Resource Documents: Denmark (50 items)
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Denmark, Europe, Germany, Italy, Netherlands, Noise, Regulations, Technology •
Implementation of the issue of noise from wind turbines at low frequencies
Author: Marini, Martino; et al.
ABSTRACT—
The enduring energy scenario leads to further promote the development of the exploitation of renewable energy sources. Recent European standards have been defining a path to reach in 2050 a level of decarbonization lower of 80% compared to 1990. Wind farms have been growing quickly for [the] last decade with individual wind turbines getting larger and larger. In addition to the benefits of containing greenhouse gas emissions and restraining the use of depletable resources, drawbacks have also appeared due to noise generation from wind turbines and adverse reaction of some nearby residents. The noise generated by wind turbines has a broad spectrum character but the low frequency noise causes special problems. It is a fact that in different European countries special laws have been adopted to impose noise limits and evaluation methods for the assessment of environmental low frequency noise from this kind of sound source. Other countries are still lacking specific rules but in the authorization procedure such analysis is required by environmental control agencies. The purpose of this study consists of comparing the assessment procedures currently used in different European countries for the prediction of low frequency noise from wind turbines and its propagation. The comparison of procedures gives a chance to put forward progressions in low frequency noise emission and reception.
Martino MARINI, DADU University of Sassari, Italy
Costantino Carlo MASTINO, Roberto BACCOLI, Andrea FRATTOLILLO, DICAAR University of Cagliari, Italy
Antonino DI BELLA5, DII University of Padova, Italy
Proceedings of the 23rd International Congress on Acoustics, 9–13 September 2019, Aachen, Germany: pages 1441–1446
Download original document: “Implementation of the issue of noise from wind turbines at low frequencies”
Long-term wind turbine noise exposure and the risk of incident atrial fibrillation in the Danish Nurse cohort
Author: Bräuner, Elvira; et al.
Highlights
- Long-term exposure to wind turbine noise was linked to incidence of atrial fibrillation in the Danish Nurse Cohort of 28,731 nurses.
- Nurses exposed to wind turbine noise levels ≥20 dB, compared to <20 dB at night had a 30% higher risk of AF.
- Relatively few nurses were exposed to wind turbine noise: 13% lived within a 6,000 m radius of a wind turbine and 5% of all nurses were exposed to levels >25 dB.
Abstract
BACKGROUND: The potential health effects related to wind turbine noise (WTN) have received increased focus during the past decades, but evidence is sparse. We examined the association between long-term exposure to wind turbine noise and incidence of atrial fibrillation (AF).
METHODS: First ever hospital admission of AF amongst 28,731 female nurses in the Danish Nurse Cohort were identified in the Danish National Patient register until ultimo 2013. WTN levels at residential addresses between 1982 and 2013 were estimated using the Nord2000 noise propagation model, as the annual means of Lden, Lday, Levening and Lnight at the most exposed façade. Time-varying Cox proportional hazard regression models were used to examine the association between the 11-, 5- and 1-year rolling means of WTN levels and AF incidence.
RESULTS: 1430 nurses developed AF by end of follow-up in 2013. Mean (standard deviation) baseline residential noise levels amongst exposed nurses were 26.3 (6.7) dB and slightly higher in those who developed AF (27.3 (7.31) dB), than those who didn’t (26.2 (6.6)). We observed a 30% statistically significant increased risk (95% CI: 1.05-1.61) of AF amongst nurses exposed to long-term (11-year running mean) WTN levels ≥20 dB(A) at night compared to nurses exposed to levels <20 dB(A). Similar effects were observed with day (HR 1.25; 95% CI: 1.01-1.54), and evening (HR 1.25; 95% CI: 1.01-1.54) noise levels. CONCLUSIONS: We found suggestive evidence of an association between long-term exposure to WTN and AF amongst female nurses. However, interpretation should be cautious as exposure levels were low.
Elvira V. Bräuner, Jeanette T. Jørgensen, Anne Katrine Duun-Henriksen, Zorana J. Andersen
Section of Environmental Health, Department of Public Health, University of Copenhagen, Denmark
Claus Backalarz, Jens E. Laursen, Torben H. Pedersen
DELTA Acoustics, Hørsholm, Denmark
Mette K. Simonsen
Diakonissestiftelsen; and The Parker Institute, Copenhagen University Hospital, Bispebjerg, Frederiksberg, Denmark
Environ Int. 2019 Sep;130:104915. doi: 10.1016/j.envint.2019.104915. Epub 2019 Jul 22.
Download original document: “Long-term wind turbine noise exposure and the risk of incident atrial fibrillation in the Danish Nurse cohort”
Impact of Long-Term Exposure to Wind Turbine Noise on Redemption of Sleep Medication and Antidepressants: A Nationwide Cohort Study
Author: Poulsen, Aslak Harbo; et al.
BACKGROUND: Noise from wind turbines (WTs) is associated with annoyance and, potentially, sleep disturbances.
OBJECTIVES: Our objective was to investigate whether long-term WT noise (WTN) exposure is associated with the redemption of prescriptions for sleep medication and antidepressants.
