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#346 - Detoxifying Dioxin And Everything Else, 14-Jul-1993

Keith Schneider has struck again. Schneider, a reporter for the NEW
YORK TIMES, has recently made himself famous by single-handedly
creating a false new nontoxic image for the powerful poison, dioxin.
Schneider has spent a couple of years improving dioxin's public image,
and during that time he has overlooked or ignored the work of hundreds
of scientists who have been studying dioxin with great care, many of
whom have discovered previously-unknown toxic effects of dioxin on
wildlife, laboratory animals, and humans--effects produced by
astonishingly small exposures. Five years ago, dioxin was known chiefly
for its breathtaking power to cause cancer in rats, mice, hamsters and
guinea pigs. None of that has changed. But today dioxin is implicated
in human cancers as well, and in diabetes, reduced sperm count in men,
and in birth defects. Dioxin is now known to mimic, or interfere with,
sex hormones, and thus to disrupt sexual differentiation and
development in fish, birds, and mammals, most likely including humans.
[1] As a result, bad news about dioxin is continuing to accumulate.

But not according to Keith Schneider. In August, 1991, Schneider
asserted that exposure to dioxin "is now considered by some experts to
be no more risky than spending a week in the sun." He did not name any
experts. Schneider's ability to detoxify dioxin regardless of the
scientific evidence earned him a featured place in a long article in
the June issue of AMERICAN JOURNALISM REVIEW, called "See No Evil," in
which it is revealed that no scientist ever told Schneider dioxin was
as safe as sunshine--he and his editors at the TIMES simply made it up.
[2] "We wanted to have a big splash with it [the dioxin story],"
Schneider told author Vicki Monks. "We felt that the media coverage of
this environmental issue needed to be reassessed. We need to be a lot
smarter because not everything is a disaster," Schneider said.

Recently Schneider has broadened his horizons. He's now working to
detoxify all industrial chemicals. In a recent article in a new
industrial/environmental magazine called ECO, Schneider argues as
follows:[3]

(a) Because of fear and panic spread by the environmental movement for
20 years, the U.S. is now spending $140 billion per year "making sure
that toxic chemicals are not present at levels exceeding a few parts
per billion....";

(b) This money is being wasted because it has not reduced the cancer
rate in the U.S. Besides, there is no need for such programs because
"there is no cancer epidemic," Schneider asserts.

(c) However, this "evidence" (as Schneider calls it) does not stop
environmental leaders from "painting many chemical compounds as
potential causes of cancer." Why do they do this? To attract donations,
of course.

Even if we ignore the tortured logic of this argument,[4] Schneider
seems not to have a grasp of basic cancer facts. He says flatly,
"According to federal health studies, the incidence of cancer in most
age groups has been steady over the past two decades." This is simply
not true. It is not even close to true.

During the past 35 years (the period of time for which the National
Cancer Institute has data), the incidence of colon cancer has increased
24 percent; larynx cancer has increased 57 percent; cancer of the
testicles has increased 97 percent; bladder cancer has increased 52
percent; childhood cancer (all types) has increased 28 percent; skin
cancer has increased 283 percent; lung cancers have increased 257
percent; lymphomas have increased 153 percent; kidney cancer had
increased 101 percent; prostate cancer has increased 97 percent; breast
cancer has increased 58 percent. Taken together, the incidence of all
types of cancer has increased 42 percent during the period. Omitting
lung cancer, the incidence of all other cancers has increased 27
percent during the period.[5]

The incidence of all cancers besides lung cancer, taken together, is
increasing at about 0.8 percent each year, year after year. These are
age-adjusted figures, so they are not affected by the aging trend in
the American population. The incidence of cancer is increasing
steadily, relentlessly and, for those who are stricken by it,
devastatingly. Often, when life-saving treatment is available, it is
painful, disfiguring, protracted, and exceedingly costly.

What causes cancer according to Schneider? "High-fat, high-calorie
diets, smokin, [sic] and drinking alcohol are the major sources of
cancer," he says.

Smokin does cause cancer, lots of it. And it represents a stunning
failure of public policy--tobacco companies have been getting away with
murder for years. Alcohol is clearly implicated in cancer, too, though
the cause-and-effect relationship is not straightforward, as we shall
see.

Do high calorie diets cause cancer? They cause body fat, but do they
cause cancer? Not that we have heard.

And does fat in the diet cause cancer? Among scientists, the popularity
of this theory is waning.

No cancer is being studied more aggressively than cancer of the female
breast. This is true because thousands of angry woman have banded
together and pressed effectively to break loose $200 million in federal
funds to study the causes of breast cancer. And what is being learned?

Fascinating new reports in SCIENCE NEWS and SCIENCE describe a dozen
pathbreaking research initiatives.[6] The '80s theory that dietary fat
causes breast cancer is defunct.

