Effects of low-frequency noise from wind turbines on heart rate variability in healthy individuals

Chiu, Chong‐Chi; Lung, Shih-Chun Candice; Chen, Nathan; Hwang, Jing-Shiang; Tsou, Ming Chien

doi:10.1038/s41598-021-97107-8

Cited by 15 publications

(12 citation statements)

References 51 publications

(53 reference statements)

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“…The measurement revealed considerable levels of LFN. The average indoor LFN levels at nighttime in four of the seven monitored households were above 30 dB (LAeq) (measured houses were located at distances of 290-330 m from the nearest wind turbine) [71]. The investigation revealed a clear influence on LFN of distance from turbines, building materials used, and types of windows installed and whether they are open or closed [71].…”

Section: Sound Emittance From Wind Turbinesmentioning

confidence: 91%

“…An independent report from Taiwan also contains data on low-frequency noise (LFN) level measurements both in houses and outdoors in the vicinity of wind turbines [71]. The measurement revealed considerable levels of LFN.…”

Section: Sound Emittance From Wind Turbinesmentioning

confidence: 99%

“…In addition to indirect measurements using audio chambers, direct measurements of impact on humans by actual operating wind turbines can be used. In a recently published field investigation from Taiwan, changes in heart rate variations (HRVS) of recruited subjects were measured while taking low-frequency noise (LFN) measurements at the same time at two designated sites with an intervention design [71]. The results revealed a significant association between LFN exposure and changes in HRV, especially in with respect to the SDNN parameter (standard deviation of all normal to normal R-R intervals), indicating potential health impacts of exposure to LFN [71].…”

Section: Experimental Evidence On Potential Physiological and Psychol...mentioning

confidence: 99%

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Side Effects of Wind Energy: Review of Three Topics—Status and Open Questions

Thess

Lengsfeld²

2022

Sustainability

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Wind energy is considered a pillar of the low-carbon energy system of the future. Whereas the side effects and social costs of fossil energy sources (coal, oil and gas), as well as those of nuclear energy, are well-documented and quantified, understanding of the analogous questions with respect to wind energy is far less advanced. However, such understanding is crucial in order to minimize the influence of wind energy on the environment and to compare its social costs with those of conventional energy sources. Here, we summarize the state of knowledge of three side effects of wind energy that have not been convincingly evaluated to date. We focus our analysis on three topics, namely (1) the impact of wind energy on insects; (2) the impact of wind energy on the spatiotemporal distribution of air velocity, temperature, moisture and precipitation in the vicinity of wind parks; and (3) the impact of wind energy on humans through noise emission. For each topic, we formulate open research questions that should be addressed by responsible policy incentives in order to comprehensively assess the social costs of wind energy and to develop wind farms with minimal impact on their environment.

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Section: Sound Emittance From Wind Turbinesmentioning

confidence: 91%

Section: Sound Emittance From Wind Turbinesmentioning

confidence: 99%

Section: Experimental Evidence On Potential Physiological and Psychol...mentioning

confidence: 99%

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Side Effects of Wind Energy: Review of Three Topics—Status and Open Questions

Thess

Lengsfeld²

2022

Sustainability

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“…Myocardial infarction (MI) is a multifactorial disease with high mortality and morbidity worldwide. Noise pollution, with accelerating urbanization and mechanization, has been reported by the World Health Organization to be the environmental factor with the second most significant environmental risk factor for human health just following air pollution [ 1 , 2 ]. Currently, the guidelines of the ESC and AHA/ASC do not sufficiently address the role of noise as a risk factor for cardiovascular disease, and research on the mechanisms by which noise exposure can lead to cardiovascular disorders is lacking.…”

Section: Introductionmentioning

confidence: 99%

Noise exposure and its relationship with postinfarction cardiac remodeling: implications for NLRP3 inflammasome activation

