Mobile
phone use: It's time to take precautions.
Don
Maisch, April 2001. Emfacts Consultancy
As published in the ACNEM Journal, Volume 20, No.1, April 2001, pp. 3-10.
It
is usually through the newspapers that we first find out about
new scientific research, and
we tend to uncritically accept what is written as factual.
Behind the scene however, the articles are usually written by harried
reporters under tight deadlines. They simply
don't have the time, or often the inclination, to verify the accuracy
of the press releases that arrive at their desks. All too often they just
reprint, with some 'creative input', the words they received. And all too
often these words are about research funded and controlled by industry.
So
even when the science is clean and factual, it can be progressively spun and
refocused - both deliberately and unconsciously - to produce a change of emphasis,
without any identifiable distortion of the real scientific conclusions.
A
Case in Point: The Danish mobile phone study.
This
study, titled, Cellular Telephones and
Cancer - a Nationwide Cohort Study in Denmark
by C. Johansen, et al , was recently published in the Journal of the National cancer
Institute in February
2001. (1)
The
Australian
newspaper, on February 7th reported this study under the heading, "Mobiles
Get Clean Bill Of Health" ,
- which seems to be par for the course around the world.
The
Australian report says;"Mobiles phones are safe to use after all. Despite the scares, a
survey of 420,000 Danish mobile users found no evidence that the devices increase
cancer risk. It's the biggest and most comprehensive study yet, and according
to the American Physical Society, [Robert L. Park, see below] its "rock-solid
database make it difficult to take issue with the reports conclusion."
The study, published in Today's Journal of the National Cancer Institute,
says mobile users are no more likely than anyone else to suffer brain or nervous
system cancers, leukemia or salivary gland tumours."
Another
media release reported that, " Mobile phones, even when used regularly for as long as 18 years,
don't increase the risk of developing brain cancer . . .The study of 420,000
Danes who used cell phones for between four and 18 years."
Within
days of the Journal publication, this
industry-funded study was being promoted around the world as the final proof
that mobile phones were safe to use, with little attention being paid to the
source of the funding, or the actual words in the study conclusions. In Denmark,
home country of the study, one major newspaper headline read
"Go and use your mobile phone - nothing to worry about now".
However,
despite these repeated assurances of the study's "rock-solid database"
and claims of finality on the cell phone-health question, the opposite is
true.
While
the study included over 420,000 subjects, drawn from all Danish mobile phone
users from 1982 to 1995, only several thousand had used mobiles for more than
10 years In fact the majority of those studied had only used them for about
3 years.
The
report also questions the reliability of its own measurements of mobile phone
use, and the authors themselves caution that:"our
study may currently have too few heavy users to exclude with confidence a
carcinogenic effect on brain tissue following intensive, prolonged use of
cellular telephones."
So
how does a study with such inconclusive outcomes, hedged by doubts about the
reliability of short term use with long-term incubation period diseases, come
to be promoted around the world as final proofs of cellphone safety?
Cancers
don't arise overnight, and the prevailing scientific opinion is that it may
take at least 10 years of mobile phone exposure before epidemiologists are
able to detect any significant increase in related cancers - if such a causal
connection exists. Adult brain tumours typically have latencies of more than
10 years. So when the majority of users have only had their phones for three
years, it is obvious that this would tend to dilute statistical significance
in the study almost to a point of absurdity.
Two
recent American epidemiological studies, also looking at short-term use of
mobile phones, found no evidence of an increased risk of brain cancer. The
National Cancer Institute (NCI) study, led by Drs. Peter Inskip, Martha Linet
and Robert Tarone, found average mobile phone usage of under 3 years had no
significant increase in brain cancer and concluded that "these
data do not support the hypothesis that the recent use of hand-held cellular
telephones causes brain tumors, but
they are not sufficient to evaluate the risks among long-term, heavy users
and for potentially long induction periods."
This would certainly be the case, considering that only 35 of the NCI's
782 brain tumour cases had an average phone use over 15 minutes per day and
only 52 had used a mobile phone for more than 3 years. (2)
The
American Health Foundation (AHF) study, led by Joshua Muscat, looked at an
average duration of use 2.8 years
for brain tumour cases. Muscat
concluded that "The data showed
no correlation between the use of cellphones
and the development of brain cancer."
However, out of a total of 469 brain tumour cases in the AHF study
only 13
had used their phones for more than 20 minutes daily and only 17 had
used a mobile phone for 4 years or more. (3)
Commenting
on the NCI and AHF studies in the Melbourne Age
newspaper on Dec 22, Dr. David Samuels from the Australian Radiation
Protection and Nuclear Safety Agency (ARPANSA) said that, "Ionizing radiation,
such as X-rays, which are a known carcinogen and which cause a number of cancers,
can take up to 20 years" to have an effect. "Therefore these studies
haven't been going on long enough."
How
the experts can get it all wrong.
In
an editorial discussion which accompanied reporting of the Danish study
in the Journal of the national Cancer Institute,
Dr. Robert L. Park, wrongly claims that the famous 1997 NCI Linet study
on childhood cancer and residential EMFs as: "
. . . was done on such a scale and with such attention to potential sources
of error that it left little room for challenge. " (4)
The
fact is that the Linet study has been constantly challenged by many of the
top world experts in this field, ever since. Parks also accepts without question
the Linet study claim "that any link between the occurance of acute lymphoblastic
childhood leukemia and exposure to EMFs is too weak to detect or to be concerned
about."
