on “EMFacts Consultancy” – March 25, 2010
From Georgiy Ostroumov:
The most dangerous sources of microwave radiation:
I should like to tell you about the most dangerous sources of
microwave radiation (EMF, RF; electromagnetic fields, radiofrequency
electromagnetic fields, high frequency microwave radiation, etc). I am
seeing that many people are suffering from microwave radiation but
they do not often know about sources (radiating units) of the strong
Allow me to introduce briefly myself. I live in Kotka, Finland. I am
a radio engineer, Ph.D. in the field of microwave technique. My skills
are measurements of microwave radiation and reduction of all
radiations (microwave radiations and low frequency fields) from mobile
phones. I am electrosensitive.
European Parliament resolution (on health concerns associated with
electromagnetic fields) was published (2.4.2009). The European
Parliament calls on all parties to follow precautionary principle
(ALARA- As Low As Reasonably Achievable). The European Parliament has
suggested many ways to reduce exposure of the general public to
microwave radiation. It was planned for full frequency range up to 300
GHz. How are the plans being carried out?
The joint statement from the Nordic Radiation Safety Authorities
(exposure of the general public to radiofrequency electromagnetic
fields) was quickly published (16.11.2009). It was done only for
radiofrequency range from 10 MHz to 2,500 MHz (2.5 GHz). There is such
opinion in the statement:” According to measurements performed in
all the Nordic countries exposure of the general public to these
background fields is typically far below 1/100th of the exposure
limits. The Nordic authorities therefore at present see no need for a
common recommendation for further actions to reduce these
The Nordic Radiation Safety Authorities referred to the exposure
limits of the ICNIRP (International Commission on Non-Ionizing
Radiation Protection). By the way, we know exposure limits, which are
far below 1/100th of the exposure limits of the ICNIRP.
The joint statement is a half-truth.
Let us say whole truth about microwave radiation.
I can speak to you only about Finland. Finnish Radiation and Nuclear
Safety Authority (STUK) says itself that the background fields are up
to 1/1000-1/200th of the exposure limits of the ICNIRP in some living
places. It means 4,500-22,500 µW/m2. Moreover, STUK recently
evaluated background fields as 1/42th of the exposure limits (in
Turku). But many independent researchers say that a safe level is only
up to 100 µW/m2(indoor). Thus those background fields should be
reduced essentially. A safe level of the background fields for mobile
communication should be within the limits of 0.1 and 10 µW/m2. It is
ALARA-principle for mobile communication (in this case all base
station radiate as low as possible and so do all mobile phones).
The Nordic Radiation Safety Authorities said:”If the number of fixed
antennas is reduced, mobile phones will need to use higher power to
maintain their connection, thereby the exposure of the general public
That needn’t be so. For example, the European Parliament urges the
authorities responsible for authorizing the siting of mobile telephony
antennas to reach agreement, jointly with the operators in that
sector, on the sharing of infrastructure, in order to reduce the
volume thereof and the exposure of the public to microwave radiation.
Is it enough? I should give you my examples.
Nordic Radiation Safety Authorities should carry out at least their
own suggestion (”The Nordic authorities wish to emphasize the fact
that to reduce the total exposure received by the general public from
wireless communication systems, it is necessary to carry out
integrated planning that takes into account radiation emitted both
from fixed antennas and hand-held devices such as mobile phones.”).
It is very important because of strong radiation emitted fixed
antennas of microwave units (see below)! I have to emphasize the fact
that the Nordic Radiation Safety Authorities inform correctly about
this problem. But they had better do correctly something. What am I
speaking about? The STUK is the leading organization in the Finnish
project COSMOS (cohort study of mobile phone use and health). As many
as 30,000 persons were engaged in this study. Unfortunately there are
not any measurements of the radiation emitted from fixed antennas in
the Finnish project. Thus this long-term (at least for 10 years) study
is entirely wrong.
