- Published: April 12, 2017
In the present study, the brain’s response towards near- and supra-threshold infrasound (IS) stimulation (sound frequency < 20 Hz) was investigated under resting-state fMRI conditions. The study involved two consecutive sessions. In the first session, 14 healthy participants underwent a hearing threshold—as well as a categorical loudness scaling measurement in which the individual loudness perception for IS was assessed across different sound pressure levels (SPL). In the second session, these participants underwent three resting-state acquisitions, one without auditory stimulation (no-tone), one with a monaurally presented 12-Hz IS tone (near-threshold) and one with a similar tone above the individual hearing threshold corresponding to a ‘medium loud’ hearing sensation (supra-threshold). Data analysis mainly focused on local connectivity measures by means of regional homogeneity (ReHo), but also involved independent component analysis (ICA) to investigate inter-regional connectivity. ReHo analysis revealed significantly higher local connectivity in right superior temporal gyrus (STG) adjacent to primary auditory cortex, in anterior cingulate cortex (ACC) and, when allowing smaller cluster sizes, also in the right amygdala (rAmyg) during the near-threshold, compared to both the supra-threshold and the no-tone condition. Additional independent component analysis (ICA) revealed large-scale changes of functional connectivity, reflected in a stronger activation of the right amygdala (rAmyg) in the opposite contrast (no-tone > near-threshold) as well as the right superior frontal gyrus (rSFG) during the near-threshold condition. In summary, this study is the first to demonstrate that infrasound near the hearing threshold may induce changes of neural activity across several brain regions, some of which are known to be involved in auditory processing, while others are regarded as keyplayers in emotional and autonomic control. These findings thus allow us to speculate on how continuous exposure to (sub-)liminal IS could exert a pathogenic influence on the organism, yet further (especially longitudinal) studies are required in order to substantialize these findings.
“…neither the environment nor the economy is served by aggressive environmental policies that prove to be economically unsustainable. The energy transition requires good planning and sustained momentum.
But the province has yet to revise its policies to reflect this lesson. For instance, it has not repealed the Green Energy Act which set overly expensive rates and led to overly generous long-term electricity contracts. It has suspended, but not cancelled, the second round of its Large Renewable Energy Procurement (LRP II) process, despite forecasts showing that this additional electricity supply will not be needed.”
To build a cost-effective, low carbon, reliable and resilient electricity system, Ontario must learn from its mistakes and face its challenges and risks.
Written By: John Haffner, Mark Cameron, Jim Burpee
April 20, 2017
“Can you imagine what our environmental groups could achieve, given the number of people with a good focused knowledge of environmental compliance, and not necessarily a lawyer or somebody with deep enough pockets to be able to afford a lawyer? We could really put the brakes on unsuitable development and the rape of our countryside.”
Source: So you say you wanna Revolution?
Ontario has had years to respond to the knowledge that industrial wind turbines are exceeding noise limits. Regulations that the wind industry lobbied for.
In Huron-Bruce county residents continue to battle government to enforce existing regulations to protect and preserve health from intrusive noise of industrial wind turbines. The document below is just one example of many submitted to Ontario from adversely impacted residents:
The pressure continues to mount on the MOECC (Ministry of Environment and Climate Change). The turbines are emitting noise above regulated limits with tonal qualities. Ontario on their own admission and as on the public record- will use the ‘law’ to enforce protections. Do the right thing.
SHUT DOWN THE TURBINES NOW!
Tests Find Some Huron Bruce Turbines Exceed Noise Regulations
APRIL 12, 2017 4:18PM
The MPP for Huron Bruce has called on the province to shut down all industrial wind turbines that fail to comply with noise regulations.
Lisa Thompson says test results released April 7 indicate that the noise levels of turbines near two Huron Bruce residences exceed Ministry of Environment noise guidelines.
The results also acknowledged the possibility that tonal noises are being produced.
