Tag Archives: Health Canada wind turbine noise and health study

Wind farm noise makes people sick say Irish doctors: change noise regulations

17 Tuesday Mar 2015

Posted by in Health, Renewable energy, Wind power

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Here is a story from the Irish Examiner, fitting on St Patrick’s Day.

By Conall Ó Fátharta
Irish Examiner Reporter

Leading doctors have called on the Government to reduce the noise levels of wind turbines — which they claim are four times that recommended by World Health Organisation (WHO) guidelines.

The Irish Doctors’ Environmental Association also said the set-back distance of 500m is not enough, that it should be increased to at least 1,500m.

Visiting Research Professor at Queen’s University, Alun Evans and lead clinical consultant at Waterford Regional Hospital Prof Graham Roberts have both expressed concerns over the current noise levels and distance of turbines from homes.

Environment Minister Alan Kelly is currently reviewing the wind energy planning guidelines and the group is calling for both issues to be examined closely in the interest of public health.

The association has called for the introduction of a maximum noise level of 30 decibels as recommended by the WHO and for the set-back distance from inhabited houses to at least 1,500m from the current 500m.

Prof Evans said the construction of wind turbines in Ireland “is being sanctioned too close to human habitation”.

“Because of its impulsive, intrusive, and sometimes incessant nature, the noise generated by wind turbines is particularly likely to disturb sleep,” he said.

“The young and the elderly are particularly at risk. Children who are sleep-deprived are more likely to become obese, predisposing them to diabetes and heart disease in adulthood. As memory is reinforced during sleep, they also exhibit impaired learning.”

Prof Evans said adults who are sleep-deprived are at risk of a ranges of diseases, particularly “heart attacks, heart failure, and stroke, and to cognitive dysfunction and mental problems”.

Prof Evans, attached to the Centre for Public Health at Queen’s, said the Government should exercise a duty of care towards its citizens and exercise the ‘precautionary principle’ which is enshrined in the Lisbon Treaty.

“It can achieve this by raising turbine set-back to at least 1500m, in accordance with a growing international consensus,” said Prof Evans.

In a statement, the Department of the Environment said that in December 2013 it published draft revisions to the noise, set-back distance, and shadow-flicker aspects of the 2006 Wind Energy Development Guidelines.

These draft revisions proposed: 1. The setting of a more stringent day and night noise limit of 40 decibels for future wind energy developments; 2. A mandatory minimum setback of 500m* between a wind turbine and the nearest dwelling for amenity considerations; 3. The complete elimination of shadow flicker between wind turbines and neighbouring dwellings.

A public consultation process was initiated on these proposed revisions to the guidelines, which ran until February 21, 2014.

“The department received submissions from 7,500 organisations and members of the public during this period. In this regard, account has to be taken of the extensive response to the public consultation in framing the final guidelines,” the department said in the statement.

“However, it is the department’s intention that the revisions to the 2006 Wind Energy Development Guidelines will be finalised in the near future and will address many of the issues raised in that bill.”

*Editor’s note: Ontario’s wind turbine noise regulations, which are based on geography and wind power lobby group instruction, not science, work out to 550 meter setbacks. Health Canada’s Wind Turbine Noise and Health study revealed that problems exist at 55 meters, with 25% of people exposed to the turbine noise and low frequency noise being distressed; 16.5% were distressed at 1 km. The Health Canada research results suggest that a setback should be a minimum of 1300 meters, which means Ontario’s existing noise regulations are completely inadequate to protect health.

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What the Health Canada noise study means for North Gower

29 Saturday Nov 2014

Posted by in Health, Ottawa, Wind power

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Health Canada study results show North Gower wind farm would have made more than 100 people sick

Many people were disappointed in the results contained in the summary of the Health Canada Wind Turbine Noise and Health study, which was released in a hurry on November 6th.

While the mainstream media picked up on the message as being “there is no association between wind turbine noise and health effects” what Health Canada actually said in its news release was this:

No evidence was found to support a link between exposure to wind turbine noise and any of the self-reported or measured health endpoints examined. However, the study did demonstrate a relationship between increasing levels of wind turbine noise and annoyance towards several features (including noise, vibration, shadow flicker, and the aircraft warning lights on top of the turbines) associated with wind turbines.

In fact, the study found that an average of 16.5% of people within 2 km of wind turbines, or a wind turbine (whether multiples were considered is not clear), had severe distress or “annoyance”. The closer people lived, the worse that result was: 25% of people at 550 meters or less (some people waived the setback as part of their contract with the wind power developers) had adverse health effects related to the distress or annoyance, annoyance being a medical term.

