Category Archives: Noise

Infrasound & Low Frequency Noise: Physics, Cells, Health & History

University of Waterloo
Live streaming of upcoming lecture  at University of Waterloo
Starts Thursday September 12, 2019 at 1:00 PM
Invited Talk:      Mariana Alves-Pereira

Title of the Lecture: “Infrasound & Low Frequency Noise: Physics, Cells, Health and History”

Click here for link

If you wish to attend in person at University of Waterloo see the following for more details:

Lecture “Infrasound & Low Frequency Noise: Physics, Cells, Health and History”

Speaker Bio:
Mariana Alves-Pereira holds a B.Sc. in Physics (State University of New York at Stony Brook), a M.Sc. in Biomedical Engineering (Drexel University) and a Ph.D. in Environmental Sciences (New University of Lisbon). She joined the multidisciplinary research team investigating the biological response to infrasound and low frequency noise in 1988, and has been the team’s Assistant Coordinator since 1999. Recipient of three scientific awards, and author and co-author of over 50 scientific publications (including peer-reviewed and conference presentations), Dr. Alves-Pereira is currently Associate Professor at Lusófona University teaching Biophysics and Biomaterials in health science programs (nursing and radiology), as well as Physics and Hygiene in workplace safety & health programs.

Dr. Mariana Alves-Pereira can be reached at:   m.alvespereira@gmail.com

Wind Turbines Can Cause Sickness

Wind Turbines Can Cause Sickness, Say Public Health Officials

WHO-HD CHANNEL 13 NEWS|August 12, 2019

WINTERSET, Iowa — The Madison County Board of Public Health is going on record to say that there are legitimate negative health effects caused by wind turbines.

Board Chair Dr. Kevin de Regnier said the board identified two concerns after a review of scientific literature and months of hearings and meetings with residents and MidAmerican Energy.

The two health concerns identified are:

  1. “Flicker” caused by the sun reflecting off turbine blades creates a strobe effect that can cause headaches and nausea.
  2. “Infrasound” is a soundwave just below what the ear can actually detect. It is created by the turbines disturbing wind flow.  It, too, can cause headaches and nausea.

“Resolved that the Madison County Board of Health determines that there is the potential for negative health affects associated with commercial wind turbines and that current setbacks are inadequate to protect the public health,” said Madison County Public Health in a statement to Channel 13.

The board recommends that any future wind turbine projects be 1.5 miles from any residence…..

READ ARTICLE

precautionary principle word map

Talk about Infra & Low Frequency Noise

A UNIQUE OPPORTUNITY TO HEAR PROFESSOR ALVES-PEREIRA TALK ABOUT INFRA AND LOW FREQUENCY NOISE

low frequency noise

Save the Date for an Invited Talk

Host:          Richard Mann  http://www.cs.uwaterloo.ca/~mannr

Speaker:   Mariana Alves-Pereira

Title: 

Infrasound & Low Frequency Noise: Physics, Cells, Health and History

Date:          Thursday September 12, 2019

Time:         1 pm Location: University of Waterloo Room: DC 1302 (Davis Center)

Speaker Bio:
Mariana Alves-Pereira holds a B.Sc. in Physics (State University of New York at Stony Brook), a M.Sc. in Biomedical Engineering (Drexel University) and a Ph.D. in Environmental Sciences (New University of Lisbon). She joined the multidisciplinary research team investigating the biological response to infrasound and low frequency noise in 1988, and has been the team’s Assistant Coordinator since 1999. Recipient of three scientific awards, and author and co-author of over 50 scientific publications (including peer-reviewed and conference presentations), Dr. Alves-Pereira is currently Associate Professor at Lusófona University teaching Biophysics and Biomaterials in health science programs (nursing and radiology), as well as Physics and Hygiene in workplace safety & health programs.

Dr. Mariana Alves-Pereira can be reached at:   m.alvespereira@gmail.com

marian alves pereia
Dr. Alves-Pereira Associate Professor at Lusófona University teaching Biophysics and Biomaterials in health science programs (nursing and radiology), as well as Physics and Hygiene in workplace safety & health programs.

Health Commission to Study Health Impacts of Land Based Wind Turbines

wind turbine shadowResolve to establish a commission to study the health impacts from land based wind turbines to protect the health of the citizens of the commonwealth. (Commonwealth of Massachusetts)

By Mr. Vieira of Falmouth, a petition (accompanied by resolve, House, No. 2015) of David T. Vieira, Sarah K. Peake and Julian Cyr for an investigation by a special commission (including members of the General Court) relative to the incidence and impacts of adverse health impacts from land based wind turbines. Public Health.

