In
the seminal 1967 film The Graduate, baby-faced Dustin Hoffman
was told the wave of the future: "Plastics." The lucrative career tip
slipped on the QT to young Benjamin the day of his graduation bore no
cautionary message about the veritable Pandora's Box the petrochemical
plastics industry had opened in the post-war era some twenty years
before the film's setting. The overzealous Plastic Man knew the only
thing he needed to know: The world would always be hungry for
plastic.
That celluloid prediction has proved
right on target. Cheap, durable and convenient, plastic has been the
country's chosen miracle-material since World War II. When added to
polyvinyl chloride (PVC), the petroleum-based industrial chemicals in
plastic -- chief among them plasticizers such as phthalates (THAHL-ates)
-- make our upholstery comfier and our pipes more flexible. To keep up
with the world's affection for all things plasticized, the U.S.
produces a billion pounds of phthalates a year.
Today, phthalates are one of the top offenders in a group of 70
suspected endocrine disrupting chemicals (EDCs) that we spray in our
homes and yards and use in our makeup, nail polish, detergents, flame
retardants, plastic bottles, metal food cans and even children's toys.
When we're done with these products, we flush them down our sinks or
burn them in our incinerators, where their runoff filters into our
national waterways. Even if you eschew plasticized products in your
personal lives, it's impossible to avoid contamination; EDCs are in
the bodies of every man, woman, child and fetus in the U.S.
A scan of the usual green media suspects turns up a lot of material on
this silent phenomenon. Beyond EDCs, public waterways are contaminated
with growth hormones and antibiotics from cattle feed, residual
hormones from birth control products and other medicines, waste
chemicals and pharmaceuticals. These substances can pass intact into
the water supply through conventional sewage treatment facilities,
dumps and landfills, or wash off into surface water and even percolate
into ground water from animal waste fertilizers contaminated with
traces of such compounds. And yet the subject remains largely under
the public radar.
Pioneer zoologist Theo Colborn began following the chemical trail
early on. In her landmark book, Our Stolen Future (Dutton,
1996; Plume 1997 paperback), Colborn reported countless examples of
reproductive disorders among wildlife -- from sterility in bald eagles
to small genitalia in male alligators. After tracing the animals'
disorders to chemical exposure, Colborn suggested that EDCs profoundly
affect one of the body's main communication networks -- the endocrine
system -- by either mimicking natural hormones or blocking their
uptake to the body's receptor sites.
Short-circuiting hormones can disturb everything from human
development and behavior to reproduction and immunity. And scientists
believe even the tiniest hormone variation at certain critical points
in fetal development can have a profound effect on a child's future
health.
Disturbing public health trends are bearing out these grim theories.
Maida Galvez, M.D., a New York-based pediatrician, often talks to
parents concerned by the accelerated rate of their daughters' sexual
development. "I've seen the onset of breast budding as early as the
age of six," Dr. Galvez says, noting that normal breast development
begins to occur around ages ten to 11.
To date there has been little research in the area of "precocious
puberty," as it's called, but Galvez is currently part of a
multicenter study of 1,200 adolescent girls to determine if exposure
to the hormone disruptor family of phthalates is behind the trend.
A much-publicized 2005 study was the first to show the connection
between phthalate exposure and incomplete genital development. Dr.
Shanna Swan's study, published in Environmental Health Perspectives
(August, 2005), showed that pregnant women with higher urine
concentrations of some phthalates were more likely to give birth to
sons with "phthalate syndrome" -- incomplete male genital development
-- a disorder previously seen only in lab rats. Swan's findings
support the hypothesis that prenatal phthalate exposure to levels
found in the general U.S. population can adversely affect the
reproductive tract in male infants.
Environmental exposure to EDCs is the suspected cause of declining
male testosterone levels over the past two decades, as well as the
declining male birth rates in industrial areas such as Seveso, Italy,
and the Dow Chemical Valley in Sarnia, Ontario.
Last September, Vicki Blazer, a fish pathologist with the U.S.
Geological Survey, found that more than 80 percent of male small mouth
bass in the Potomac were growing eggs. She'd seen the problem a few
years earlier in a pristine area of West Virginia.
Blazer believes the fault may lie with us. "We're all putting things
into the environment. Hopefully people will think twice whether it's
important not to have dandelions in the lawn and dump pharmaceuticals
down the toilet," says Blazer.
The publication of Colborn's Our Stolen Future concerned
Congress enough that it ordered the EPA to create a screening system
for endocrine disruptors. The resulting 1996 Food Quality Protection
Act was the most ambitious toxicology program ever conceived. Yet so
far, the EPA hasn't conducted a single test.
"Clearly they've fallen down on the job," says Erik Olsen, a lawyer
with the Natural Resources Defense Council (NRDC). The EPA, citing
technical difficulties and facing a proposed budget cut, predicts it
will be 2009 before it establishes a testing protocol.
Meanwhile, the agency approves about 700 new chemicals a year, relying
on the manufacturer's assurances for safety.
Facing government inaction, consumers have taken the lead in
protecting themselves from EDC exposure. When the CDC found in 2000
that exposure to the plasticizer dibutyl phthalate (DBP) was more than
20 times greater for women of childbearing age than for the average
person, a consumer group began its detective work.
The
Campaign for Safe Cosmetics tested 72 name-brand beauty
products for industrial chemical ingredients. Their report, "Not Too
Pretty" (2002), found that nearly three quarters of commercial
products contain phthalates, used to keep mascara from running and
polished nails from chipping.
The grassroots consumer action resulting from the report was enough to
pressure OPI (the major supplier of products to nail salons) as well
as manufacturer Sally Hansen into agreeing to reformulate their
products in late 2006.
Avalon Organics, supplier to Whole Foods, jumped onboard, becoming one
of 450 signatories to the Compact for Safe Cosmetics campaign, an
industry pledge to follow the European Union's lead in removing
carcinogens, mutagens (chemicals which mutate the DNA of an organism),
and reproductive toxicants (which adversely effect puberty, behavior
and reproduction) from products, replacing them with safer
alternatives.
Today if you screen the ingredients lists of most body care products
for phthalates you'll find them on nail polish labels, but not in
shampoo and other beauty products, where they are often masked as
"fragrance." Stacy Malkan of
Health
Care Without Harm says that's changed her buying habits. "Now
I won't buy products with fragrance on the label." (For more better
buying habits, see sidebar).
Overwhelmed? Don't be says Gina Solomon of the NRDC. "People freak out
with 85,000 chemicals out there, but in reality it will probably turn
out to be a relative handful that are the real problem we need to deal
with."
In December 2006, San Francisco became the first city in the nation to
answer this charge when it banned baby products containing any level
of BPA (plastic #7) and certain levels of phthalates. San Francisco
officials based the ban on the European Union model that requires
about 30 thousand chemicals be tested prior to their approval.
But single-city bans, while bold, are not going to stem the toxic
tide. "What we need is chemical policy reform from the ground up,"
says Dr. Solomon. As it stands now, most chemicals released in recent
decades are given a blanket assumption of safety. "The innocent-
until-proven-guilty attitude in the U.S. is backwards," she counsels.
As scientists continue to tackle testing our chem-saturated
environment, EDC damage to human health is likely to rank up with
cancer as the environmentally induced medical concern of our time.
Meanwhile, you can take action by pressuring your local officials, and
-- like Benjamin in The Graduate -- reject the plastic world in
favor of the real deal.
Jane Akre is trying to find
sustainable business models for freelance journalism after a 25-year
career in the mainstream media which ended with a whistleblower
lawsuit against Fox,
foxbghsuit.com. First published in February issue of
Conscious Choice.