Author: | Noise
Windfarms consist of clusters of wind turbines, which, when placed in populated areas, are associated with intrusive and unwanted sound. A relatively new noise source, wind turbine noise has characteristics sufficiently different from other, more extensively studied, noise sources to suggest that preexisting noise standards are not appropriate. Though research into the human impacts of wind turbine noise has appeared only in the last decade and in small quantity, the data suggest that, for equivalent exposures, wind turbine noise is more annoying than road or aviation noise. Furthermore, the particular characteristics of wind turbine noise may be likely to cause sleep disruption. As with other impulsive noise sources, time-aggregated noise metrics have limited utility in protecting public health, and a cluster of metrics should be used in order to estimate potential threat. At this time, however, the quantity and quality of research are insufficient to effectively describe the relationship between wind turbine noise and health, and so legislation should apply the precautionary principle or conservative criteria when assessing proposed windfarm developments.
Auckland University of Technology, New Zealand
Department of Sleep Medicine, University Hospital of Leicester, United Kingdom
Massey University, Palmerston North, New Zealand
Encyclopedia of Environmental Management, Edited by Sven Erik Jorgensen, Copenhagen University, Denmark; CRC Press, 2012
This article is the work of the author(s) indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.