[Pharmwaste] RE: Pharmwaste digest, Vol 1 #165 - 4 msgs

Andria Ventura aventura at cleanwater.org
Tue Nov 1 22:25:23 EST 2005


This article is esp. timely since the San Francisco Bay Regional Water
Quality Control Board is proposing a TMDL (clean up plan) for pesticide
toxicity in the area's urban creeks.  While my organization and others have
problems with the plan on a number of levels, we do applaud their focus on
pesticide toxicity as a whole since their original impairment listing was
for diazinon alone.  The rise of pyrethroids demonstrates why such a limited
focus is inappropriate.

-----Original Message-----
From: pharmwaste-admin at lists.dep.state.fl.us
[mailto:pharmwaste-admin at lists.dep.state.fl.us]On Behalf Of
pharmwaste-request at lists.dep.state.fl.us
Sent: Monday, October 31, 2005 7:03 AM
To: pharmwaste at lists.dep.state.fl.us
Subject: Pharmwaste digest, Vol 1 #165 - 4 msgs


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Today's Topics:

   1. Popular Insecticide Detected In Suburban Stream Beds (Tenace, Laurie)
   2. Re: Popular Insecticide Detected In Suburban Stream
       Beds (Kelly Moran)
   3. RE: Popular Insecticide Detected In Suburban Stream Beds (Heil, Ann)

--__--__--

Message: 1
Date: Mon, 31 Oct 2005 10:08:18 -0500
From: "Tenace, Laurie" <Laurie.Tenace at dep.state.fl.us>
To: <pharmwaste at lists.dep.state.fl.us>
Subject: [Pharmwaste] Popular Insecticide Detected In Suburban Stream Beds

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For those of you not just looking at pharmaceuticals - pyrethroids are =
touted
as "less harmful" - but this study implies that is no guarantee of =
safety in
the environment.

=20

Happy Halloween!

Laurie

=20

Laurie J. Tenace

Environmental Specialist

Florida Department of Environmental Protection

2600 Blair Stone Road, MS 4555

Tallahassee, Florida 32399-2400

PH: (850) 245-8759

FAX: (850) 245-8811

Laurie.Tenace at dep.state.fl.us

=20

view our mercury web pages at:=20

http://www.dep.state.fl.us/waste/categories/mercury/default.htm

=20

=20

=20

Popular Insecticide Detected In Suburban Stream Beds

Researchers announced they have detected high concentrations of a =
popular
insecticide in suburban stream sediments, raising concerns about its =
effects
on aquatic life.

Pyrethroids, the active ingredient used in most home and garden =
insecticides,
have been on the market for years. Although the compounds are considered
potentially less harmful to humans than other insecticides, surprisingly
little information is available about their long-term impact on the
environment, according to Donald Weston, Ph.D., an adjunct professor of
ecotoxicology at the University of California, Berkeley.

The finding, by Weston and others, was published online Oct. 19 by the
American Chemical Society's journal, Environmental Science & Technology. =
A
print version of the article is scheduled to appear in the journal's =
Dec. 1
issue.

Nearly all of the sediment samples Weston and his colleagues gathered =
from
streams bordering a Roseville, Calif., neighborhood (a suburb of =
Sacramento)
contained enough pyrethroids to eradicate a small bottom-dwelling =
crustacean
called Hyalella azteca.

"These results indicate that monitoring for pyrethroids in urban and =
suburban
streams is overdue, and the public, regulators, and the scientific =
community
should give greater consideration to the potential effects of =
residential use
of pyrethroids on aquatic systems," Weston and his colleagues conclude.

