Resource Documents: Noise (491 items)
Documents presented here are not the product of nor are they necessarily endorsed by National Wind Watch. These resource documents are provided to assist anyone wishing to research the issue of industrial wind power and the impacts of its development. The information should be evaluated by each reader to come to their own conclusions about the many areas of debate.
Author: McMurtry, Robert
The first public meeting to describe the proposal for a 75 MW wind energy generating system on Amherst Island, dated December 2011, put forward a single document to address the potential adverse health impacts, a paper by Knopper and Ollson (2011) “Health effects and wind turbines: A review of the literature.” Other references have been added to the company website but no further document has been prepared in advance of the second public meetings to be held on March 5th and 6th, 2013. Drs. Knopper and Ollson have been retained as consultants by Algonquin Power Co.
The purpose of this commentary is to evaluate the Knopper and Ollson (2011) paper on its own merits, including strengths and weaknesses, errors of commission and omission (Part I) as well the existing state of knowledge as of January 2013 18 months after Knopper and Ollson’s (2011) publication (Part B). A considerable amount of new information continues to evolve (Part B and Appendix C) which appears to have been passed over by Algonquin Power Co.
Author: Mass. Department of Environmental Protection
“The monitoring data shows exceedences on March 2, 2014 (Scenario #2) and March 15, 2014 (Scenario #3), both at the 13 Schofield Road monitoring location. The exceedences occurred with winds from the South and Southwest at moderate and high speeds of 8 to 10.3 meters/second at hub height. On March 2, 2014, the data collected indicates that there was a 15 dBA difference between the L90 Background and the LMax sound from the KWI wind turbine. On March 15, 2014, the data collected indicates that there was a 13.7 dBA difference between the L90 background and the LMax sound from the KWI wind turbine.”
Author: McBride, David; Shepherd, Daniel; Welch, David; and Dirks, Kim
Background. Wind turbine noise is known to cause annoyance and sleep disturbance, which are primary health effects. An additional risk factor is the trait of noise sensitivity, which describes individuals who are more likely to pay attention to sound, evaluate sound negatively and have stronger emotional reactions to noise. The result is chronic stress, the effects of which could be monitored through detecting stress related outcomes such as hypertension in exposed individuals. An alternative approach is to monitor health related quality of life (HRQOL). This study examines whether there is a change in this metric over time in a turbine exposed community.
Methods. This is a 2 year follow up of a base-line survey carried out on individuals living within two kilometres of industrial wind turbines compared with a matched control group [“Evaluating the impact of wind turbine noise on health-related quality of life”]. We have repeated the self administered questionnaire survey in which self-reported HRQOL was measured using the abbreviated version of the WHOQOL-BREF.
Results. The base-line survey found that residents living within 2 km of a turbine installation experienced significantly lower overall quality of life, physical quality of life, and environmental quality of life than a control group. The turbine group showed no change in WHOQOL or amenity scores with time, however compared to the 2012 control group, the turbine group had lower physical domain scores, and rated their overall health as being poorer. The results do not therefore support any improvement in this global health metric with time.
Department of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand
Department of Psychology, School of Public Health, Auckland University of Technology, Auckland, New Zealand
Kim N. Dirks
School of Population Health, The University of Auckland, Auckland, New Zealand
Presented at Internoise 2013, Innsbruck, Austria, 15-18 September 2013
Author: van den Berg, Frits
ABSTRACT. For residents near modern wind farms wind turbine noise is more annoying than other important noise sources, when comparing equal sound levels. Acoustically this may be due to the diurnal course of the noise and the rapid fluctuation in level related to the rotation, which are not usual features of most transportation and industrial noise sources. It can also be a result of non-acoustic factors such as visual intrusion and the perceived distribution of benefits and adverse effects. In this paper the pros and cons of these possible causes will be discussed based on measurement results and surveys, and on comparisons to other industrial and transportation noise sources.
APPENDIX: Review of University of Salford Report “Research into Aerodynamic Modulation of Wind Turbine Noise” commissioned by the British Department of Business, Enterprise & Regulatory Reform (now the Department for Business, Innovation and Skills)
Presented at EURONOISE 2009 Edinburgh, Scotland, October 26-28, 2009
Frits van den Berg, Public Health Service Amsterdam, Department of Environmental Health, the Netherlands