Many lines of research are pointing toward one causal factor: dozens of
different technologies that increase exposure of women to estrogen and
estrogen-like chemicals in the environment. Some chemicals in the
environment mimic estrogen: the pesticides DDT, heptachlor, and
atrazine, for example, and some products of combustion--some polycyclic
aromatic hydrocarbons (PAHs), for example; and some industrial
chemicals such as PCBs (polychlorinated biphenyls), BPA (bis-phenyl-A,
found in polycarbonate plastics), and nonylphenol (found in polystyrene
plastics) all mimic estrogens.

Then there are the chemicals that affect the way the human body
metabolizes (breaks down) naturally occurring estrogens, such as
estradiol: paradoxically, dioxin, cigarette smoke, and indole-3-
carbinol (found in cabbage and broccoli), all seem to have a desirable
effect on estradiol metabolism; alcohol, and the combustion product
benz [a]pyrene have a negative effect. None of these effects are well-
understood, but they need to be.

Strong light at night, and magnetic fields, can both increase the
estrogen levels in a woman's blood stream. They both seem to affect the
pineal gland in the center of the brain. The pineal gland produces the
hormone melatonin which seems to fight breast cancer by reducing
estrogen levels in the blood. Alcohol raises estrogen levels in the
blood of premenopausal women, perhaps by diminishing melatonin.

The point is that scientists do not know what causes 60 to 70 percent
of all breast cancers. They do know there is an epidemic of breast
cancer occurring and that chemical contamination from many sources--
pesticides, automobile exhausts, industrial solvents, plastics,
incinerator emissions--all seem to contribute.

Logic says that human exposure to a mixture of thousands of poorly-
understood, biologically-active chemicals seems certain, sooner or
later, to take a toll on us. Prudence and common-sense precaution
demand MORE control of chemicals, not LESS.

Since the mid-19th century, the corporation has replaced the church as
the dominant social organization of our time. In the past 50 years,
this trend has given rise to technologies that are increasingly at odds
with human health and sustainability. The conflict between
sustainability and corporate-driven behavior (and the technologies such
behaviors produce) is becoming more obvious to a growing number of
people each passing day. A talented writer like Keith Schneider could
help a troubled nation think through these difficult issues if he would
but deny himself the pleasure of answers that are satisfyingly simple
but wrong.

Schneider has been a star reporter since his material first began
appearing in the TIMES in January, 1988, and deservedly so. But his
work on chemicals this past year seems destined to end his career as a
serious writer. If this keeps up, he will find himself parked in a
flack job as "vice-president for corporate communications" at some
major chemical conglomerate in Delaware or Missouri or Michigan.

Indeed, perhaps that is the point.

--Peter Montague

=====

[1] Theo Colborn and Coralie Clement, CHEMICALLY-INDUCED ALTERATIONS IN
SEXUAL AND FUNCTIONAL DEVELOPMENT: THE WILDLIFE/HUMAN CONNECTION
(Princeton, N.J.: Princeton Scientific Publishing Co., 1992).

[2] Vicki Monks, "See No Evil," AMERICAN JOURNALISM REVIEW (June 1993),
pgs. 18-25.

[3] Keith Schneider, "A policy that set the world standard goes off the
track," ECO (June 1993), pgs. 17-22.

[4] Schneider implies that government programs have succeeded in
"making sure that toxic chemicals are not present at levels exceeding a
few parts per billion" and yet the cancer rate has remained steady.
Wrong on two counts: the levels of toxins in most compartments of the
environment are far above "a few parts per billion" and, as noted in
the text above, the incidence of cancer is continuously rising.

The body of every American carries a burden of toxic chemicals that far
exceeds "a few parts per billion." Women's breast milk contains many
toxins at levels that exceed a few parts per billion. Most of the
fruits and vegetables we eat every day, and most of the meats, contain
toxins at levels that exceed "a few parts per billion."

[5] Lynn A. Gloeckler Ries and others, editors. CANCER STATISTICS
REVIEW 1973-1987 [National Institutes of Health Publication No. 90-
2789]. Bethesda, MD: National Cancer Institute, 1990, Table I-3, pg. I.
[41].

[6] Eliot Marshall, "Search for a Killer: Focus Shifts From Fats to
Hormones," SCIENCE Vol. 259 (January 29, 1993), pgs. 618-621. See also,
Eliot Marshall, "The Politics of Breast Cancer," SCIENCE Vol. 259
(January 29, 1993), pgs. 616-617. And see Janet Raloff, "EcoCancers,"
SCIENCE NEWS Vol. 144 (July 3, 1993), pgs. 10-13.

Descriptor terms: keith schneider; new york times; dioxin; studies;
toxicity; laboratory animals; wildlife; human health; diabetes; reduced
sperm count; reproductive toxicity; reproductive toxicology; sexual
differentiation; developmental disorders; sexual development; breast
cancer; cancer, causes; carcinogens; estrogen; sex hormones;
xenoestrogens; pesticides; ddt; heptachlor; atrazine; pahs; pcbs; bis-
phenyl-a; nonylphenol; polystyrene; polycarbonate plastics; plastics;
estradiol; cigarettes; tobacco; indole-3-carbinol; broccoli; alcohol;
pineal gland; melatonin; magnetic fields; magnetism;