Yet
dozens of other studies of the same kind have found such linkages and an international
team of leading epidemiologists have found that a pooled analysis of data
from nine different EMF studies found that children exposed to 4 mG or more
were twice as likely to develop leukemia. (5)
In
fact, the Linet study only came to that conclusion by EXCLUDING children with
EMF exposures over 2 mG. And below this level of exposure it is widely accepted
from previous epidemiological studies that EMF does not have a statistically
significant association with childhood leukemia.
Subsequent
re-analysis of the Linet data quite clearly shows that, if a 3 mG cut off
level had been used instead of 2 mG, the conclusion would have been just the
opposite. (6) In fact, this study is now widely used by both sides of the
debate, because when these higher exposure levels are included rather than
treated as anomalies, the statistics show there is a significant risk. (For
an analysis of the NCI Linet study see the article Powerline
Frequency Electromagnetic Fields and Human Health - Is it time to end further
research?, ACNEM Journal, Vol 17 No1, June 1998)
Although
the Danish study has only recently been published, it is already under fire.
The day after its release, a panel of scientists in Denmark debated the findings
and questioned the validity of drawing conclusions of safety.
In
summing up, the panel chairman Professor Albert Gjedde, a respected brain
specialist, said the study was inconclusive and recommended that a proper
study be undertaken, using better protocols.
Professor
Gjedde remarked that the group in the Danish study was not compared with a
control group of people who had brain tumours. Michael Repacholi, head of
the WHO's EMF research project also noted this and commented that as it was
not done according to the rules, put down by the WHO, the study was therefore
inconclusive.
Professor
Gjedde expressed concern that children could be more vulnerable, because their
brain cells are still growing, and therefore EMF had the potential to lead
to more serious brain damage than in adults. He
advised extreme caution in accepting assurances of safety, and
suggested Denmark should reduce children's exposure to mobile phone
emissions to a minimum. He concluded that the question of other bioeffects unrelated to cancer also need further investigation;
looking at possibilities that microwave fields from mobile phones could interfere
with the brain's own electric fields, and in the long run, damage brain function.
Possible
microwave effects other than cancer: A brief history of
Soviet vs. Western
While
most of the current research with mobile phone use examines the possibility
of brain cancer, a far different picture is seen in the former Soviet Union
medical literature, where a condition of "Microwave sickness" has
long been accepted by many scientists.
During
the second world war, concerns began to be raised in the USSR that military
personnel may be subject to health hazards from working with radar. In the
cold Siberian winters, servicemen soon found that standing in front of the
radar antenna was a great way to keep warm but rumours began to circulate
that it also caused sterility.
In
the 1940's various American military and government agencies also began investigating
the possibilities of RF/MW-induced health hazards. While they claimed to have
found no evidence of hazards they did recommended that radar and radio operaters
should avoid prolonged exposure as a precautionary measure.
In
the late 1940's and early 1950s several new studies came to light that raised
the possibility of health hazards involved with the use of microwaves. In
1948 two U.S. studies reported a possible link with cataract development and
testicular degeneration in dogs. These studies were mostly ignored, largely
because the companies that had developed microwave technology for the military
began to see consumer commercial possibilities. This was the time when wide
commercial use of microwaves saw the development of diathermy equipment, civilian
radar and later microwave ovens - all of which were seen as the wonders of
that age.
In
the techno-euphoria that followed the war, there was little interest in funding
research which could put a damper on expanding business opportunities. Then
the Cold War began and military uses of radar and other new equipment were
seen as paramount to the national interest. So any related human-health research
became even more hidden and clothed in secrecy.
However
in 1953 a study of workers at Hughes Aircraft Corp. found excessive amounts
of internal bleeding, leukemia, cataracts, headaches, brain tumours, heart
conditions and jaundice in those employees working with radar. (7) As a result,
the US military was forced to initiate the first 'open and public' investigation
into the biological effects of microwaves. The aim was to establish 'tolerance
levels' for both single and repeated
exposures, because it was generally
accepted that standard thresholds of tolerance exposure must exist. Since
little research data of this kind existed at that time, it was decided that
the known ability of microwaves to heat up tissue ( its 'thermal effects')
would be the main criteria, and with a safety margin applied, this has been
the foundation of all so-called Western safety standards since.
The
decision to choose tissue heating as the key exposure parameter was based
more on a lack of scientific data than for positive reasons, however it quickly
gained favour with both the military and industry as it created something
that could be claimed as a safety standard, and avoided (without openly dismissing)
the possibility that low-level, non thermal health effects could exist without
tissue heating.
The
"thermal school of thought" quickly became the accepted norm with
Western standard setting organizations and as a result the vast majority of
"science based" research was directed at short term, high level
exposures. Research into prolonged environmental level exposures that did
not cause tissue heating was not encouraged, simply because it was perceived
as a possible threat for technological development.
This
situation was well described by Dr. Rochelle Medici, a researcher on animal
behaviour, who said, "It is as though scientists had retreated from doing
challenging, frontier studies because such work engendered too much controversy
or elicited too much criticism. We are left with "Safe" but meaningless
experiments. The results of such experiments are a foregone conclusion".
In
the USSR however, a vastly different political and economic system resulted
paradoxically in giving their scientists far more democratic and academic
freedom (and funding) than their Western counterparts in choosing the focus
of their research efforts. Private
corporations did not exist and the Soviet military was EXEMPT from having
to comply with exposure standards. They could happily design and deploy their
equipment without fear of conflict
with regulations, or research findings. The result was the lowest EMF
Standard worldwide, designed to provide protection against prolonged
- low level (non-thermal) exposures.
