Letters
to the Editor (TV)
DEET
and Halloween (November 2003)
Your
DEET Advice (October 2003)
DEET and Halloween
To: News 14 Carolina (North Carolina) contact14@news14.com
Sent: Wednesday, November 26, 2003 11:37 AM
Subject: DEET
and Halloween
Dear Mr. Brett Tackett, Web Staff & Editors,
I would like to draw
your attention to a very important issue that was neglected in Mr. Tackett's
online story and the story aired during the week of Halloween. Although
we understand that the Health Dept. was recommending parents to spray
DEET on their children’s Halloween costumes, your story neglected
to mention (1) the importance of keeping the DEET dosage in the product
low (10% or less) for children and (2) to read and follow the label on
the product. As an important news agency, it is vital that you report
the news responsibly and give the whole story.
DEET (N,N-diethyl-meta-toluamide) is a toxic chemical and must be treated as
one. It is regulated by the Environmental Protection Agency (EPA), who
recently made the label stricter in an effort to warn people of its toxicity
and hazards. (See below for Toxicology on DEET.) Children are particularly
vulnerable to the effects of DEET, which is a neurotoxin. EPA requires
that child safety claims be removed from all end-use product labels, as
they are misleading and irreconcilable with the intended use and pesticidal
ingredients of DEET products. Following are excerpts from the EPA's warning
label requirements of how DEET should be used:
Do not apply
to hands or near eyes and mouth of young children.
Do not use under clothing.
Do not apply over cuts, wounds, or irritated skin.
Avoid over-application of this product.
After returning indoors, wash treated skin with soap and water.
Wash treated clothing before wearing it again.
If you can imagine
all the scenarios that people may use insect repellents - on themselves
and their kids (who notoriously wipe their hands on their clothing and
put their hands in their mouth – ESPECIALLY DURING HALLOWEEN), it
is not difficult to imagine people failing to heed these warnings - if
they even read them. Especially if using a product like Off which contains
up to 100% DEET (vs. the doctor recommended 30%), reapplication, medications,
and putting clothing on over the product within 13 hours of use can cause
heightened levels of toxicity in the human system.
Most likely you will
be reporting on insect repellents again. We respectfully ask that you
give the public all the information – including the use of natural
alternatives like Bite Blocker, Skin-so-Soft, or Herbal Armour or others
with active ingredients made from the oils of soybean, geranium, coconut,
eucalyptus, peppermint, or from citronella or IR3535, or Ethyl-Butylacetylamino-propionate,
a biopesticide popular in Europe that is chemically similar to the naturally
occurring amino acid alanine. Though not generally promoted, these non-toxic
alternatives have been shown to work just as well as DEET, though they
must be reapplied more often.
Please inform your
readers that DEET is not a benign chemical. Several cases of DEET poisonings
have been reported by the EPA, including at least three fatalities. Doctors
recommend using products that contain no more than 30 percent DEET for
adults. DEET should not be used on infants or children. In 1998, EPA made
it illegal for any product containing DEET to make child safety claims.
Products containing more then 30% DEET are banned in Canada. Andrew Spielman,
a professor of tropical medicine at the Harvard School of Public Health
notes there have been seven reports of seizures in small children who
were exposed to excessive doses of DEET. Spielman also noted that product
labeling typically provides little guidance for users. "It's terribly
important that there be some way for the consumer to understand how much
of the material should be applied" and how often, he said.
Sincerely,
Eileen Gunn
Special Projects
Director
Beyond Pesticides/National
Coalition
Against the
Misuse of Pesticides
Toxicology on
DEET
- Several cases of
young children developing toxic encephalopathy (severe brain involvement)
have been associated with the use of DEET, including one death, following
repeated exposure to 10% DEET. The toxic encephalopathy was characterized
by agitation, weakness, disorientation, ataxia, seizures, coma and death
(NYDOH, 1991).
- Animal experiments
indicate that DEET crosses the placenta, and that it is found in the
placenta and fetus and in rats three months after birth. (NIH, 1990)
- Duke Medical University
pharmacologist Mohamed Abou-Donia, Ph.D. conducted numerous studies
in rats, two of them published in 2001, which clearly demonstrate that
frequent and prolonged applications of DEET cause neurons to die in
regions of the brain that control muscle movement, learning, memory
and concentration. Animals treated with an average human dose of DEET
(40 mg/kg body weight) performed far worse than their counterparts when
challenged with physical tasks requiring muscle control, strength and
coordination - effects consistent with physical symptoms in humans reported
in the medical literature, especially by Persian Gulf War veterans.
- With heavy exposure
to DEET and other insecticides, humans may experience memory loss, headache,
weak-ness, fatigue, muscle and joint pain, tremors and shortness of
breath. (Duke, 2002)
- Adverse human effects,
including skin hypersensitivity and eye irritations, have been reported.