However, instead of agreeing to shut down the turbines, Environment Minister Glen Murray claimed the law is being enforced and complaints are being dealt with quickly.
“It has taken two years get these results. The next round of testing could take at least another year and a half,” says Thompson. “I don’t know what this minister thinks quick means, but suffering for three and a half years before anything gets done doesn’t sound quick to me.”
“The Black and Stachura families as well as other families across Ontario have been suffering for far too long from the impacts of IWTs which were built too close to their homes.” said Thompson. “The Minister needs to acknowledge the test results and once and for all do right by the people of Ontario affected by industrial wind turbines.”
She calls on the Minister to acknowledge the test results, and do the right thing.
The following is a letter to the Standing Committee on the Green Energy and Economy Act in back in April, 2009. It could have been written a month ago. Clearly the “Economy” target of the Liberals Act took precedence over health and safety as billions have been funneled out of the tax coffers to the owners of these projects. Thousands of complaints have been suppressed. Untold number of families have been impacted. Most irreparably.
“The windmills started up at the end of November/early December 2008 and it was only after they started them up full time that we started having problems. They were so loud we could not sleep. It was aggravating and exhausting. The one closest to us is 456 metres behind us to the west and the next is just less than 700 metres to the east. We can hear them equally well and they cause terrible noise…
View original post 2,253 more words
The Schmidts of Kincardine in Ontario left their home in 2009 when debilitating health symptoms occurred after the wind turbines of an Enbridge project became operational. They are currently pressuring the Ministry of the Environment and Climate Change (MOECC) to undertake noise testing in a full sound spectrum including infrasound (inaudible) measurements.
Monday, April 10, 2017
Couple seeks help on wind turbine concerns.
Kincardine | by Craig Power
Kincardine residents want new tests done on Enbridge project.
A Kincardine couple is seeking Council support in their quest to have the Ministry of the Environment and Climate Change to investigate noise emissions from the Enbridge Wind turbines on Concession 6.
Norma and Ron Schmidt have had to move from their home due to health related issues they say are associated with infrasound from the nearby wind turbines.
Rachel Thompson, spokesperson for the Central Bruce-Grey Wind Concerns Group, says the project began in 2009 and they still don’t know if Enbridge is in compliance.
So far the Ministry has only done testing on the ‘audible’ noise emissions but they have not yet tested the ‘inaudible’ or ‘infrasound’ emissions which are known to cause adverse heath effects.
A noise modelling report conducted by Valcoustics Canada Incorporated showed an asterisk beside 6 properties within what they refer to as ‘ground zero’ for noise emissions, with the Schmidt home among them.
Thompson says “the report also stated that we cannot be certain that these 6 homes will not fall within the safe range of audible noise.”
At the April 5th meeting, Kincardine Council voted to support the Schmidt’s letter of request for further investigation by the Ministry of the Environment and Climate Change.
The pressure is being applied to the Owen Sound Office of the MOE with hope that testing will be conducted and answers reached.
(Queen’s Park) April 6, 2017
“That in the opinion of this House, the Government should place a moratorium on the installation of industrial wind turbines in unwilling host communities in the Province of Ontario.”
“This brings us to indefatigable wind warrior Esther Wrightman, an Ontario wind turbine refugee who fled to New Brunswick. Last year she filed a Freedom of Information request (FOI) with the Ontario Ministry of Natural Resources and Forestry in order to obtain the wind industry’s mandatory bird and bat mortality reports. In January she finally received “loads” of them, for a hefty fee. The mortality numbers are disturbing. Esther writes:
As the bird and bat mortality reports are slowly uncovered, the numbers just seem to get worse and worse. I never imagined it could get this low, but then again nobody was releasing this info to the public, so how were we to know?”
Wednesday April 5, 2017
To the editor:
You’ve heard that wind turbines are no louder than refrigerators at 40 decibels? That measurement is taken a foot or two away from the bottom of the refrigerator.