While
microwave thermal effects are accepted by both Western and Soviet scientists,
it was only the Russians that expanded their own research to include extensive
studies with human workers that were exposed to non-thermal electromagnetic
fields. This research, gathered from actual human exposure experience, led
to the recognition of a condition called "Microwave Sickness", characterised
by the following symptoms: Increased agitation (Emotional upheavals) in combination
with nervous exhaustion, fatigue, muscle weakness, reduced intellectual activity,
absent mindedness / inability to concentrate,
increased sensitivity to external factors such as noise, bright light,
disturbed dreaming / sleeplessness, headaches, attacks of giddiness / dizziness,
unstable gait, cold hands and legs, heart problems such as palpitations, fast
or slow heart beat, breathing problems,
overactive thyroid and irregularities in the menstrual cycle. (8)
The
relevance of "Microwave Sickness" to mobile phone use is that, when
a phone is being used with the antenna near the head, the microwave exposure
to brain tissue can be in the range of the exposures reported to cause microwave
sickness. In addition, various mobile phone surveys in several countries have
found that users report similar symptoms that they link to their use of the
mobile phone: They complain of
frequent headaches, fatigue, burning sensations, dizziness, concentration
difficulties and memory loss.
Not
everyone experiences these symptoms of course, but some people appear to be
much more sensitive than others. Such biological (rather than psychological)
differences have been widely reported in research in such areas as microwave
hearing, where some people are certainly able to detect the direct effects
of high-frequency radio waves on the nerves of their inner ears.
A
public Health Issue?
The
past few decades have been a time of unprecedented technological development
which is increasingly altering the way we live, work and communicate, with
the widespread use of the mobile phone the most visible symbol of this technological
revolution. We currently have over 4 million users in Australia. In America,
about 30% of the population own a mobile phone, while the Nordic countries
are world leaders with 40% of Danes, 50% of Norwegians and Swedes, and almost
60% of Finns using them. In Britain nearly half of all British children aged
7 to 16 now have a mobile phone. Nokia has estimated that by the end of year
2000 there were more than 700 million users of mobile phones around the world.
At
the same time, this technology is now giving rise to important questions about
the possible long term health consequences of mobile phone use. Because of
the many millions now using them, even if only a small percentage of users
are adversely affected, that would still equate to a significant public health
issue due to the potential number of victims.
Are
mobiles proven to be 'safe'?
Back
in 1995, an Optus brochure titled: "Health effects of Mobile Phones"
said that:
"After
more than 6000 scientific studies the world over, there is still no convincing
evidence of any adverse health effects caused by electromagnetic fields from
mobile phones . . .
the international body of scientific research concludes there is no
link between mobile phones and
adverse health effects."
This
viewpoint has not changed much since.
For instance, in a letter to the Australian newspaper on February 6,
2001, Keith Anderson from the Australian Mobile Telephone Association assured
readers that mobile phones were safe because they are designed, built and
tested to meet "science-based safety standards" and that phones
with this "accreditation are safe".
However,
what is not said by the industry is
that their often quoted "international body of scientific research"
and "science-based safety standards" are irrelevant to mobile phone
use. They almost exclusively refer to research into biological effects from
short term (acute) exposure to high level RF/MW exposure - yet most of the
disease conditions which are believed to be relevant to RF/MW exposure are
those with long-low-level incubation periods - and are multi-causal (cancer,
Alzheimers, immune system compromises).
A
fact admitted by the International Commission on Non-Ionizing Radiation Protection
(ICNIRP). To quote:
"Most
of the established biological effects of exposure to RF fields are consistent
with responses to induced heating . . Most studies examined endpoints other
than cancer, many examined physiological and thermo-regulatory responses,
effects on behaviour and on the induction of lens opacities (cataracts) and
adverse reproductive outcome following acute exposure to relatively high levels
of RF fields. Very few studies are relevant to the evaluation of RF exposure
on the development of cancer in humans."(9)
What
is obvious from the ICNIRP statement is that the research needed to give an
assurance of safety for mobile phone use has not yet been done. It
is unscientific and profoundly irresponsible for the industry to refer to
unrelated research and attempt to use them as proof of safety for mobile phone
use.
A
hot consumer item
Various
research indicates that between 20% to 60% of the energy emitted from a mobile
phone is absorbed by the user's head.
The percentage absorbed depends on the design of the phone, type of
aerial or antenna (the stubby ones which you can not extend are worse because
they concentrate energy into the user's brain), and how far it is to the nearest
base-station mast, as the weaker the base station signal, the more the phone
will power up to maintain contact with the network.
Mobile
phone use can actually heat up brain structures. This was admitted in a March
1997 Australian government Discussion paper : "Human exposure to RFR
[radio frequency radiation] is greatest from mobile phone handsets because
of the method of use, with the
transmitting antenna of the mobile phone handset close to the head. There
is evidence that localized hot spots of energy deposition in the brain may
occur as a consequence of internal reflections."
Besides
the antenna, the case of a mobile phone also emits microwaves, due to a lack
of proper shielding in the case. Because of this, many mobile phones have
detectable emissions out of the base of the phone which 'couples' with the
hands-free ear piece wire and delivers microwaves into the ear piece. The
extent of this problem very much depends upon the type of phone used.
The
WTR and George Carlo
A)
As
a result of a widely publicized court case in the early 1990's in America,
where it was claimed a fatal brain tumour was caused by extensive mobile phone
use, the Cellular Telephone Industry Association (CTIA) set up the Wireless
Technology Research (WTR) research program in 1993. This research program
was funded to the tune of $ 27 million "to identify and solve any problems
concerning consumers' health that could arise from the use of these phones".
