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Concerns linger about electromagnetic fields
The real title of this article should perhaps be "Concerns about
electromagnetic fields continue to sell newspapers." There is a good
rebuttal in ENN's Forum Discussion Area. Regarding the statements about
burying transmission lines to reduce exposures--I didn't think that
earth blocked EMFs very effectively. Wouldn't walking over lines buried
5 feet deep give more exposure than walking under lines 20 feet
overhead? Correct me if I'm wrong.
Susan Gawarecki
Concerns linger about electromagnetic fields
http://enn.com/news/enn-stories/2002/04/04182002/s_46496.asp
By Becky Gillette, E/The Environmental Magazine
Thursday, April 18, 2002
"Generating comfort" is the slogan of one of the nation's largest
utility
companies. But the electric and magnetic fields (EMFs) emitted from
power lines and electrical appliances may also generate a host of health
problems, including miscarriage, cancer, and Lou Gehrig's disease.
Concern about health effects from EMFs first arose in 1979, when a
study found that children who lived in close proximity to certain types
of
electrical lines had a higher risk of leukemia. However, the electric
power industry and some U.S. governmental agencies have claimed that
research reveals little reason for concern about EMFs.
So why has there been so much effort to suppress the release of
government-funded studies on the subject? Recently a draft of a $7
million report on EMFs from the California Department of Health
Services (DHS) was made public only after the California First
Amendment Coalition filed a lawsuit seeking release of the information.
The DHS report says it is more than 50 percent possible that EMFs could
cause a very small increased lifetime risk of childhood leukemia, adult
brain cancer, and Lou Gehrig's disease. The report says it is 10 to 50
percent possible that EMFs could be responsible for a small increased
lifetime risk of male breast cancer, childhood brain cancer, suicide,
Alzheimer's disease, and sudden cardiac death. The report also says it
is more than 50 percent possible that EMFs could cause a 5 to 10
percent added risk of miscarriage.
"If true, this would clearly be of concern to individuals and
regulators,"
says the report. But after evaluating each health problem linked to
EMFs, it adds, "There is a chance that EMFs have no effect at all." It
is
hard to see why it took a First Amendment lawsuit to force release of a
report with such wishy-washy conclusions. But there are a lot of details
in the 309-page report important to those concerned about EMFs.
LOCATION, LOCATION
Joan Tukey, founder of the California Alliance for Utility Safety and
Education, said the report proves that it's foolish to locate
high-voltage
power lines next to schools. "Lines next to schools are significant
because this is an involuntary exposure," said Tukey. "There are other
sources of high EMFs, such as your microwave or your electric clock next
to your bed. But you don't need to stand in front of the microwave, and
you can move the clock to the other side of the room."
Tukey says the California has a plan to bury new power transmission
lines and take other steps that can shield people from EMFs, but
utilities have consistently weakened implementation. "I think we need
to take a hard look at doing statewide mitigation to reduce exposure
from power lines," said Tukey.
The DHS report isn't the first time EMF findings were delayed. An even
more substantial study conducted by the National Council on Radiation
Protection and Measurements (NCRP) in 1995 has not yet been released
by mid-2001. Dr. Constantine Maletskos, a consultant for NCRP, said
the status of the report is still about the same as in 1995. "There was
a
big hullabaloo about potential recommendations," said Maletskos. "We
want to get the research report published irrespective of
recommendations. But it may just die, which is too bad because that
report contains more information than has ever been discussed by
anyone else."
The NCRP report, written by 11 leading experts and leaked to the public
in 1995, says the public health recommendations, if accepted, could
force "complex and costly" changes in the electric power industry. The
chairman of the study committee, Dr. Ross Adey, a clinical
neurophysiologist and professor of physiology at Loma Linda School of
Medicine in California, said there is significant scientific evidence
that
suggests even very low exposure to EMFs has subtle, long-term effects
on human health. Adey says the NCRP report, squashed by industry
"stakeholders," recommends no new high voltage power lines should be
built near existing housing developments or schools. The report also
recommends that levels in homes should be less than two milligauss.
Some European government regulatory agencies have concluded that
there is an increased risk of childhood leukemia and possibly adult
leukemia from exposure to EMFs. That conclusion flies in the face of the
latest study released by the U.S. National Institute of Environmental
Health Services (NIEHS), which says evidence of a risk of cancer and
other human diseases from EMFs around power lines is "weak." Adey
said NIEHS convened an international body of scientists, then rejected
its conclusions after it said the risk was real. "The NIEHS falsified
that
report to say there was no risk," Adey said. "That is one of the most
fraudulent things the government has perpetrated on the health of this
country."
>From his own research, J. Robert Ashley (an electrical engineer
experienced in both the academic and industrial sectors) said more work
is needed to measure people's exposure to electrical fields. "The
electrical field is 10 to 20 times more likely to explain the link
between…power lines and childhood cancers than is the magnetic field,"
Ashley said. He added that many investigators have compromised their
studies by not separating the electric and magnetic components of
EMFs.
CELLULAR STATIC
Concern is also being expressed about microwave and radio frequency
fields from sources such as cellular phones, cellular phone towers, and
television stations. Adey said the cell phone industry has tried to
suppress any findings that indicate concern for health effects. Adey
isn't
convinced by studies that find no evidence of adverse health effects
from cell phone use. "We and others who have spent 30 years
researching the biological spectrum from cells to people have no doubt
that there is the possibility of harm from these interactions," said
Adey.
Adey said the most recent work done by the Swedish government shows
a dose-dependent relationship between cell phone use and cancer. The
longer cell phones are used, the greater the risk of cancer. "The
results
are being squashed by the cell phone industry," Adey said. The safety
of cell phone use is being investigated by NIEHS, the same agency
charged with fudging the EMF data. "We as scientists do not trust
NIEHS to conduct this study of cell phone safety based on its record,"
said Adey.
KEEP YOUR DISTANCE
Peter Frech, executive director of Citizens Concerned About EMFs, said
the strength of EMFs from appliances usually drops rapidly within
several feet. Keeping a safe distance (three to five feet) from
appliances, computers, and monitors can minimize exposure.
Frech recommends avoiding voluntary exposure to products like electric
blankets, waterbed heaters, and alarm clocks. He believes involuntary
exposure from overhead power lines, particularly transmission and
distribution lines, is of greater concern. He says proximity to overhead
power lines should be considered when purchasing a home. In the case
of existing homes located close to overhead power lines, Frech said
residents should lobby their local government and utility companies to
place the lines underground to block a higher level of radiation waves.
Ashley suggested that people avoid strong electric fields whenever
possible.
Becky Gillette is a Mississippi-based freelance writer.
--
.....................................................
Susan L. Gawarecki, Ph.D., Executive Director
Oak Ridge Reservation Local Oversight Committee
We've moved! Please note our new address:
102 Robertsville Road, Suite B, Oak Ridge, TN 37830
.....................................................
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