American Chemical Society: http://www.chemistry.org

Donald Weston:
http://ib.berkeley.edu/research/interests/research_profile.php?person=3D3=
39

=20

=20


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<body lang=3DEN-US link=3Dblue vlink=3Dpurple>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>For those of you not just looking =
at
pharmaceuticals &#8211; pyrethroids are touted as &#8220;less =
harmful&#8221; &#8211;
but this study implies that is no guarantee of safety in the =
environment.</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Happy Halloween!</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Laurie</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<div>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Laurie J. Tenace</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Environmental =
Specialist</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Florida Department of Environmental
Protection</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
  10.0pt;font-family:Arial;color:navy'>2600</span></font><font size=3D2
 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
 color:navy'> Blair Stone Road, MS</span></font><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> =
4555</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
  10.0pt;font-family:Arial;color:navy'>Tallahassee</span></font><font =
size=3D2
 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
 color:navy'>, Florida 32399-2400</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>PH: (850) =
245-8759</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>FAX: (850) =
245-8811</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><a
href=3D"mailto:Laurie.Tenace at dep.state.fl.us">Laurie.Tenace at dep.state.fl.=
us</a></span></font></p>

<p class=3DMsoNormal><font size=3D4 color=3Dnavy face=3D"Times New =
Roman"><span
style=3D'font-size:14.0pt;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>view our mercury web pages at: =
</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><a
href=3D"http://www.dep.state.fl.us/waste/categories/mercury/default.htm">=
http://www.dep.state.fl.us/waste/categories/mercury/default.htm</a></span=
></font></p>

<p class=3DMsoNormal><font size=3D4 color=3Dnavy face=3D"Times New =
Roman"><span
style=3D'font-size:14.0pt;color:navy'>&nbsp;</span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D4 color=3Dnavy face=3D"Times New =
Roman"><span
style=3D'font-size:14.0pt;color:navy'>&nbsp;</span></font></p>

</div>

<p class=3DMsoNormal><font size=3D4 face=3D"Times New Roman"><span =
style=3D'font-size:
14.0pt'>&nbsp;</span></font></p>

<p><b><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt;font-weight:bold'>Popular Insecticide Detected In Suburban Stream =
Beds</span></font></b></p>

<p><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>Researchers
announced they have detected high concentrations of a popular =
insecticide in
suburban stream sediments, raising concerns about its effects on aquatic =
life.</span></font></p>

<p><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>Pyrethroids,
the active ingredient used in most home and garden insecticides, have =
been on
the market for years. Although the compounds are considered potentially =
less
harmful to humans than other insecticides, surprisingly little =
information is
available about their long-term impact on the environment, according to =
Donald
Weston, Ph.D., an adjunct professor of ecotoxicology at the University =
of California, Berkeley.</span></font></p>

<p><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>The
finding, by Weston and others, was published online Oct. 19 by the =
American
Chemical Society's journal, <i><span =
style=3D'font-style:italic'>Environmental
Science &amp; Technology</span></i>. A print version of the article is
scheduled to appear in the journal's Dec. 1 issue.</span></font></p>

<p><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>Nearly
all of the sediment samples Weston and his colleagues gathered from =
streams
bordering a Roseville, Calif., neighborhood (a suburb of Sacramento) =
contained
enough pyrethroids to eradicate a small bottom-dwelling crustacean =
called
Hyalella azteca.</span></font></p>

<p><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&quot;These
results indicate that monitoring for pyrethroids in urban and suburban =
streams
is overdue, and the public, regulators, and the scientific community =
should
give greater consideration to the potential effects of residential use =
of
pyrethroids on aquatic systems,&quot; Weston and his colleagues =
conclude.</span></font></p>

<p><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>American
Chemical Society: <a href=3D"http://www.chemistry.org" =
target=3DNEW>http://www.chemistry.org</a></span></font></p>

<p><font size=3D3 color=3Dblack face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>Donald
Weston: <a
href=3D"%20http://ib.berkeley.edu/research/interests/research_profile.php=
?person=3D339"
target=3DNEW>http://ib.berkeley.edu/research/interests/research_profile.p=
hp?person=3D339</a></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D4 face=3D"Times New Roman"><span =
style=3D'font-size:
14.0pt'>&nbsp;</span></font></p>