In
February of 1999, George Carlo, head of the WTR's research program and who
had prevously maintained the industry line that mobile phones were safe, stunned
the industry with a report that he presented to the annual convention of the
CTIA.
Specifically
Dr. Carlo reported to the industry convention that:
1.
The rate of death from brain cancer among handheld phone users was higher
than the rate of brain cancer death among those who used non-handheld phones
that were away from their head.
2.
The risk of acoustic neuroma, a benign tumor of the auditory nerve.was 50%
higher in people who reported using cell phones for 6 years or more; moreover,
that relationship between the amount of cell phone use and this tumor appeared
to follow a dose-response curve.
3.
The risk of rare neuro epithelial tumors on the outside of the brain was more
than doubled, a statistically significant risk increase, in cell phone users
as compared to people who did not use mobile phones.
Importantly
Dr Carlo stated that "appropriate steps have not been taken to protect consumers during
this time of uncertainty about safety" and that industry is "missing
a valuable opportunity by dealing with these public health concerns through
politics, creating illusions
that more research over the next several years helps consumers today and false
claims that regulatory compliance means safety".
Dr
Carlo also said that he "was alarmed that parts of the industry have ignored the scientific
findings suggesting potential health effects, have repeatedly and falsely
claimed that wireless phones
are safe for all consumers including children, and have created an illusion
of responsible follow up by calling for and supporting more research".
(10)
In
his just published book, "Cellphones: Invisable Hazards of the Wireless
Age", Dr. Carlo exposes the tricks and deception that the industry uses
globally to confuse the science and distort the evidence. From a litigation
point of view this is a gold-mine for the lawyers for, as with the tobacco
litigation, they stand to make millions if they can convince juries that a
widely-used consumer product is possibly harmful to health. Importantly, a
lawyer does not have to establish absolute causality, he just needs evidence
that the industry has systamatically covered-up and confused the scientific
evidence to make it difficult for the consumer to judge.
Taking this line, in January of this year, the American superlawyer
Peter Angelos took on the cell phone industry with an $800 million mobile
phone-cancer lawsuit in Maryland. Angelos who became famous for his litigation
against the asbestos and tobacco industries has won more than $ 1 billion
in personal injury law suits. (11)
Some
animal studies indicating adverse effects
The
use of specially bred mice and rats for laboratory research has long been
the accepted form for evaluating possibly toxic chemical substances for effects
on humans. This has also been the main method for attempting to determine
any adverse effects from exposure to microwave radiation, similar to that
which is emitted by mobile phones.
A)
A team of scientists funded by Telstra, investigating claimed links between
cellular phones and cancer, turned up a significant finding of concern. They
used 200 lymphoma-prone mice as highly sensitive detectors of possible cancer
promotion over their short life-span. Half of them were exposed and half not,
to pulsed digital phone radiation. The
work was conducted at the Royal Adelaide Hospital and it revealed a highly-significant
doubling of cancer rates in the exposed group.
The mice were subject to GSM-type pulsed microwaves at a power-density
roughly equal to a cell-phone transmitting for two thirty minute periods each
day. (12)
The
industry and government's general
response to these findings was that they should not be applied to humans
- which, if it were true, would condemn billions of dollars of similar rodent
research each year to the scrap heap.
B)
Investigating the possible effects of cell phone radiation on long-term
memory function, Dr Henry Lai of the University of Washington, conducted a
series of experiments on 100 rats in 1999.
He filled a large tank with opaque, milky water and gave the rats six
swimming trials where they learned to find safety platforms hidden just below
water level and therefore out of sight.
He
found that the rats exposed to short bursts of low-level microwaves forgot
the location of the safety platforms quickly, while the unexposed control
rats retained these important spacial memories.
Dr
Lai said about the findings: "The long-term memory of virtually all the
'exposed' rats appeared to have been affected. . . Short-term memory loss
is just being unable to remember something which you have just done or glanced
at. Long-term memory is something which has been learned or recalled and stored
in the brain.The data from this latest study is certainly a cause for concern."
(13)
In
an earlier 1994 study on microwave exposure effects on short term memory in
rat's ability to negotiate a maze, Lai and co-workers found a similar
effect. (14)
C)
Dr. Lai and co-workers also have 4 papers published on DNA damage with microwave
exposure. They have observed DNA damage in the brain cells of live rats after
only two hours of relatively low-level microwave exposure. The frequencies
used by Dr. Lai were above normal cell phones, but close to the new PCN mobile
phones widely used by American and European teenagers, and the lowest intensity
at which DNA strand breaks were discovered was well within the range of mobile
phone exposures. (15) (16) (17)
(18).
D)
Researchers at Lund University, Sweden, carried out experiments in 1999 on
a possible effect of mobile phone radiation on the brain's blood-brain-barrier,
a biological filter which isolates the brain and central nervous system from
material in the blood supply which could create problems with memory and processing
functions. Nervous tissue can't be replaced if attacked by the body's immune
responses, so toxins and certain substances, such as the protein albumen,
need to be prevented from entering the brain tissue, where they could have
long-term toxic effects.
The
researchers used rats and exposed them to microwaves which mimicked mobile
phone emissions. After two minutes exposure, the rats' blood-brain barrier
opened up, allowing the protein albumen to enter the brain. Even when the
microwaves were not strong enough to heat up the rats' heads, the scientists
detected the effect deep in the centre of their brains.