But allow me to tell you about the greatest danger. Why did the Nordic
Radiation Safety Authorities speak only about radiations (background
fields) in the radiofrequency range from 10 MHz to 2.5 GHz? I have
measured all background fields in frequency range from 1 MHz to 7 GHz
with spectrum analyzer in my bedroom. Total radiation in frequency
range from 1 MHz to 5 GHz is about 400 µW/m2. Total radiation in
frequency range from 5.725 GHz to 7 GHz is about 130,000 µW/m2. It
means already 1/77th of the exposure limits. Moreover, I measured
radiation in this frequency range in other places of some towns.
Levels of the radiation were 200,000-2,000,000 µW/m2 (1/50th-1/5th of
the exposure limits). Individual unit radiated strongly for a long
time! How about total exposure in those places? Such bad situation is
typical for the towns of South Finland. Thus long-term radiation (the
background fields) in the frequency range from 5.725 GHz to 7 GHz is
doing ecological catastrophe in many towns of Finland.
Exposure of a user to this radiation is as dangerous as exposure of
the user to radiation from his or her mobile phone! Just imagine!
That is why, it is important to carry out measurements of all
background fields (microwave radiations emitted from all fixed
antennas) when health of mobile phone users is studied.
I did not measure all radiations in frequency range from 5 GHz to
5.725 GHz because of radars. I cannot calculate exactly total exposure
in this frequency range because the radars emit strong short pulses
for the time being. By the way, weather radar radiation (peak) in my
bedroom was 230,000 µW/m2 (distance is about 30 km! Frequency range
is 5.5-5.65 GHz). The weather radar irradiates accidentally
neighboring towns too. Perhaps it is dangerous.
There are many various radiating units in the frequency range from
5.725 GHz to 7 GHz. But the most dangerous units for general public
are microwave radio relay links and terrestrial base stations for
satellite communication. These units irradiate people mostly because
of inappropriate installation of antennas. Our predecessors installed
the antennas chiefly out of the towns on high masts (70-100 m). Some
years ago situation was changed. The antennas are being often
installed in the towns on shorts masts (15-30 m) at present. In this
reason exposure of the general public to microwave radiation is
Both radio relay links and terrestrial base stations work in frequency
range above 7 GHz too.
(Who would calculate correctly total exposure to radiation for whole
frequency range? No one from the Nordic Radiation Safety Authorities
can do it at present. According to the ICNIRP, correct value of
exposure is only SAR (Specific Absorption Rates-basic restriction
quantity) in frequency range up to 10 GHz. Of course, one can use the
other value-power density (reference level quantity) in this frequency
range, but it does not matter. Correct value of exposure is only power
density (basic restriction quantity) in frequency range above 10 GHz.
Thus one has total exposure in whole frequency range (both below 10
GHz and above 10 GHz), but one has no any possibility to calculate
correctly level of danger! Of course, both all ecological
organizations and some countries, as well as I, have always measured
power density only).
Please note, that radio relay links, terrestrial base stations for
satellite communication and radars may have different frequency ranges
in various countries. For the most part microwave radio relay links
should be replaced with optic fiber and/or free space optic. These
radiations could be reduced to zero without any technical problems. By
the way, booth optic fiber and free space optic often are more
cost-effective than microwave radio relay links are.
All strong radiations should be reduced significantly because exposure
of the general public to these background fields is typically far
above 1/100th of the exposure limits. Level of these radiations might
be reduced to 10 µW/m2. Fortunately there are few living places with
strong radiations in the radiofrequency range from 10 MHz to 2.5 GHz
in Finland. Unfortunately there are many towns with strong radiations
in frequency range above 5.725 GHz in Finland. How about your
countries? We are all in trouble, I am afraid.
Thank you for your attention.
Georgiy Ostroumov email@example.com
P.S. I and my friends had sent our notes about radiations to blogs of
the STUK, afterwards the blogs were removed at all! Nevertheless one
can read our notes, including the STUK censored blogs (mostly in
Finnish) at Link: http://beyondcreativity.blogs.com/