The adverse health effects from the annoyance listed by Health Canada were:migraine, tinnitus (chronic ringing in the ears), dizziness, sleep disturbance or disorder, and cardiovascular effects such as elevated blood pressure.

So, what would that mean for North Gower, if the wind power generation project proposed by Prowind in 2008 gone ahead (remember, it got as close as one could to a Feed In Tariff contract, before the government paused the subsidy program in the spring of 2013–it is NOT true that it would never have been approved, it was virtually there).

Thanks to volunteers who have mapped the area, using a schematic of the turbine locations which was leaked to us, we know this:

Number of homes within 800 meters of a turbine: 43

Number of homes within 1.6 km of a turbine: 234

TOTAL number of homes that would be most affected: 277

At an average of 2.5 people/home, that would be 692 people, and at an average of 16.5% affected by distress/annoyance, that would be 114 people.

This is considered to be a conservative figure as Health Canada did not do any follow up on the significant number of houses it discovered vacant or demolished in the study. These were “mature” turbine projects and as we know from the experience of people living in areas like Chatham-Kent, Clear Creek, Ripley and Kincardine, the people most affected leave within six months to a year.

114 people.

At least some of them children.

And yet the Ontario government continues to approve these power projects, despite evidence of harm to health, and the fact that Ontario does not need the power. And the wind power lobby group, the Canadian Wind Energy Association (CanWEA) persists in the mythology that wind power is clean and good for the environment.

Health Canada is taking no action, despite these results, and has no intention of studying wind turbine noise further*. The people of North Gower have a right to expect more from the federal government, and from Health Canada, which is supposed to used sound science principles to protect citizens.

Our Member of Parliament is Pierre Poilievre at pierre.poilievre@parl.gc.ca if you have any comments on what the Health Canada study means to you and our community.

Ottawa Wind Concerns

PO Box 3, North Gower ON  K0A 2T0

ottawawindconcerns@gmail.com

*As per a personal meeting with the study team representatives, Ottawa, November 7.

Health Canada needs to take action on wind farms: noise study “too little, too late”

29 Saturday Nov 2014

Posted by in Health, Ottawa, Wind power

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November 28, 2014 Canadian Medical Association Journal blog

Carmen Krogh, BScPharm (retired), is a peer reviewed IWT health researcher and formerDirector of Publications and Editor-in-Chief of the CPS.

R Y McMurtry is Professor Emeritus (Surgery) of Western University (formerly University of Western Ontario). Dr. McMurtry was also anADM at Health Canada 2000-02

Industrial wind turbines (IWTs) are being erected at rapid pace around the world. Coinciding with the introduction of IWTs, some individuals living in proximity to IWTs report adverse health effects including annoyance, sleep disturbance, stress-related health impacts and reduced quality of life. [i],[ii],[iii],[iv],[v],[vi],[vii],[viii],[ix],[x],[xi],[xii] In some cases Canadian families reporting adverse health effects have abandoned their homes, been billeted away from their homes or hired legal counsel to successfully reach a financial agreement with the wind energy developer.[xiii]

To help address public concern over these health effects Health Canada (HC) announced the Health Canada Wind Turbine Noise and Health Study (HC Study) 2 years ago and brought forth preliminary results November 6, 2014.

Here we briefly comment on the HC Study results and provide some historical context.

Acknowledgement of IWT adverse health effects is not new. The term “annoyance” frequently appears when discussing IWT health effects.

In a 2009 letter the Honourable Rona Ambrose, disclosed:

“Health Canada provides advice on the health effect of noise and low-frequency electric and magnetic fields from proposed wind turbine projects…To date, their examination of the scientific literature on wind turbine noise is that the only health effect conclusively demonstrated from exposure to wind turbine noise is an increase of self-reported general annoyance and complaints (i.e., headaches, nausea, tinnitus, vertigo).” [xiv]

In 2009, the Canadian Wind Energy Association (CanWEA) sponsored a literature review which acknowledges the reported symptoms such as headaches, nausea, tinnitus, vertigo and state they “… are not new and have been published previously in the context of “annoyance”…” and are the “… well-known stress effects of exposure to noise …”[xv]

In 2011, a health survey of people exposed to IWTs in Ontario reported altered quality of life, sleep disturbance, excessive tiredness, headaches, stress and distress. [xvi]

In the same year, CanWEA posted a media release which advised those impacted by wind turbine annoyance stating “The association has always acknowledged that a small percentage of people can be annoyed by wind turbines in their vicinity. … When annoyance has a significant impact on an individual’s quality of life, it is important that they consult their doctor.”[xvii]

It turns out it’s not a small percentage of people annoyed by wind turbines. An Ontario Government report concluded a non-trivial percentage of persons are expected to be highly annoyed.

