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Raising
The Alarm - Concerns Linger About Electromagnetic Fields
Environmental Magazine
Journalist: Becky Gillette
December, 2001
"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 five 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,
says 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,” says 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 State of 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.
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. Dr. Constantine Maletskos,
a consultant for NCRP, says the status of the report in mid 2001 is still about
the same as in 1995.
"There was a big hullabaloo about potential recommendations," says
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, says 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 says 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 says.
“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) says 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 says. He adds 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 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,” says Adey.
Adey says 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 says. 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,” says Adey.
Keep Your Distance
Peter Frech, executive director of Citizens Concerned About EMFs, says 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 says residents should lobby their local government and
utility companies to place the lines underground to block a higher level of
radiation waves. Ashley suggests that people avoid strong electric fields
whenever possible.
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