</div>

</body>

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--__--__--

Message: 2
Date: Mon, 31 Oct 2005 07:25:12 -0800
From: Kelly Moran <kmoran at tdcenvironmental.com>
To: pharmwaste at lists.dep.state.fl.us
Subject: Re: [Pharmwaste] Popular Insecticide Detected In Suburban Stream
 Beds


--------------070302050805020205090200
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All,
I used to say that pyrethroids were safer for people--even though I was
predicting environmental harm from their increased use.  But I was
wrong.  The EPA risk assessment for the pyrethroid permethrin recently
came out.  EPA says that permethrin is classified as "likely to be
carcinogenic to humans."

Kelly Moran
TDC Environmental

Tenace, Laurie wrote:

> For those of you not just looking at pharmaceuticals - pyrethroids are
> touted as "less harmful" - but this study implies that is no guarantee
> of safety in the environment.
>
>
>
> Happy Halloween!
>
> Laurie
>
>
>
> Laurie J. Tenace
>
> Environmental Specialist
>
> Florida Department of Environmental Protection
>
> 2600 Blair Stone Road, MS 4555
>
> Tallahassee, Florida 32399-2400
>
> PH: (850) 245-8759
>
> FAX: (850) 245-8811
>
> Laurie.Tenace at dep.state.fl.us <mailto:Laurie.Tenace at dep.state.fl.us>
>
>
>
> view our mercury web pages at:
>
> http://www.dep.state.fl.us/waste/categories/mercury/default.htm
>
>
>
>
>
>
>
> Popular Insecticide Detected In Suburban Stream Beds
>
> Researchers announced they have detected high concentrations of a
> popular insecticide in suburban stream sediments, raising concerns
> about its effects on aquatic life.
>
> Pyrethroids, the active ingredient used in most home and garden
> insecticides, have been on the market for years. Although the
> compounds are considered potentially less harmful to humans than other
> insecticides, surprisingly little information is available about their
> long-term impact on the environment, according to Donald Weston,
> Ph.D., an adjunct professor of ecotoxicology at the University of
> California, Berkeley.
>
> The finding, by Weston and others, was published online Oct. 19 by the
> American Chemical Society's journal, Environmental Science &
> Technology. A print version of the article is scheduled to appear in
> the journal's Dec. 1 issue.
>
> Nearly all of the sediment samples Weston and his colleagues gathered
> from streams bordering a Roseville, Calif., neighborhood (a suburb of
> Sacramento) contained enough pyrethroids to eradicate a small
> bottom-dwelling crustacean called Hyalella azteca.
>
> "These results indicate that monitoring for pyrethroids in urban and
> suburban streams is overdue, and the public, regulators, and the
> scientific community should give greater consideration to the
> potential effects of residential use of pyrethroids on aquatic
> systems," Weston and his colleagues conclude.
>
> American Chemical Society: http://www.chemistry.org
>
> Donald Weston:
> http://ib.berkeley.edu/research/interests/research_profile.php?person=339
>
<%20http://ib.berkeley.edu/research/interests/research_profile.php?person=33
9>
>
>
>
>
>


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</head>
<body>
All,<br>
I used to say that pyrethroids were safer for people--even though I was
predicting
environmental harm from their increased use. &nbsp;But I was wrong.
&nbsp;The EPA risk
assessment for the pyrethroid permethrin recently came out. &nbsp;EPA says
that
permethrin is classified as &#8220;likely to be carcinogenic to
humans.&#8221; <br>
<br>
Kelly Moran<br>
TDC Environmental<br>
<br>
Tenace, Laurie wrote:<br>
<blockquote type="cite"

cite="midF3B05BF073E51740B024E311F9AAC73F010D20AB at tlhexsmb4.floridadep.net">

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  <div class="Section1">
  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">For those of you
not just looking at pharmaceuticals &#8211; pyrethroids are touted as
&#8220;less harmful&#8221;
&#8211; but this study implies that is no guarantee of safety in the
environment.</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color:
navy;">&nbsp;</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">Happy
Halloween!</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color:
navy;">Laurie</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color:
navy;">&nbsp;</span></font></p>