Wei

Yang

et al. 2022

Bioengineered

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In recent years, high-decibel noise has emerged as a causative risk factor for ischemic heart disease. Massive noise overdose is associated with increased endocrine, neural, and immune stress responses. The NLRP3 (nucleotide-binding oligomerization domain, leucine-rich repeat, and pyrin domain containing 3) inflammasome, the most characterized supramolecular complex and a potent mediator of inflammatory signaling, has been reported to be a marker of increased ischemic heart disease vulnerability. Our study evaluated the association of noise exposure with postinfarction cardiac remodeling and its effect on NLRP3 inflammasome activation. Rats were exposed to a noisy environment (14 days, 24 h/per day, 70 ± 5 dB), and speck formation by the NLRP3 inflammasome scaffold protein ASC (apoptosis-associated speck-like protein) was assessed by confocal immunofluorescence. Echocardiography, pathological analysis, and in vivo electrophysiology were performed. Our results revealed the improved postinfarction cardiac function, mitigated fibrosis, and decreased arrhythmia vulnerability and sympathetic sprouting in low-environment noise groups. Moreover, western blotting of NLRP3, caspase-1, ASC, IL-1β, and IL-18 and confocal microscopy of ASC speck showed that the priming and activation of NLRP3 inflammasome were higher in the NE group than in the NI group. In conclusion, our findings reveal a previously unidentified association between NLRP3 inflammasome activation and noise exposure, underscoring the significance of effective noise prevention in improving postinfarction prognosis.

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“…Small wind turbines are known to generate low-frequency noise in the range of 20 Hz -200 Hz [66]. A major source of low-frequency noise is the interaction between airflow and wind turbine blades [67].…”

Section: Resultsmentioning

confidence: 99%

Wind Tunnel Testing to Evaluate Noise Emissions from a Small Wind Turbine

Asi¹

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The wind power industry has experienced fast and tremendous growth, globally, in recent years. Consequently, there is a growing interest in investigating aerodynamics and aeroacoustics characteristics of wind turbines and developing environmental standards aimed at decreasing noise levels in the design and manufacture of these machines.This study was carried out in the Carleton University Wind Induced Dynamic Laboratory (WInDLab) that was designed to evaluate and quantify noise levels emitted by a small horizontal axis wind turbine. This investigation provided the firstever set of measurements carried out in the WInDLab following the successful installation of the wind turbine.To achieve the objective of this project, first, the characterization of the wind tunnel had to be carried out. The wind velocity profile of the wind tunnel was characterized and results indicated that its profile is not perfectly symmetrical with respect to the tunnel centreline.The background noise levels of the WInDLab wind tunnel for different fan RPMs were recorded with a Brüel & Kjaer (B&K) Prepolarized Free-field Type 4189, ½"(1.27 cm) microphone, which was located at six positions in line with IEC61400-11 regulations. The noise measurements obtained were post-processed using the MATLAB software application. Plots for the sound pressure level (SPL) vs frequency of the wind turbine noise spectra, as well as the background noise level at 500 RPM, 575 RPM and 650 RPM of the wind tunnel fans were derived. I would like to express my sincere gratitude to my supervisors, Prof. Fred Afagh, Prof. Robert Langlois, and Prof. Joana Rocha for their advice, guidance, and financial support, in the course the project. A major part of my project work was the characterization of the wind tunnel and the acoustic noise measurements. I thank Mr. James Cann, Mr. Chris Bassindale, and Mr. David Raude, expert technologists in Carleton University's Mechanical and Aerospace Engineering Department who provided the support and guidance in the installation of the wind turbine, characterization of the wind tunnel, and the acoustic noise measurements of the wind tunnel. I thank Mr. Alex Proctor who assisted with the machining and assembling of the wind turbine tower. I am deeply grateful to my family for their unwavering support throughout the duration of this project. I thank my dad, my mom, my sisters and my brother for their prayers, encouragement, emotional support, financial support, and advice during my Master's degree program. I cannot forget Saeid Naeini for his help and ideas during the project. Lastly, I would like to thank all my friends who have supported me in one way or the other through the course of my project. v

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Effects of low-frequency noise from wind turbines on heart rate variability in healthy individuals

Cited by 15 publications

References 51 publications

Side Effects of Wind Energy: Review of Three Topics—Status and Open Questions

Side Effects of Wind Energy: Review of Three Topics—Status and Open Questions

Noise exposure and its relationship with postinfarction cardiac remodeling: implications for NLRP3 inflammasome activation

Wind Tunnel Testing to Evaluate Noise Emissions from a Small Wind Turbine

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