METHODS: For all Danish dwellings within a radius of 20-WT heights and for 25% of randomly selected dwellings within a radius of 20-to 40-WT heights, we estimated nighttime outdoor and low-frequency (LF) indoor WTN, using information on WT type and simulated hourly wind. During follow-up from 1996 to 2013, 68,696 adults redeemed sleep medication and 82,373 redeemed antidepressants, from eligible populations of 583,968 and 584,891, respectively. We used Poisson regression with adjustment for individual and area-level covariates.
RESULTS: Five-year mean outdoor nighttime WTN of ≥42 dB was associated with a hazard ratio (HR) = 1.14 [95% confidence interval (CI]: 0.98, 1.33) for sleep medication and HR = 1.17 (95% CI: 1.01, 1.35) for antidepressants (compared with exposure to WTN of <24 dB). We found no overall association with indoor nighttime LF WTN. In age-stratified analyses, the association with outdoor nighttime WTN was strongest among persons ≥65 y of age, with HRs (95% CIs) for the highest exposure group (≥42 dB) of 1.68 (1.27, 2.21) for sleep medication and 1.23 (0.90, 1.69) for antidepressants. For indoor nighttime LF WTN, the HRs (95% CIs) among persons ≥65 y of age exposed to≥15 dB were 1.37 (0.81, 2.31) for sleep medication and 1.34 (0.80, 2.22) for antidepressants.
CONCLUSIONS: We observed high levels of outdoor WTN to be associated with redemption of sleep medication and antidepressants among the elderly, suggesting that WTN may potentially be associated with sleep and mental health.
Aslak Harbo Poulsen, Ole Raaschou-Nielsen, Alfredo Peña, Andrea N. Hahmann, Rikke Baastrup Nordsborg, Matthias Ketzel, Jørgen Brandt, and Mette Sørensen
Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen
Department of Environmental Science, Aarhus University, Roskilde, Denmark
3DTU Wind Energy, Department of Wind Energy, Technical University of Denmark, Roskilde
Department of Natural Science and Environment, Roskilde University, Denmark
Global Center for Clean Air Research (GCARE), University of Surrey, United Kingdom
Environmental Health Perspectives, March 2019
https://doi.org/10.1289/EHP3909
Download original document: “Impact of Long-Term Exposure to Wind Turbine Noise on Redemption of Sleep Medication and Antidepressants: A Nationwide Cohort Study”
Long-Term Exposure to Wind Turbine Noise and Risk for Myocardial Infarction and Stroke: A Nationwide Cohort Study
Author: Poulsen, Aslak Harbo; et al.
BACKGROUND: Noise from wind turbines (WTs) is reported as more annoying than traffic noise at similar levels, raising concerns as to whether WT noise (WTN) increases risk for cardiovascular disease, as observed for traffic noise.
OBJECTIVES: We aimed to investigate whether long-term exposure to WTN increases risk of myocardial infarction (MI) and stroke.
METHODS: We identified all Danish dwellings within a radius 20 times the height of the closest WT and 25% of the dwellings within 20–40 times the height of the closest WT. Using data on WT type and simulated hourly wind at each WT, we estimated hourly outdoor and low frequency (LF) indoor WTN for each dwelling and derived 1-y and 5-y running nighttime averages. We used hospital and mortality registries to identify all incident cases of MI (n= 19,145) and stroke (n= 18,064) among all adults age 25–85 y (n= 717,453), who lived in one of these dwellings for≥one year over the period 1982–2013. We used Poisson regression to estimate incidence rate ratios (IRRs) adjusted for individual- and area-level covariates.
RESULTS: IRRs for MI in association with 5-y nighttime outdoor WTN >42 (vs. <24) dB(A) and indoor LF WTN >15 (vs. <5) dB(A) were 1.21 [95% confidence interval (CI): 0.91, 1.62; 47 exposed cases] and 1.29 (95% CI: 0.73, 2.28; 12 exposed cases), respectively. IRRs for intermediate categories of outdoor WTN [24–30, 30–36, and 36–42 dB(A) vs. <24 dB(A)] were slightly above the null and of similar size: 1.08 (95% CI: 1.04, 1.12), 1.07 (95% CI: 1.00, 1.12), and 1.06 (95% CI: 0.93, 1.22), respectively. For stroke, IRRs for the second and third outdoor exposure groups were similar to those for MI, but near or below the null for higher exposures.
CONCLUSIONS: We did not find convincing evidence of associations between WTN and MI or stroke.
From the Discussion: ‘[A]lthough we found the highest levels of WTN to be associated with the highest relative risk for incident MI, numbers of highly exposed cases were small, and the associations were nonsignificant. Inverse or null associations between high exposures and stroke were also based on a small number of cases. Therefore, it is not possible to draw firm conclusions from our finding.’
Aslak Harbo Poulsen, Ole Raaschou-Nielsen, Alfredo Peña, Andrea N. Hahmann, Rikke Baastrup Nordsborg, Matthias Ketzel, Jørgen Brandt, and Mette Sørensen
Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen
DTU Wind Energy, Technical University of Denmark, Roskilde
Department of Environmental Science, Aarhus University, Roskilde, Denmark
Department of Natural Science and Environment, Roskilde University, Denmark
Global Center for Clean Air Research (GCARE), University of Surrey, United Kingdom
Environmental Health Perspectives, March 2019
https://doi.org/10.1289/EHP3340
Download original document: “Long-Term Exposure to Wind Turbine Noise and Risk for Myocardial Infarction and Stroke: A Nationwide Cohort Study”
