February 6, 2006

Wind turbine noise -- a primer

A good overview of the wind turbine noise issue, written by physician Nina Pierpont, is available at www.aweo.org/Pierpont-noise-060204.pdf (40 KB). She explains the difference between A-weighted and C-weighted sound measurements and presents evidence that the C-weighted sound level from industrial wind turbines is much greater than the usually cited A-weighted level. The C-weighting includes more low-frequency sound, which can have a serious impact on quality of life and even health.

Pierpont also puts the sound levels of wind turbines and their impact into the context of current environmental and health guidelines.

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