- DEET is absorbed
quickly through intact skin; 48% of the applied dose is to-tally absorbed
within six hours. Accumulation on skin has been demonstrated. (NIH,
1990) Dermal application of insect repellents containing DEET can produce
a variety of skin reactions in humans. Cases of localized skin irritation,
large painful blisters, and permanent scarring of the skin at the crease
of the elbow has been reported in soldiers who applied solutions of
50 to 75 percent DEET.
- Results from surveys
of Everglades National Park employees indicate a variety of dermal reactions,
including rashes, irritation of skin and mucous membranes, and numb
or burning sensations of the lips among park workers who were highly
exposed to DEET-containing repellents. Field trials of a 60% DEET formulation
on 600 lumbermen resulted in cases of contact dermatitis, conjunctivitis,
and aggravation of pre-existing acne conditions.
- Several cases of
young children developing toxic encephalopathy (severe brain involvement)
have been associated with the use of DEET, including one death, following
repeated exposure to 10% DEET. The toxic encephalopathy was characterized
by agitation, weakness, disorientation, ataxia, siezures, coma and death.
(NYDOH, 1991)
News 14 Response
Wednesday, November 26, 2003 2:11 PM
Thank you for your email. We always appreciate hearing from visitors to
our website. I will forward your information to our reporters and news
writers so they may take it into consideration the next time we report
on a similar story. Thank you for writing and thank you for visiting news14.com.
Rick Willis, News
Director
News 14 Carolina
2505 Atlantic Avenue Suite 102
Raleigh, NC 27604
(919) 882-4020 rick.willis@news14.com
Your DEET Advice
To: NBC4 TV (Southern
California) lanews@nbc4.tv
Sent: Tuesday,
October 28, 2003 1:00 PM
Subject: Your DEET advice - WNv issues
Dear Editors and Writers of NBC4 TV,
I read with great
concern your recent story titled: "Keeping
The Bugs Away". The subheading "Some Tips DEET Repellents
Found Most Effective" is completely misleading as you point out in
your own story:"A product called Bite Blocker is made from soybeans,
geranium oil and coconut oil and has been shown to work as well as DEET
and for just as long." And there are others beside Bite Blocker as
well - two of which you mentioned.
What is disappointing
is not just the misleading headline, but the fact that you never once
mention the extensive warnings about DEET (N,N-diethyl-meta-toluamide)
as a toxic chemical, which it is, or allude at all to the lengthy warnings
and use instructions mandated to be placed on products containing DEET
by the EPA. (Thankfully, you do however provide a link on how to use it
safely.) EPA requires that child safety claims be removed from all end-use
product labels, as they are misleading and irreconcilable with the intended
use and pesticidal ingredients of DEET products. Following are excerpts
from the EPA's description of how DEET should be used.
Do not apply
over cuts, wounds, or irritated skin.
Do not apply to hands or near eyes and mouth of young children.
Do not use under clothing.
Avoid over-application of this product.
After returning indoors, wash treated skin with soap and water.
Wash treated clothing before wearing it again.
If you can imagine
all the scenarios that people may use insect repellents - on themselves
and their kids (who notoriously put their hands in their mouth), it is
not difficult to imagine people failing to heed these warnings - if they
even read them. Especially if using a product like Off which contains
up to 100% DEET (vs. the recommended 30%), reapplication, medications,
and putting clothing on over the product within 13 hours of use can cause
heightened levels of toxicity in the human system.
As a national membership
organization concerned about the use, misuse, and overuse of pesticides,
we advocate that people avoid products containing DEET especially when
choosing a product for children or when using it in combination with other
chemicals or medications. There are an abundance of alternatives, many
of which are not tested in major comparisons by consumer groups. Regardless,
as your article mentioned - there are effective alternatives, and even
if they need to be reapplied more often they are not toxic and therefore
do not pose as many hazards.
Please tell your readers
that several cases of DEET poisonings have been reported by the EPA, including
at least three fatalities. Doctors recommend using products that contain
no more than 30 percent DEET for adults. DEET should not be used on infants
or children. In 1998, EPA made it illegal for any product containing DEET
to make child safety claims. The Canadian Government recently banned products
containing more then 30% DEET. Lastly, a new study by Duke University
researchers found that combined exposure to DEET and permethrin, a mosquitocides
commonly used in government mosquito control programs, can lead to motor
deficits and learning and memory dysfunction.
Please feel free to
contact me should you have any questions or desire further information
or references. Below please find additional information that may shed
some more light on this issue.
Sincerely,
Eileen Gunn
Special Projects
Director
Beyond Pesticides/National
Coalition
Against the
Misuse of Pesticides
NBC4 TV Response
10/28/03 4:35
PM
Hello, thanks
for your comments. We'll review the article in question.
Thanks for visiting NBC4.tv.
Laura Bobendrier
Health - Money Editor
Internet Broadcasting Systems
http://www.ibsys.com
TOXICOLOGY
ON DEET
* For more information
and references see DEET
ChemWatch or contact Beyond
Pesticides.