The December 2011 report prepared by a member of CanWEA for the Ontario Ministry of Environment states in the conclusions:

“The audible sound from wind turbines, at the levels experienced at typical receptor distances in Ontario, is nonetheless expected to result in a non-trivial percentage of persons being highly annoyed. As with sounds from many sources, research has shown that annoyance associated with sound from wind turbines can be expected to contribute to stress related health impacts in some persons.”[xviii]

The World Health Organization (WHO) acknowledges noise induced annoyance to be a health effect [xix] and the results of WHO research “…confirmed, on an epidemiological level, an increased health risk from chronic noise annoyance…”[xx]

HC also acknowledges noise induced annoyance to be an adverse health effect. [xxi],[xxii] The Principal Investigator of the recent HC Study also states “noise-induced annoyance is an adverse health effect”. [xxiii]

Canadian Government sponsored research has found statistically significant relationships from IWT noise exposure.

A 2014 review article in the Canadian Journal of Rural Medicine reports:

“In 2013, research funded by the Ontario Ministry of the Environment indicated a statistically significant relation between residents’ distance from the turbine and the symptoms of disturbed sleep, vertigo and tinnitus, and recommended that future research focus on the effects of wind turbine noise on sleep disturbance and symptoms of inner ear problems.” [xxiv]

Recently on November 6, 2014, HC posted on its website preliminary results of its HC Study[xxv]. Wind turbine noise “…. annoyance was found to be statistically related to several self-reporting health effects including, but not limited to, blood pressure, migraines, tinnitus, dizziness, scores on the PSQI, and perceived stress” as well as related to “measured hair cortisol, systolic and diastolic blood pressure.”

These troubling results come as no surprise. Since at least 2007 HC employees including the Principal Investigator of the HC Study recommended wind turbine noise criteria which they predict will result in adverse health effects. (i.e. result in an increase percentage highly annoyed).[xxvi],[xxvii],[xxviii]

Then turbines were built and HC spent 2.1 million dollars to find out it appears to have under predicted the impact of IWT noise. HC’s IWT noise criteria does not use a dose response based on IWT noise but rather road noise. But of course IWTs are not cars and peer-reviewed studies consistently document that IWTs produce sound that is perceived to be more annoying than transportation or industrial noise at comparable sound pressure levels. [xxix],[xxx]

IWT noise annoyance starts at dBA sound pressure levels in the low 30s and rises sharply at 35 dBA as compared to road noise which starts at 55 dBA. These findings are further supported by the HC Study’s preliminary results.[xxxi]

IWT noise characteristics that are identified as plausible causes for reported health effects include amplitude modulation, audible low- frequency noise (LFN), infrasound, tonal noise, impulse noise and night-time noise. [xxxii]

The logical solution would be to develop IWT noise criteria which will protect human health but that would present a barrier to wind energy development. Noise limits impacts IWT siting, cost of energy produced [xxxiii] and by extension corporate profits. The wind energy industry has actively lobbied governments to be granted IWT noise exposure limits which benefit their industry.

Canadians trying to understand this should be mindful the Government of Canada has invested and distributed significant amounts of public money to attract and support the wind energy industry. [xxxiv],[xxxv],[xxxvi],[xxxvii],[xxxviii],[xxxix],[xl],[xli] In addition to providing funding, the Government of Canada in collaboration with wind industry stakeholders has developed the Wind Technology Road Map (Wind TRM) [xlii] which Natural Resources Canada defined to be an “…industry-led, government supported initiative that has developed a long-term vision for the Canadian wind energy industry …”.[xliii]

Canada’s Wind TRM states “Members of the Steering Committee, government and our industry will be using this roadmap to direct the actions that are necessary for Canada to develop its vast wind resources.”[xliv] HC is a member of the Interdepartmental Wind Technology Road Map Committee [xlv] which was created to assist in the implementation of Canada’s Wind TRM. [xlvi] One of the “key action items” detailed in the Wind TRM calls for Government and Industry collaboration to develop and maintain government documents that address concerns raised about wind energy projects including that of noise, infrasound and other. [xlvii]

Some jurisdictions are trying to take action to protect their residents. For example, several municipalities in Ontario are trying to establish bylaws that protect from IWT noise. In Wisconsin, on October 14, 2014 the Brown County Board of Health unanimously approved a motion to declare the IWTs at a local project a Human Health Hazard. [xlviii]

It would appear HC’s research effort is too little too late. A non-trivial percentage of Canadians continue to experience adverse health effects. HC now has additional scientific evidence of the “conclusively demonstrated” effects from exposure to IWT noise. It is time for HC to take action to help Canadians maintain and improve their health.

