EFFECT OF ULTRASONIC NOISE ON HUMAN BODY

The pulsating and low frequency humming and rumbling/vibration is a life threatening issue we are facing daily because of the pulsed RF/microwave signals in our air caused by the telecommunication layer on the Smart Grid power lines.   The tinnitus, ringing and pressure in your ears and head are because of the Radio frequencies used for smart metering.  The paper describes the concerns with workers, working an 8 hour shift.  Little did they imagine or foresee in the 70’s a future some 46 years later where we have this noise pollution in our environment 24 hours a day, every day and night assaulting the entire population!!!!  Lawyers, engineers, authorities time to take responsibility for this crime and do your part.  Citizens time to do the same by refusing the smart meter on your home, writing your reps and politicians.  Join our fight.  We cannot do this without you….Sandaura

International Journal of Occupational Safety and Ergonomics (JOSE) 2013, Vol. 19, No. 2, 195–202

This paper was based on the results of a research task carried out within the scope of the first stage of the National Programme

“Improvement of safety and working conditions” partly supported in 2008–2010—within the scope of research and development—by the

Ministry of Science and Higher Education/National Centre for Research and Development. The Central Institute for Labour Protection –

National Research Institute was the Programme’s main co-ordinator.

Correspondence should be sent to Bożena Smagowska, CIOP-PIB, ul. Czerniakowska 16, 00-701 Warszawa, Poland. E-mail:

bosma@ciop.pl.

Effects of Ultrasonic Noise on the Human

Body—A Bibliographic Review

Bożena Smagowska

Central Institute for Labour Protection – National Research Institute, Poland

Małgorzata Pawlaczyk-Łuszczyńska

Department of Physical Hazards, Nofer Institute of Occupational Medicine, Łódź, Poland

Industrial

EXCERPTS:

4. SUBJECTIVE SYMPTOMS OF

EXPOSURE TO ULTRASONIC

NOISE

Many studies confirmed the appearance of subjective

symptoms of exposure to noise emitted by

ultrasonic devices like dizziness, balance disturbances,

tinnitus and fatigue [4, 23]. It is assumed

that those symptoms result from the effect of

noise on the vestibular system; however, further

studies are necessary [12].

According to the results of studies in the 1960s

and 1970s, “audible” components of the noise

It is worth mentioning that some subjective

effects of exposure to ultrasonic noise such as

fatigue, headache, discomfort or irritation may

disturb human cognitive functions [31, 32, 33,

34].

EFFECTS OF ULTRASONIC

NOISE ON FUNCTIONAL

CHANGES

Workers using ultrasonic devices suffered from

functional changes such as neurastenia, cardiac

neurosis, hypotension, heart rhythm disturbances

(bradycardia) and adrenergic system disturbances

[32]. Studies showed that exposure to sounds

with a frequency of 21 kHz and level of 110 dB

for 3 h daily for 10–15 days caused functional

changes in the cardiovascular and central nervous

systems [35]. Workers exposed to noise emitted

by ultrasound devices suffered from increased

neural excitability, irritation, memory problems

and difficulties with concentration and learning

[34].

Health standards are to prevent subjective effects

of exposure to ultrasonic noise and hearing damage.

Individual researchers at the turn of the

1960s and 1970s prepared first proposals of

health standards on occupational exposure [9, 37,

38, 39]. They were based on two basic assumptions:

(a) high audible frequencies (10–20 kHz)

may cause annoyance, tinnitus, headache, fatigue

and nausea and (b) ultrasound components (over

20 kHz) with high sound pressure level may

cause hearing damage. Therefore, admissible values

were determined at a level that does not eliminate

hearing damage and subjective effects

(fatigue, headache, nausea, tinnitus, vomiting,

etc.) [40, 41, 42, 43].

http://archiwum.ciop.pl/59815

 

 

 

 

 

 

Advertisements

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s