Maine acousticians Robert Rand and Stephen Ambrose release new study about infrasound and health effects

The DEP's "third party" noise expert, Warren Brown, has until now maintained that measurement of low frequency turbine noise is "preliminary and unrefined".  Studies like this should help Brown accept the mounting evidence that turbine noise causes Wind Turbine Syndrome and needs to be regulated accordingly.  

 

Cape Cod Online 

FALMOUTH — A study released last week concludes wind turbines in Falmouth negatively affect abutters' health.

The analysis was partially funded by a grant from Bruce McPherson, who opposes the Falmouth wind project and other turbine projects on Cape Cod. Its results assert that wind turbines cause "visceral" physical reactions and that sound waves from turbines are felt more intensely indoors than outside.

"We did not expect it," said Stephen E. Ambrose, a Maine environmental sound consultant who co-authored The Bruce McPherson Infrasound and Low Frequency Noise Study.

Ambrose declined to release the amount he was paid but said he and a partner each spent about 800 hours on the study.

Ambrose and Robert W. Rand, who also specializes in sound studies, conducted their research over three days in April, Ambrose said.

The two former employees of Stone & Webster Inc., a Stoughton engineering firm that designs and builds power plants, have conducted peer reviews on acoustics from turbines for several towns in Massachusetts, Maine and Wyoming.

For this study, Ambrose and Rand lived in a house near Blacksmith Shop Road for three days while measuring pressure originating from infrasound. They documented the intensity of sound frequencies from a privately owned turbine in the Falmouth Technology Park and how their bodies responded to it. The turbine studied is roughly the size of Falmouth's two municipal turbines.

When the two arrived at the house — located 1,700 feet from the turbine — on April 17, they began feeling effects within 20 minutes, according to the study. Both felt nausea, dizziness and anxiety, among other side effects.

They also reported having difficulty performing "normal activities" associated with the investigation, which included setting up instruments and observing measurements, the report states.

According to a chart included in the study, the discomfort and sick feelings intensified as wind speeds increased and the blades spun faster.

Previous sound studies that showed no negative health effects were done outdoors, Ambrose said. The recent study, which used low-frequency microphones to measure sound waves, showed sounds are more intense indoors than out. Data from this study showed a 10 dbG (a measurement for infrasound) increase outdoors and a 20 dbG increase indoors. The effect is similar to "living in a drum," he said.

An independent review of the acoustics data indicates it is scientifically valid, Nancy S. Timmerman, chairwoman of the Acoustical Society of America's Technical Committee on Noise, said in an email. She added that she can speak only to data on acoustics, not physiological effects reported in the study.

Jim Cummings, executive director of Acoustic Ecology Institute, another expert who looked at the study, said in an email the results could be a red flag on the correlation between infrasound and negative health effects, but more data are needed to establish proof.

"This is an indication, for sure, but a short sampling to base large claims on," Cummings wrote. "This and one other recent paper from the Association for Noise Control Engineers conference, Noise-Con, are both good indications that infrasound could be more problematic than generally assumed."

click the link to read the rest of the article...  http://www.capecodonline.com/apps/pbcs.dll/article?AID=/20111226/NE...

click here for a pdf of the actual study...http://randacoustics.com/wind-turbine-sound/the-bruce-mcpherson-ilf...

Views: 535

Comment

You need to be a member of Citizens' Task Force on Wind Power - Maine to add comments!

Join Citizens' Task Force on Wind Power - Maine

Comment by Dan McKay on December 30, 2011 at 4:06pm

Thank You, Robert and Steve for advancing the knowledge of the science of sound. The first step in establishing scientific proof is in the gathering of data and then asking why.  The answers are there, keep up the pursuit.

Hannah Pingree on the Maine expedited wind law

Hannah Pingree - Director of Maine's Office of Innovation and the Future

"Once the committee passed the wind energy bill on to the full House and Senate, lawmakers there didn’t even debate it. They passed it unanimously and with no discussion. House Majority Leader Hannah Pingree, a Democrat from North Haven, says legislators probably didn’t know how many turbines would be constructed in Maine."

https://pinetreewatch.org/wind-power-bandwagon-hits-bumps-in-the-road-3/

 

Maine as Third World Country:

CMP Transmission Rate Skyrockets 19.6% Due to Wind Power

 

Click here to read how the Maine ratepayer has been sold down the river by the Angus King cabal.

Maine Center For Public Interest Reporting – Three Part Series: A CRITICAL LOOK AT MAINE’S WIND ACT

******** IF LINKS BELOW DON'T WORK, GOOGLE THEM*********

(excerpts) From Part 1 – On Maine’s Wind Law “Once the committee passed the wind energy bill on to the full House and Senate, lawmakers there didn’t even debate it. They passed it unanimously and with no discussion. House Majority Leader Hannah Pingree, a Democrat from North Haven, says legislators probably didn’t know how many turbines would be constructed in Maine if the law’s goals were met." . – Maine Center for Public Interest Reporting, August 2010 https://www.pinetreewatchdog.org/wind-power-bandwagon-hits-bumps-in-the-road-3/From Part 2 – On Wind and Oil Yet using wind energy doesn’t lower dependence on imported foreign oil. That’s because the majority of imported oil in Maine is used for heating and transportation. And switching our dependence from foreign oil to Maine-produced electricity isn’t likely to happen very soon, says Bartlett. “Right now, people can’t switch to electric cars and heating – if they did, we’d be in trouble.” So was one of the fundamental premises of the task force false, or at least misleading?" https://www.pinetreewatchdog.org/wind-swept-task-force-set-the-rules/From Part 3 – On Wind-Required New Transmission Lines Finally, the building of enormous, high-voltage transmission lines that the regional electricity system operator says are required to move substantial amounts of wind power to markets south of Maine was never even discussed by the task force – an omission that Mills said will come to haunt the state.“If you try to put 2,500 or 3,000 megawatts in northern or eastern Maine – oh, my god, try to build the transmission!” said Mills. “It’s not just the towers, it’s the lines – that’s when I begin to think that the goal is a little farfetched.” https://www.pinetreewatchdog.org/flaws-in-bill-like-skating-with-dull-skates/

Not yet a member?

Sign up today and lend your voice and presence to the steadily rising tide that will soon sweep the scourge of useless and wretched turbines from our beloved Maine countryside. For many of us, our little pieces of paradise have been hard won. Did the carpetbaggers think they could simply steal them from us?

We have the facts on our side. We have the truth on our side. All we need now is YOU.

“First they ignore you, then they laugh at you, then they fight you, then you win.”

 -- Mahatma Gandhi

"It's not whether you get knocked down: it's whether you get up."
Vince Lombardi 

Task Force membership is free. Please sign up today!

© 2021   Created by Webmaster.   Powered by

Badges  |  Report an Issue  |  Terms of Service