![]() ![]() Residents complained of physical and psychological symptoms due to traffic noise (16%) and noise from wind turbines (10% and 7% in 20, respectively). They conducted interviews with residents who lived close to a wind farm and assessed their perception of noise from the wind farm and road traffic at two different points in time, first in 2012 and later in 2014. Pohl, Gabriel, and Hübner carried out a study that combined the methodology of stress psychology with noise measurement. As a matter of fact, the A-weighting filter is not suitable for assessing the effects of low-frequency noise because this filter drastically reduces the low-frequency levels measured. By convention, a frequency A-weighting filter is used in low-frequency noise evaluation. ![]() As a general evaluation of the article, the low-frequency noise from the turbines can cause harmful effects on the health of workers who are very close to the turbine, due to the reception of very intense noise. It was concluded that exposure to noise is significantly correlated with all subsections of general health, except depression. The results show that the effect of exposure to noise of 66 dBA in the social dysfunction section was 2.3 times less than that of 83 dBA noise. This result indicates that the worst health status is due to working conditions and chronic exposure to occupational risk factors, such as noise. The effect of the experiment in the anxiety and insomnia section was 0.2 times greater than that of the 83 dBA noise exposure. The adverse effect of 60 dBA noise exposure in the anxiety and insomnia section was 1.6 times less than that in the 83 dBA exposure group. The negative impact of noise exposure of 60 and 66 dBA on general health was approximately six and four times less than that of 83 dBA, respectively. Based on the results obtained in this study, only the equivalent sound level had a significant effect on the general state of health and in some of its sections. The questionnaire was divided into four sections, including somatic symptoms, anxiety and insomnia, social dysfunction, and depression. Therefore, compared to those on management and safety staff, the harmful health effects of wind turbine noise are stronger on maintenance workers. Maintenance workers were subject to a higher sound level because they are in the vicinity of wind turbines, and higher GHQ (The General Health Questionnaire) scores were also recorded (the health assessment tool for individuals used in the study). The group with the greatest exposure to noise was the maintenance team, who were considered as a reference group. evaluated the effects of noise from wind turbines on the health of employees, divided into three groups (maintenance, safety, and administration). Results and DiscussionĪs for the results, Abbasi et al. The 39 articles evaluated were carried out mostly in Asian and European countries and were based on small samples. Additionally, the 39 articles evaluated used similar techniques (e.g., questionnaires data previously collected in other studies cognitive, physiological, and psychological tests based on medical and auditory equipment noise measurements and audiometric assessments and experimental tests based on noise exposure). ![]() The evaluation carried out focused on the impacts on health, highlighting the incidence of studies aimed at human health and others aimed at carrying out tests on animals that may lead to a future study on humans. A total of 39 articles published between 20 and grouped in the categories “health LFN case studies (small population)”, “health LFN case studies (large population)”, and, finally, “LFN case studies (animals)” were selected for in-depth evaluation. The 142 papers selected for the period from January 2016 to December 2019 were grouped into 9 categories: reviews health effects due to noise and noise pollution low-frequency sound/infrasound health LFN case studies (small population) health LFN case studies (large population) LFN case studies (animals) laboratories studies, simulation studies, and computational case studies and not relevant. ![]()
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