摘要:Wind turbines emit low frequency noise (LFN) and large turbines generally generate
more LFN than small turbines. The dominant source of LFN is the interaction
between incoming turbulence and the blades. Measurements suggest that indoor
levels of LFN in dwellings typically are within recommended guideline values,
provided that the outdoor level does not exceed corresponding guidelines for facade
exposure. Three cross-sectional questionnaire studies show that annoyance from wind
turbine noise is related to the immission level, but several explanations other than
low frequency noise are probable. A statistically significant association between
noise levels and self-reported sleep disturbance was found in two of the three
studies. It has been suggested that LFN from wind turbines causes other, and
more serious, health problems, but empirical support for these claims is lacking.