If 40 decibels is acceptable to you, then maybe refrigerators should be installed on your night stand next to your bed. Please make sure the refrigerator is set to turn on and off, on and off every two seconds to simulate the wind turbine blade’s movement. Do you really think that two-second intermittent noise all night long will lull you to sleep?
The scientific studies referred to by wind energy companies are often wind energy-funded studies. And when recent studies from many independent researchers are published that comment on audible noise, pulsation/vibration, and shadow flicker affecting nearby residents, the wind faction is quick to dismiss, trivialize, debunk, and simply ignore that information.
Michigan State University has been promoting sample zoning for wind energy systems that was highly permissive toward wind development and darn near hostile to neighbors of wind turbines. The animosity created in communities with unsafe wind development favoring wind developers may take years to disappear.
It’s a brand new ball game because, on March 6, MSU released its new wind energy sample zoning regulations. MSU researchers don’t condone prohibiting turbines. They condone safe setbacks.
The study informs the uninformed about wind development and reasonable land use regulations. These new recommendations are extremely important and confirm all of the things so many people in Michigan have worked so hard for.
Here are some highlights of the MSU recommendations:
Sound Level — On-site use wind energy systems shall not exceed 40 dB(A) at the property line closest to the wind energy system. This sound pressure level may be briefly exceeded during short term events such as utility outages and/or severe wind storms.
One MSU recommendation is a turbine setback of 2,500 feet from the property line of any parcel which is not receiving compensation for the Utility Grid Wind Energy System.
And, to show how wind energy is losing its grip in Michigan, here is a recent straw poll: In Ingersoll Township, Michigan (just south of Midland), board officials took a poll of 88 people at their March 22 board meeting. Results?
• 75 against wind development in township
• 3 for wind development in township
• 10 undecided
The money a community can make and the money a large landholder can make certainly is important. But, it’s the only bullet the pro wind faction has. However, to allow so many large landholders a financial gain is to throw the neighbors of wind turbines under the bus.
New wind energy resource for planning commissions; Michigan State University
Origins and migratory patterns of bats killed by wind turbines in southern Alberta: evidence from stable isotopes
Abstract: Large numbers of migratory bats are killed every autumn at wind energy facilities in North America. While this may be troubling from a population perspective, these fatalities provide an opportunity to learn more about bat migration and the origins and summer distributions of migratory bats by using endogenous markers. Such markers include stable isotope values, which have been used to answer questions about ecological systems, such as trophic levels and food webs, and the origins and migratory routes of animals. To estimate the origins of migratory bats, we determined nitrogen (δ¹⁵N), carbon (δ¹³C), and hydrogen (δ²H) stable isotope values of fur (δ¹⁵Nf, δ¹³Cf, δ²Hf, respectively) from hoary bats (Lasiurus cinereus) and silver-haired bats (Lasionycteris noctivagans) killed at a wind energy facility in southern Alberta, Canada. We determined that mean isotope values varied among species, year, sex, and age class. δ¹³Cf and δ²Hf values indicated that silver-haired bats likely originated in the boreal forest, farther north and/or at higher elevations than the aspen parkland-like habitat suggested by the isotope values of hoary bats. IsoMAP analysis indicated that bat fatalities may have originated from a large catchment area potentially hundreds of kilometers away. Our data provide further evidence for a migration route along the eastern slopes of the Rocky Mountains that is used by bats from across Alberta and beyond, and suggest that fatalities at a single wind energy site have the potential to have far-reaching ecological and population consequences.
E. F. BAERWALD, W. P. PATTERSON, and R. M. R. BARCLAY
Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada; and Saskatchewan Isotope Laboratory, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
Ecosphere 5(9):118. http://dx.doi.org/10.1890/ES13-00380.1
This article is the work of the author(s) indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.
Source: National Wind Watch
PHOTO BELOW: University of Calgary bat researchers Cori Lausen, left, and Erin Baerwald, perform a bat carcass search at a wind energy site in Southern Alberta.