  <div>
  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">Laurie J.
Tenace</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">Environmental
Specialist</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">Florida
Department
of Environmental Protection</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color:
navy;">2600</span></font><font
 size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;"> Blair Stone
Road,
MS</span></font><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">
4555</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color:
navy;">Tallahassee</span></font><font
 size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">, Florida
32399-2400</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">PH: (850)
245-8759</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">FAX: (850)
245-8811</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;"><a

href="mailto:Laurie.Tenace at dep.state.fl.us">Laurie.Tenace at dep.state.fl.us</a
></span></font></p>

  <p class="MsoNormal"><font size="4" color="navy"
 face="Times New Roman"><span style="font-size: 14pt; color:
navy;">&nbsp;</span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;">view our mercury
web pages at: </span></font></p>

  <p class="MsoNormal"><font size="2" color="navy" face="Arial"><span
 style="font-size: 10pt; font-family: Arial; color: navy;"><a

href="http://www.dep.state.fl.us/waste/categories/mercury/default.htm">http:
//www.dep.state.fl.us/waste/categories/mercury/default.htm</a></span></font>
</p>

  <p class="MsoNormal"><font size="4" color="navy"
 face="Times New Roman"><span style="font-size: 14pt; color:
navy;">&nbsp;</span></font></p>
  </div>

  <div>
  <p class="MsoNormal"><font size="4" color="navy"
 face="Times New Roman"><span style="font-size: 14pt; color:
navy;">&nbsp;</span></font></p>
  </div>

  <p class="MsoNormal"><font size="4" face="Times New Roman"><span
 style="font-size: 14pt;">&nbsp;</span></font></p>

  <p><b><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt; font-weight: bold;">Popular Insecticide Detected
In Suburban Stream Beds</span></font></b></p>

  <p><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt;">Researchers announced they have detected high
concentrations
of a popular insecticide in suburban stream sediments, raising concerns
about
its effects on aquatic life.</span></font></p>

  <p><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt;">Pyrethroids, the active ingredient used in most
home and garden insecticides, have been on the market for years. Although
the compounds are considered potentially less harmful to humans than other
insecticides, surprisingly little information is available about their
long-term
impact on the environment, according to Donald Weston, Ph.D., an adjunct
professor of ecotoxicology at the University of California,
Berkeley.</span></font></p>

  <p><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt;">The finding, by Weston and others, was published
online Oct. 19 by the American Chemical Society's journal, <i><span
 style="font-style: italic;">Environmental Science &amp;
Technology</span></i>.
A print version of the article is scheduled to appear in the journal's Dec.
1 issue.</span></font></p>

  <p><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt;">Nearly all of the sediment samples Weston and his
colleagues gathered from streams bordering a Roseville, Calif., neighborhood
(a suburb of Sacramento) contained enough pyrethroids to eradicate a small
bottom-dwelling crustacean called Hyalella azteca.</span></font></p>

  <p><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt;">"These results indicate that monitoring for
pyrethroids
in urban and suburban streams is overdue, and the public, regulators, and
the scientific community should give greater consideration to the potential
effects of residential use of pyrethroids on aquatic systems," Weston and
his colleagues conclude.</span></font></p>

  <p><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt;">American Chemical Society: <a
 href="http://www.chemistry.org"
target="NEW">http://www.chemistry.org</a></span></font></p>

  <p><font size="3" color="black" face="Times New Roman"><span
 style="font-size: 12pt;">Donald Weston: <a

href="%20http://ib.berkeley.edu/research/interests/research_profile.php?pers
on=339"

target="NEW">http://ib.berkeley.edu/research/interests/research_profile.php?
person=339</a></span></font></p>

  <p class="MsoNormal"><font size="2" face="Arial"><span
 style="font-size: 10pt; font-family: Arial;">&nbsp;</span></font></p>