More Information on Resolve H.2015: The 191st General Court of the Commonwealth of Massachusetts

K2 Wind “farm” ordered to reduce Noise

k2 wind turbine T330

CTV London|May 27, 2019

The K2 Wind farm in Huron County needs to make some changes, the Ministry of Environment has ordered.

The wind farm operators must fix noise issues with their turbines, after noise testing found some of the turbines were “out of compliance.”

The order is vindication for Mike and Carla Stachura, who have been complaining about noisy turbines near their Dungannon area home for more than four years.

K2 Wind, which consists of 140 turbines, must now fix the noise issues either by limiting the hours the turbines operate, de-rating the turbines to reduce sound levels, or change when they use the turbines in relation to wind speed or direction.

They have until June 14 to have a plan to fix the noise problems. They also have the ability to appeal the provincial order.

The owners of the K2 Wind Farm, Axium Infrastructure, say they take “their responsibility to operate within the established guidelines of the Renewable Energy Approval permit very seriously, and we will continue to work closely with the ministry to resolve any operational issues that may arise.”

READ HERE

K2 Wind Out of Compliance

k2 wind a
K2 wind turbines

K2 Wind  under an issued provincial order by Ontario is to immediately comply with noise performance limits for operations of its industrial wind turbine installation.

[210] Mr. James, an expert called by the Appellants, provided a number of critiques of the noise assessment models used to predict sound levels produced by the Project. Mr.James agrees with the proposition that was put before him that the Approval Holder’s noise assessment reports comply with the MOE Noise Guidelines. He states, however, that there are serious issues with the Noise Guidelines themselves such that, by complying with the Guidelines, the actual level noise levels emanating from the Project will be underestimated.

ERT Decision 13-097/13-098, February 2014 READ HERE

k2 wind map
K2 wind turbine locations Township of Ashfield-Colborne-Wawanosh, Ontario

Wind turbine infrasound as a weapon

“Industrial wind turbine infrasound is not the best weapon, but it is a weapon. This German video documents the harmful effects of d the infrasound produced by industrial-sized wind turbines. The dangers of infrasound have been known since the 1980s when the U.S. military heavily invested in infrasound (below 20 Hz) as a weapon. It looked like it had great promise, according to Col. John B. Alexander who was involved in weaponizing it.. The military gave up on infrasound as its effects on people were too random: some potential targets were seriously debilitated; others not so much. This video presents various studies by acoustical engineers and other scientists showing infrasound’s affect on the ear, the heart, the brain and other organs.”

 

Acoustics & Biological Structures

“The dBA metric is, therefore, unsuited for evaluating airborne pressure waves occurring at frequencies below 800 Hz. Health effects that may be developing due to exposures at these lower frequencies cannot be properly studied if the dBA metric is being used to characterize acoustical environments.”

infrasound

Acoustics and Biological Structures; By Mariana Alves-Pereira, Bruce Rapley, Huub Bakker & Rachel Summers.Submitted: August 7th 2018Reviewed: November 28th 2018Published: January 9th 2019  DOI: 10.5772/intechopen.82761

Abstract

Within the context of noise-induced health effects, the impact of airborne acoustical phenomena on biological tissues, particularly within the lower frequency ranges, is very poorly understood. Although the human body is a viscoelastic-composite material, it is generally modeled as Hooke elastic. This implies that acoustical coupling is considered to be nonexistent at acoustical frequencies outside of the human auditory threshold. Researching the acoustical properties of mammalian tissue raises many problems. When tissue samples are investigated as to their pure mechanical properties, stimuli are not usually in the form of airborne pressure waves. Moreover, since the response of biological tissue is dependent on frequency, amplitude, and time profile, precision laboratory equipment and relevant physiological endpoints are mandatory requirements that are oftentimes difficult to achieve. Drawing upon the viscoelastic nature of biological tissue and the tensegrity model of cellular architecture, this chapter will visit what is known to date on the biological response to a variety of different acoustic stimuli at very low frequencies.

Keywords

  • infrasound
  • low frequency noise
  • health
  • cellular biology
  • tissue morphology

Open access. Each download brings research to wider audience.

Acoustics and Biological Structures

Noise We Can Not Hear

Infrasound

Infrasound occurs where large masses are in motion. This happens in nature – with avalanches and earthquakes, for instance. But infrasound also arises through technology and industry. It’s caused by large machines and blasting. Even wind turbines …

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“Infrasound
Noise we can’t hear”
Doku | planet e

Infrasound Noise We Can Not Hear: video 28 minutes

German Version