Professor
Leif Salford, the neurologist who carried out the research, said: " We
saw opening of the blood-brain barrier even after a short exposure to radiation
at the same level as mobile phones. We are not sure yet whether this is a
harmful effect, but it seems that molecules such as proteins and toxins can pass out of
the blood, while the phone is switched on, and enter the brain.We need to
bear in mind diseases such as MS and Alzheimer's which are linked to proteins
being found in the brain."
Professor
Salford said his team came up with the same findings when
they repeated the experiment. "So we think we are on to something
very significant," he said. Proteins are a normal part of the blood,
but can cause nerve damage if they
manage to get into the brain. (19) Salford has been doing BBB work for decades,
and is now discovering these effects at such low RF/MW levels because the
sensitivity of his toxic detection system has been progressively improving
over the years.
E)
Similar research, conducted by researchers at the University of Munster, Germany.,
Found that microwaves at the frequency of 1.8 GHz significantly increase
the permeability to sucrose of the blood-brain barrier in rat brain cells
in vitro. (20)
F)
In a paper titled Potential for Interaction
Between Specific Classes of Prescription Drugs and RF Fields from Hand-Held
Portable Telephones, scientists
from Canada's Radiation Protection Bureau (RPB) cautioned that RF/MW radiation
can " increase the permeability of the blood-brain-barrier and modulate
the action of some psychoactive drugs". (21)
A
few human exposure studies of concern
A)
Recent research by Lebedeva et al from the Russian Academy of Sciences found
direct cortex stimulation as a result of mobile phone exposure. In a series
of experiments with 24 volunteers, using a cellular phone type exposure they
found evidence of "brain functional changes" that continued after
exposure was stopped. (22)
B)
Other Russian research, examining the influence of cell phone microwave radiation
on the central nervous and cardiovascular
systems as well as temperature changes in the head of cell phone users found
that : Ultrahigh [microwave] frequency radiation induces significant changes
in local temperature and in physiologic parameters of central nervous and
cardiovascular systems". (23)
C)
In a British government-funded study, Dr. Alan Preece found that Cellular
phone radiation produced faster reaction times in tests on 35 volunteers exposed
to continuous and pulsed microwaves.
Preece believes that microwave effects below thermal levels cannot
be ruled out, and notes that "heat shock proteins" can also cause
increased blood flow. (24) (25)
D)
A world-renowned sleep laboratory at the University of Zurich has also published
a research paper in NeuroReport which suggests use of mobile phones just before
going to sleep can disturb the normal sleeping EEG patterns. The researchers
found that exposing volunteers to digital mobile phone radiation (GSM) for
30 minutes while awake significantly alters their EEG activity after they
fall asleep, compared to unexposed controls.
In an accompanying commentary in NeuroReport , Dr. Michael Petrides
notes that, "The currently available literature suggests that some aspects
of cognitive function and some direct measures of brain physiology may be
affected by exposure to electromagnetic fields of the type emitted by cellular
telephones."(26)
E)
Dr. Bruce Hocking, at one time the Chief Medical Officer of Australia's national
carrier Telstra, has examined 40 mobile phone users who complained of unpleasant
sensations such as a burning feeling or a dull ache mainly occurring in the
temporal, occipital or auricular areas.The symptoms often began minutes after
beginning a call, but could come on later during the day. Symptoms usually
ceased within an hour after the call, but could last until evening. Symptoms
did not occur with a normal handset, and were different from ordinary headaches.
There were several reports suggestive of intra-cranial effects.Three respondents
reported symptoms associated with wearing their mobile phone on their belts.
Dr Hocking concluded: Cranial and other diverse symptoms may arise associated
with mobile phone usage. Physicians and users alike should be alert to this.
(27)
F)
A 20-year study of servicemen (in Poland) has established the
strongest link yet between mobile phones and cancer. Research by Polish scientists shows a high cancer death rate
among soldiers exposed to microwave radiation - at levels comparable to that
emitted by mobile phones when in use.
This is believed to be the first significant study which shows a link
between humans, microwave radiation and cancer.
The
team checked the medical records of servicemen who were exposed to the radiation
between 1970 and 1990. It then compared their medical histories and death
rates to a group of soldiers who were not.
Researchers found those exposed - largely through using military equipment
- were more likely to get some cancers. They were also also more likely to
develop a whole range of cancers 10 years earlier than those who had not been.
There were higher death rates from cancers of the skin, brain, blood,
digestive system, blood and lymphatic system among the exposed group.
The Polish paper concludes: "To our knowledge, the data for the
first time presents a hint that there exists a relation between cancer risk
and exposure in microwave radiation fields." Dr Neil Cherry from Lincoln
University in New Zealand has found that, depending on the model of phone
used, exposures to the head may exceed the highest exposures mentioned in
the Polish study. (28) (29)
G)
Researchers
from the University of Essen, Germany, found that mobile phone use may be
associated with cancer of the eye. The researchers conducted a hospital-based
study of uveal melanoma and occupational exposures to different sources of
electromagnetic radiation. They interviewed a total of 118 female and male
cases with uveal melanoma and 475 controls matching on sex, age, and location.
They found a significantly elevated risk for users of RF/MW transmitting devices
such as radio sets and mobile phones.
Other sources of electromagnetic radiation such as high-voltage lines,
electrical machines, complex electrical environments, VDUs and radar units
were not associated with eye cancer. (30)
Heat-shock-proteins
and RF/MW: A possible mechanism
Dr
Peter French, at the Centre for Immunology, St Vincents Hospital, Darlinghurst
Sydney, has been conducting research into the possible production of 'heat
shock proteins' in the brain as a result of mobile phone use and will be publishing
his findings in the near future.