Read the full posting here.

Expert panel says Health Canada noise study shows turbine noise causes adverse health effects

26 Wednesday Nov 2014

Posted by in Health, Renewable energy, Wind power

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Nobody home? Health Canada didn't bother to ask why

Nobody home? Health Canada didn’t bother to ask why

HEALTH CANADA NOISE STUDY A MISSED OPPORTUNITY TO FIND THE TRUTH: WIND CONCERNS ONTARIO

(Reposted from the Wind Concerns Ontario website)

Wind Concerns Ontario advises results summary and public pamphlet be withdrawn

November 25, 2014

On November 6, 2014, Health Canada released its long-awaited results of the $2.1-million, publicly funded Wind Turbine Noise and Health Study. Only, it didn’t: what was released in a whirlwind public relations effort was a summary of the study results—no data was presented, nor was there a full formal report, or a publication that had undergone the promised “peer” review, by scientists.

Wind Concerns Ontario immediately convened an expert panel to review the documents available (the summary plus a PowerPoint presentation, and basic study details available on the government website) and has produced a summary report of their comments. The panel consisted of several university professors with expertise in physics and acoustics, as well as an epidemiologist, and a health researcher.

The unanimous conclusion of the expert panel is that the study design was flawed; even so, there are clear findings of a relationship between wind turbine noise and adverse health effects.

Key findings from the review panel:

  • Study summary was released prematurely, without a full report, expected peer review, supporting data or analysis
  • Study design was to raise questions but Health Canada concludes inappropriately there is “no association” between turbine noise and adverse health effects; however, the study does find significant correlation between turbine noise and annoyance (an established adverse health effect)—these statements contradict
  • Population sample used included people who were getting a direct benefit from wind power development including money
  • A significant number of addresses were found to have vacant homes or houses that had been demolished—the reasons for this were not explored
  • Work on infrasound and low frequency noise is completely inadequate, say acoustics experts. One hour averages were used (in summer, the season of low wind); also industry-sourced estimates of yearly averages were used in place of actual in-home noise measurement
  • Numerous biases and other errors affect the credibility of some of the study results, as presented in the summary

As the stakeholder group in Ontario, a coalition of community groups and individuals concerned about the impact of industrial-scale wind power generation projects on human health, the environment, and the economy, Wind Concerns Ontario wishes to express its disappointment in Health Canada, which has as its goal the protection of the health of Canadians, using sound science.

Wind Concerns Ontario sent a letter today to the Minister of Health, the Honourable Rona Ambrose, together with the summary of our review panel comments, and a series of recommendations.

We recommend that:

  • Health Canada should remove the summary findings from the Health Canada website in their current version
  • Health Canada should release the final report only after it has gone through the normal peer-review process and been accepted for publication in a recognized academic journal
  • Health Canada should return to the study areas and present the study findings in a series of public meetings, as befitting a publicly-funded research project
  • Health Canada should rescind the “pamphlet” in its current form and if such a publication is deemed necessary, remove the claims about the “comprehensive” nature of the study, and further, affix the disclaimer more prominently.

Please read the full commentary document based on our review panel input here. WCO-HCanResponseNov25

windconcerns@gmail.com 

Wind turbine noise and health: what the wind lobby doesn’t want you to know

26 Wednesday Nov 2014

Posted by in Health, Renewable energy, Wind power

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The wind industry is dangerous to human health, posing risks to everything from dizziness and nausea to chronic stress and heart conditions

Lawrence Solomon, FR Comment, The Financial Post, November 25, 2014

A Canadian court will soon decide if wind turbines violate Canada’s Charter of Rights and Freedoms by posing a risk to human health. Charter case decisions can be convoluted but the fundamental question of health at issue here is straightforward. Wind turbines, from all that is today known and by any rational measure, represent a risk to those living in their vicinity.

Although the wind industry and its government backers tend to dismiss concerns, the evidence of harm in communities that host wind turbines is overwhelming. Literally thousands of people around the world report similar adverse health effects, some so serious that owners abandon their homes. Studies of noise from turbines — though few in number, short in duration, tentative in their findings and conducted by interested parties — point to dangers. As if these weren’t enough, basic science sounds the alarm on wind turbines.

