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Girl finds cancer-causing particles
Girl finds cancer-causing particles
Monday, May 1, 2000
By Associated Press
Claire Nelson was in the seventh grade when the thought
occurred to her: Can cancer-causing particles seep into food
covered with household plastic wrap while it is being
microwaved?
"I thought it would be easy to test," said Nelson, 18, a
freshman at Hendrix College in Conway, Arkansas.
Motivated by her discovery that no one had done extensive
research on plastic wraps before, Nelson decided to study the
effects of radiation on carcinogens. Roughly six years later,
she is receiving international accolades and meeting some of
the most influential people in the scientific field.
Nelson had read that one of several suspected carcinogens -
di(ethylhexyl)adepate, or DEHA — is in many plastic wraps,
and that the Food and Drug Administration had never tested
whether the carcinogen migrated into food being microwaved.
That's when she got her idea.
She microwaved plastic wrap in virgin olive oil, hoping to find
that the carcinogens seeped into the oil. She found that, and
more.
"I tested four different kinds of plastic wraps and I found not just
the carcinogens but also xenoestrogen was migrating, and that
causes low sperm count in men and breast cancer in women,"
Nelson said.
Getting to that point took discipline and determination.
At age 12, Nelson didn't have the resources to undertake her
research, and so set it aside.
"I had the idea, but I didn't start to work on the project until the
10th grade," when the promise of an automatic A in a science
class revived it, she said.
"My teacher said if we made regionals in the science fair that
we would get 10 bonus points. So I asked what we get if we
make states, and she said 30 points. Then I asked what we
get if we make internationals, and she said an automatic A,"
Nelson said.
Without the equipment or facilities to get the job done, she
started making phone calls. Many calls later, she got help from
Jon Wilkes, a scientist at the National Center for Toxicological
Research in Jefferson, southeast of Little Rock.
"Sometimes students who work with us come to us and ask for
help with science projects. In her case it was different," Wilkes
said. "She had already done a fair amount of research and
she had already concluded that nobody had ever studied
plastic wraps."
Nelson, by then a junior at Hall High School, at first had her
mother drive her 25 miles every couple of days from the
family's home in Little Rock to Jefferson. A year later, with her
family moved to Mississippi and she living in an apartment in
Little Rock, Nelson was making the trip by herself and
balancing time between debate team competition and
cheerleading.
Wilkes said it isn't rare for non-scientists to come up with an
idea like Nelson's, but it is rare for them to actually pursue a
way to test their theories. Wilkes and the toxicological
research center, an arm of the FDA, let her run her
experiments using government equipment.
"Sometimes she would be asleep standing up," Wilkes said.
"But she'd be there working — if there was no debate or
basketball game to cheer at."
Her research concluded, Nelson got her A.
"The first year I had specific evidence but not numbers. The
second year I got the numbers," said Nelson, whose family
continues to live in Southaven, Miss., outside Memphis, Tenn.
Her analysis found that DEHA was migrating into the oil at
between 200 parts and 500 parts per million. The FDA
standard is 0.05 parts per billion. Nelson couldn't find any
regulations concerning xenoestrogen, making it difficult to
know how much is too much.
Her findings won her the American Chemical Society's top
science prize for students while she was a junior. Last year,
she was the salutatorian at Hall and placed fourth in the
International Science and Engineering Fair in Fort Worth,
Texas.
Recognition for her research continues as Nelson completes
her freshman year at tiny Hendrix College in Conway. Her
findings were published as a one-paragraph summary in
several science journals, and submitted to others. Nelson also
appeared in an advertisement in the March edition of Discover
magazine, touting the international science fair.
"I went to Washington recently for the largest science
conference in the world and I got to meet Nobel Prize winners
from all over the world," she said.
Still, Nelson isn't sure whether she wants to pursue a career in
science.
"I'm undeclared right now," she said of choosing a major. "I
think I might want to get into broadcast journalism."
In the meantime, she has lined up a summer job at America
Online in New York, using an age-old connection to get her
foot in the door.
"My boyfriend's uncle got me the job," she said.
==========
Glenn A. Carlson, P.E.
glennacarlson@aol.com
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