The
production of heat shock proteins is a natural defensive measure taken by
cells against biological damage resulting from protein un-folding. There are
a wide range of heat shock proteins made but they all perform similar functions
in that they bind to any unfolded proteins and assist in refolding them. This
can be caused by heat stress, some chemicals, and possibly exposure to non-thermal
RF/MW as well.
At
first this may seem to be OK, as the cells are reacting to an external stress
in order to prevent cell damage. However, in a review
of the research into heat shock proteins and their role in cancer,
published late last year in the Journal of the National Cancer Institute,
the authors mention research that has found that turning on heat shock proteins
repeatedly can cause cells to turn cancerous. (31) There is, as yet, no research
published that has specifically looked at whether or not heat shock proteins
are produced in the brains of mobile phone users but there is every reason
to consider this a likelihood because:
*Microwaves
at non-thermal power levels have been shown to elicit the heat shock protein
response in organisms (32).
*Microwave
radiation can cause physiological changes in brains and brain cells.
*Mobile
phone use can actually heat up brain structures (as mentioned earlier).
There
are indications that the heat shock protein response may be turned on by a
brief microwave exposure but
can take a number of hours to disappear out of the system. This would be of
concern for heavy users of the mobile phone as heat shock proteins may be
chronically present and over a number of years increase the chances of cancer.
Another possibility also warrants investigation. Perhaps in heavy users the
heat shock protein response 'shuts down' under repeated activation. In this
case the cell's natural protective response would then not be present in situations
where it is needed. Either way, this is not a desirable response and further
investigation should be a priority.
Implications
for new technology.
Dr.
French theorizes that microwave induced protein unfolding is not done by heating
but resonance with water molecules that are associated with the protein. If
this the case, then many of the new telecommunications devices which operate
around the 2.4 Ghz frequency, may elicit a greater production of heat shock
proteins.
What
about home cordless phones?
Though
cordless phones operate at lower frequencies and power levels than mobile
phones people do tend to use them for extended periods of time. This may be
of concern especially for children and teenagers who may tend be heavy users
of household cordless phones.
Special
concerns for children's use of mobile phones
In
1999 the British Government established an independent expert group called
the Stewart Inquiry, to examine possible health effects of mobile phones,
base stations and transmitters. They concluded in April of 2000 that, on balance,
the current evidence did not suggest that mobile phone technologies put the
health of the general population of the UK at risk. However, they cautioned
that the gaps in knowledge meant that it is not possible at present to say
that exposure is without potential adverse health effects and as such, a precautionary
approach was needed. Taking special consideration of the growing numbers of
children using mobile phones the committee stated:
"If
there are currently unrecognized adverse health effects from the use of mobile
phones, children may be more vulnerable because of their developing nervous
system, the greater absorption of energy in the tissues of the head . . .
, and a longer lifetime of exposure. In line with our precautionary approach,
we believe that the widespread use of mobile phones by children for non-essential
calls should be discouraged. We also recommend that the mobile phone industry
should refrain from promoting the use of mobile phones by children."
(33)
On
December 8, 2000 the German Academy of Pediatrics issued a statement advising
parents to restrict their children's use of mobile phones and are calling
for stricter RF/MW exposure limits. "Unnecessary, frequent and extended
use are to be strongly discouraged. Children only need mobile phones to communicate
very infrequently, in exceptional situations" the Academy said.
They advised that all mobile phone users should keep conversations
as "brief as possible" but that additional precautions are appropriate
for children in view of "special health risks" associated with their
growing bodies. (34)
Considering
research into an increased adverse health effect on children from radiofrequency
exposure, the most important is a Latvian study on 966 school children,
some conceived, born and raised in the area of a Russian early warning radar
station. Motor function, memory and attention significantly differed between
those exposed and those not. Children living in front of the station had less
developed memory and attention, their reaction time was slower and their physical
endurance was decreased. The study authors proposed the hypothesis that these
adverse effects are the results of chronic electromagnetic radiation effects.
(35)
In
a recent Australian Senate inquiry, CSIRO Telecommunications and Industrial
Physics chief Gerry Haddad warned that the new telecommunications exposure
standards being drafted neglected to take a high enough level of protection,
particularly in relation to children.
Mr. Haddad said: "Restrict use of mobile phones to children for
essential purposes . . A precautionary principle would seem to be a good idea."
Dr. Haddad complained that the CSIRO's view had been rejected in the
formulation of new emission standards that stopped short of advising that
children be restricted in their mobile phone use (36)
Taking
a Precautionary Approach
If
you look behind most recent battles over major public-health issues in the
last few decades - over asbestos, pesticides, herbicides, dioxins, PCBs, cigarettes
and general environmental pollution - the questions always resolve down to
one of the public health activists insisting on government regulators taking
a "precautionary approach", and the industries concerned lobbying
for the strict application of "scientific proof" before restrictive
measures are imposed.
The
corporations know well that "scientific proof" is virtually impossible
until the damage has been done, and with life-long accumulative damage, this
will take another generation. They
also know that the "strict application of sound science" will keep
them 'off the hook' for years to come.
In
the cell phone area, the argument is much the same.
With long-term diseases such as brain-cancer, it is clearly impossible
to establish any form of "scientific proof" which can be sustained
in a court "beyond all reasonable doubt", in just a few years.
And
so sensible regulators tend to take into account the potential for wide-spread
community damage to health and happiness.
They then make precautionary judgments accordingly, based on the best
scientific evidence available at the time, even though some of these findings
may be disputable.
