are innocent? People claiming ill effects often still experience them... even when the turbines are switched off.

 ??  ?? Wind turbine wings produce noise when they rotate.
Wind turbine wings produce noise when they rotate.
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