Wind turbines produce audible sound waves known to cause what medical science calls “annoyance,” a state of health that can lead to a constellation of illnesses called wind turbine syndrome (WTS). As Health Canada reported earlier this month, following a Statistics Canada survey it commissioned of people living in the vicinity of wind turbines, “[wind turbine noise] annoyance was found to be statistically related to several self-reported health effects including, but not limited to, blood pressure, migraines, tinnitus [ringing in the ears], dizziness” and sleep disorders. The annoyance was also found to be statistically associated with objective measurements of chronic stress and blood pressure. Health Canada’s bottom line: “the findings support a potential link between long-term high annoyance and health.”

The audible sound waves — these have a frequency above 20 Hz — may be the least of the worries faced by those living near wind turbines. The turbines also produce copious amounts of sound waves below 20 Hz, making them inaudible to the human ear and thus, say wind proponents, harmless. Yet sound at this low frequency, known as infrasound, should not be thought of as faint or weak. The U.S. military has studied the use of infrasound in non-lethal weapons. Many mammals — giraffes, elephants, whales — communicate with each other at infrasound frequencies, even when many kilometres apart. Powerful infrasound waves, in fact, explain how animals sense the coming of earthquakes well before humans do — and why animals fled to safety during the calamitous Sumatran and Japanese tsunamis of recent years.

Read the full article and comments here.

The wind power project that was proposed for the North Gower area was to be 8-10, 2.5 megawatt wind turbines. 1,000 homes would have been within 3 km of the turbines. No new project has yet been proposed under the new “procurement” process for large renewable power projects (which we don’t need)  in Ontario.

Wind farm Constitutional challenge now before the judges

21 Friday Nov 2014

Posted by in Renewable energy, Wind power

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Wind farm legal decision expected before January

Turbines near Ridgetown: environmental review tribunals ignore evidence of adverse health effects
Turbines near Ridgetown: environmental review tribunals ignore evidence of adverse health effects

Big money on one side, families on the other

Jonathan Sher, London Free Press, November 20, 2014

A judicial fight over the future of wind turbines in Ontario wrapped up Thursday with the fate of the province’s green energy law in the hands of judges.

On one side is big money, wind energy giants like Samsung and a Liberal government intent on becoming a world leader in creating green energy.

On the other are four families in Huron and Bruce counties whose homes are close to dozens of proposed turbines.

But while it seems a David and Goliath affair, the underdogs have enlisted a legal pugilist who Thursday seemed to dance circles around the arguments of his adversaries, wrapping up a four-day hearing in London with an emotionally-loaded challenge to three Superior Court justices.

“The system has utterly broken down,” said Julian Falconer. “You have been tasked with keeping these people safe.”

Falconer was the most dynamic of lawyers representing four families in Southwestern Ontario battling the building of wind farms.

It’s not the first time lawyers have challenged the Green Energy Act in court. Three years ago, wind opponents lost in court fighting a decision by an environmental review tribunal to allow a wind farm. But the 2011 effort had a handicap this one does not — it was a judicial review, in which judges must give deference to the tribunal.

This time, Falconer wants the three-judge panel to:

  • Halt, by issuing what’s called a stay, wind farms that are expected to be tested in January.
  • Rule the environmental tribunal violated the constitutional rights of wind opponents when it refused to allow new evidence from a Health Canada study.
  • Allow wind opponents to stop wind farms by showing they might be seriously harmed rather than proving they had been harmed.

The judges expect to issue a decision on the stay soon, and while they didn’t specify a date, it’s likely they’ll act by January.

Environmental review tribunals shield their eyes to contrary evidence, Falconer said.

“They keep the blinders on. They’re not interested in new information. They’re interested in getting the turbines up,” he said.

But lawyers for the government and wind companies disagreed, one arguing the Health Canada study only showed a link between turbines and annoyance and the early results hadn’t yet been peer-reviewed.

“It’s a work in progress,” said Darryl Cruz, who represents St. Columban Energy.

The decision by the environmental tribunal was correct and wind companies should be allowed to complete their wind farms, he said.

That’s a position one Niagara wind opponent has been fighting for about four years, moving from her Welland home to keep away from planned turbines.

“It’s just wrong,” Catherine Mitchell said.

Wind opponents say turbines cause dizziness, headaches, heart palpitations and other illness.

The government says that’s wrong and that neighbours are protected because turbines are placed at least 550 metres from homes.

Ontario has more than 6,000 wind turbines built, planned or proposed, mostly in the southwest. Turbines account for about 4% of Ontario’s power.

Read the full article here.