Such
measures have served Australia and the USA well in the past; for instance,
in protecting the USA from the full ravages of thalidomide, and possibly today
in protecting the USA and Australia from such problems as mad-cow and foot-and-mouth
diseases.
As
globalization increasingly tends to merge us into a single world-wide market
place without a corresponding system of global regulation of corporate activities
or independent funding of the essential community health research, such precautionary
measures become even more important at both a personal and national level.
Countering
this precautionary approach is the increasing power of corporations over politicians,
and the skills developed in manipulating public opinion by corporate lobbyists,
polling companies, and public relations consultants.
These groups are now being aided and abetted by scientists who are
sometimes overtly corrupt, but more likely to just be corrupted by the system
of research funding and control.
Or
as Joseph Hotchkiss of Cornell University so succiently put it:
"A
host of techniques exist for manipulating research protocols to produce studies
whose conclusions fit their sponsor's predetermined interests. These techniques
include adjusting the time of a study (so that toxic effects do not have time
to emerge), subtle manipulations of target and control groups or dosage levels,
and subjective interpretations of complex data. Often such methods stop short
of outright fraud, but lead to predictable results. Usually associations that
sponsor research have a fairly good idea what the outcome will be, or they
won't fund it."
For
the estimated 700 million mobile phone users today, the assurances of safety
by the cell phone industry are indefensible when you look at the science,
and the obvious industry attempts to influence it.
In the opinion of a growing section of the world's legal fraternity,
the industry's attempts to 'pervert to course of science" will be their
undoing, exactly as what happened to the tobacco corporations.
However,
it is not only the mobile phone manufactures (and sellers) who should be concerned.
George Carlo, former head of the American cell phone industry's WTR project,
has warned of general corporate liability as an issue. Carlo said that CEO's
"need to ensure that their companies' employees operate cell phones and
other wireless devices in a manner that reduces health risks associated with
[cell phone] radiation - or face the consequences."
The
same view was expressed on an SBS Insight
program on mobile phone hazards by Solicitor Peter Cashman from Maurice Blackman
& Cashman.
"There
is now sufficient evidence in my view that any responsible employer who allows
their employees to be exposed ought to be taking preventative measures, ought
to be providing remote handsets, ought to be looking at the design of the
devices and ought to be trying to minimize the duration of exposure. Interestingly,
some of the more modern phones are now being redesigned to try to minimize
the risk, although the industry doesn't want to broadcast that. They do not
want to suggest that the earlier designs may have been deficient-therefore
exposing them to potential liability."
For
both the individual, employee and employers who use mobile phones, now is
the time to err on the side of
caution by following what is known as the precautionary approach, better known
as the precautionary principle.
A
UK definition of the precautionary principle concluded "We must act on
facts using scientific information. That does not mean we must sit back until
we have 100% evidence about everything. Where the public health is at stake,
the risks can be so high and the costs of later corrective action so great,
that prevention is better then cure. Where there are significant risks of
damage to public health, we should be prepared to take action to diminish
those risks, even when the scientific knowledge is not conclusive, if the
likely balance of costs and benefits justifies it".
Examples:
A)
The North Shore Hospital, which is also Sydney's main medical teaching institution,
has, as a precautionary measure, issued advice to staff in March of last year
to avoid unnecessary use of mobile phones to minimise potential risk from
microwaves. This hospital is also involved in the currently running NSW mobile
phone / brain tumour study that is examining brain tumour patient's use of
mobile phones.
B)
Also last year, The British Public and Commercial Services Union, representing
some 266,000 members, issued advice to its members on ways to reduce microwave
exposure from cell phone use.
Recommendations:
A)
For the reasons mentioned above, children should be discouraged from using
mobile (and cordless) phones as their developing bodies can be more prone
to radiation damage.
B)
Incoming mobile phone calls should be kept as brief as possible and returned
on a conventional wired phone.
C)
When a mobile phone is being used it should be held away from the body as
much as practical, not pressed against the head or clipped to a belt. Some
phones have an in built loudspeaker/microphone that allows conversations with
the antenna held away from the head.
D)
Use pagers as much as possible, or the mobile phone's message bank service
and return calls on a conventional phone.
E)
There have been conflicting reports that use of hands-free kits with mobile
phones may still expose the user
to microwave emissions due to a 'coupling effect' with the earpiece lead.
The extent of this problem very much depends upon the type of cellular phone
used but generally hand free kits do greatly reduce exposure. Hands free kits
are now available for most cell phones that incorporate ferrite filters in
the wire to eliminate any microwave emissions going into the ear piece. They
should be used in preference
to the "non-filtered" ones.
For
further information please contact the author, Don Maisch on e-mail: emfacts@trump.net.au
References
1)
Johansen C, Boice JD,
MCLaughlin JK, Olsen JH. Cellular
Telephones and Cancer--a Nationwide
2)
Inskip PD, Linet M, Tarone R. et al. Cellular
telephone use and brain tumors .
N Engl Med, Vol. 344,
3)
Muscat JE, Malkin MG, et al. Handheld
cellular telephone use and risk of brain cancer ,
JAMA, Vol. 284, pp. 3001-3004, 2000.
4)
Park RL. Editorial comment, J Natl Cancer Inst, Vol. 93, No.3, pp.
166-167, Feb. 7, 2001.
5)
Leading Epidemiologists See Childhood
Leukemia Risk at 4 mG , Microwave News, Vol. 20, No. 5, pp.1, 11-13, Sept/Oct
2000.
6)
Maisch D, Rapley B. Powerline Frequency Electromagnetic Fields and Human Health - Is it the
time to
end
further research?,
ACNEM Journal, Vol. 17, No.1 pp. 5-16, June 1998.
7)
McLauchlin JR. A survey of possible health hazards from exposure to
microwave radiation , Hughes Air
craft corp. Culver City, Ca. 1953.
8)
Hecht K, Balzer HU. Biological Effects of Electromagnetic Fields on Humans in the Frequency
Range 0 to 3
GHz: Summary and results of a study of Russian medical literature from 1960
- 1996
, Berlin 1997.
9)
International Commission on Non-Ionizing Radiation Protection. Health
Issues Related to the use of hand-held
Radiotelephones
and Base Transmitters.
June 1995.
10)
Letter from George Carlo, head WTR to Michael Armstrong, CEO of AT&T
Corp. & October 1999.
11)
Mega-Lawyer Peter Angelos Joins
Mobile Phone-Cancer Fray. Microwave News, Vol. 20, No. 5, pp.1, Nov/Dec 2000.
12)
Repacholi, M.H., Basten, A., Gebski, V., Noonan, D., Finnie, J.H.,
Harris, A.W. Lymphomas in Eu-Pim1
Transgenic Mice Exposed to Pulsed 900 MHz Electromagnetic Fields. Radiation
Research, Vol.147, pp.631-640, 1997.
13)
Wang, B.M. and Lai, H. Acute exposure to pulsed 2450-MHz microwaves affects water maze learning
in the
rat.
Bioelectromagnetics 21:52-56,
2000.
14)
Lai, H., Horita, A. and Guy, A.W. Microwave irradiation affects radial-arm maze performance in
the rat.
Bioelectromagnetics 15:95-104,
1994.
15)Lai,
H. and Singh, N.P. Acute low-intensity microwave exposure increases DNA single-strand breaks
in rat brain cells. Bioelectromagnetics,
Vol.16 pp: 207-210, 1995.
16)Lai,
H. and Singh, N.P. DNA
Single- and double-strand DNA breaks in rat brain cells after acute exposure
to low-level radiofrequency electromagnetic radiation.
Int. J. Radiat. Biol., Vol. 69, pp:
513-521, 1996.
17)Lai,
H. and Singh, N.P. Melatonin
and a spin-trap compound blocked radiofrequency radiation-induced
DNA strand breaks in rat brain cells.
Bioelectromagnetics, Vol.
18, pp: 446-454, 1997.
18)Lai,
H., Carino, M.A., and Singh, N.P. Naltrexone
blocked RFR-induced DNA double strand breaks in
rat brain cells.
Wireless Networks Journal, Vol. 3, pp: 471-476, 1997.
19)
Persson, B.R.R., Salford, L.G., Brun, A. Blood-brain
barrier permeability in rats exposed to electromagnetic
fields used in wireless communication.
Wireless Network, Vol.3, pp: 455-461, 1997.
20)
Schirmacher, A., Winters, S., Fischer, S. et al. Electromagnetic fields (1.8 GHz) increase the permeability
to sucrose of the blood-brain barrier in vitro.
Bioelectromagnetics Vol.21, No.5,
21)
Canada Health Agency: Need for Cell
Phone-Drug Reaction Data. Microwave News, Vol.19,
22)
Lebedeva, N.N., Sulimov, A.V. et al. Cellular
phone electromagnetic field effects on bioelectric
23)
Khudnitskii, S.S., Moshkarev, E.A., Fomenko, T.V. On the evaluation of the influence of cellular
24)
Preece,A.W., et al. Effect of a 915
MHz simulated mobile phone signal on cognitive function in
25)U.K.
Study: Mobile Phones Can make the Brain Work Faster .
Microwave News. Vol.19, No.2,
26)
Huber, R., Graf, T., et al. Exposure
to pulsed high-frequency electromagnetic field during waking
27)
Hocking, B. Preliminary report: symptoms
associated with mobile phone use.
Occup Med (Lond),
28)
Szmigielski, S. Cancer morbidity in
subjects occupationally exposed to high frequency
29)
Cherry, N. Criticism of the Proposal to Adopt ICNIRP Guidelines for Cellsites
in New Zealand
& Australia: Radio Frequency & Microwave Radiation 100kHz -
300 GHz. pp: 109-112, April 2000.
30)
Stang, A., Anastassiou, G. et al. The
possible role of radio frequency radiation in the development
of uveal melanoma.
Epidemiology, Vol. 12, pp: 7-12, Jan. 2001.
31)
Jolly, C., Morimoto, R.I. Journal
of the National Cancer Institute, Vol. 92, pp: 1564-761, Oct. 2000.
32)
De Pomerai, D.I., et al. Effects of stress-inducing microwave radiation on
life-cycle parameters in the nematode
Caenorrabditis elegans. Presented at the 20th Annual meeting of the
Bioelectromagnetics Society, St. Pete Beach,
33)
Independent Expert Group on Mobile Phones. Mobile Phones and Health,
pp: 121, 28 April 2000
34)
German Academy of Pediatrics: Keep Kids Away from Phones. Microwave News,
Vol. 21, No. 1, pp:5, Jan/Feb 2001.
35)
Kolodynski, A.A.., Kolodynska, V.V. Motor and psychological functions of school
children living in the area of the
Skrunda Radio Location Station in Latvia.
The Science of the Total Environment. Vol. 180, pp: 87-93, 1996.
36)
Kearney, S. "Kids phone usage fears", the Sunday Tasmanian. March
18, 2001.