  <p class="MsoNormal"><font size="4" face="Times New Roman"><span
 style="font-size: 14pt;">&nbsp;</span></font></p>
  </div>
  </blockquote>
<br>
</body>
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Message: 3
Subject: RE: [Pharmwaste] Popular Insecticide Detected In Suburban Stream
Beds
Date: Mon, 31 Oct 2005 07:40:52 -0800
From: "Heil, Ann" <AHeil at lacsd.org>
To: "Kelly Moran" <kmoran at tdcenvironmental.com>,
	<pharmwaste at lists.dep.state.fl.us>

This is a multi-part message in MIME format.

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For direct application to humans (i.e., for head lice and scabies) =
pyrethroids are definitely safer than lindane. Unfortunately, for =
scabies treatments permethrin is the only alternative to lindane that =
works.  To treat head lice, you don't need to use any of the pesticides =
available - lindane (not available in California), malathion, =
permethrin, or pyrethrin. Use a good metal comb and remove all the lice =
and nits instead. If you feel you must dump chemicals on your child's =
head to treat head lice, look for some of the non-toxic alternatives =
showing up on store shelves.
=20
Ann Heil
LACSD

-----Original Message-----
From: pharmwaste-admin at lists.dep.state.fl.us =
[mailto:pharmwaste-admin at lists.dep.state.fl.us]On Behalf Of Kelly Moran
Sent: Monday, October 31, 2005 7:25 AM
To: pharmwaste at lists.dep.state.fl.us
Subject: Re: [Pharmwaste] Popular Insecticide Detected In Suburban =
Stream Beds


All,
I used to say that pyrethroids were safer for people--even though I was =
predicting environmental harm from their increased use.  But I was =
wrong.  The EPA risk assessment for the pyrethroid permethrin recently =
came out.  EPA says that permethrin is classified as "likely to be =
carcinogenic to humans."=20

Kelly Moran
TDC Environmental

Tenace, Laurie wrote:


For those of you not just looking at pharmaceuticals - pyrethroids are =
touted as "less harmful" - but this study implies that is no guarantee =
of safety in the environment.

=20

Happy Halloween!

Laurie

=20

Laurie J. Tenace

Environmental Specialist

Florida Department of Environmental Protection

2600 Blair Stone Road, MS 4555

Tallahassee, Florida 32399-2400

PH: (850) 245-8759

FAX: (850) 245-8811

Laurie.Tenace at dep.state.fl.us

=20

view our mercury web pages at:=20

http://www.dep.state.fl.us/waste/categories/mercury/default.htm

=20

=20

=20

Popular Insecticide Detected In Suburban Stream Beds

Researchers announced they have detected high concentrations of a =
popular insecticide in suburban stream sediments, raising concerns about =
its effects on aquatic life.

Pyrethroids, the active ingredient used in most home and garden =
insecticides, have been on the market for years. Although the compounds =
are considered potentially less harmful to humans than other =
insecticides, surprisingly little information is available about their =
long-term impact on the environment, according to Donald Weston, Ph.D., =
an adjunct professor of ecotoxicology at the University of California, =
Berkeley.

The finding, by Weston and others, was published online Oct. 19 by the =
American Chemical Society's journal, Environmental Science & Technology. =
A print version of the article is scheduled to appear in the journal's =
Dec. 1 issue.

Nearly all of the sediment samples Weston and his colleagues gathered =
from streams bordering a Roseville, Calif., neighborhood (a suburb of =
Sacramento) contained enough pyrethroids to eradicate a small =
bottom-dwelling crustacean called Hyalella azteca.

"These results indicate that monitoring for pyrethroids in urban and =
suburban streams is overdue, and the public, regulators, and the =
scientific community should give greater consideration to the potential =
effects of residential use of pyrethroids on aquatic systems," Weston =
and his colleagues conclude.

American Chemical Society: http://www.chemistry.org

Donald Weston: =
http://ib.berkeley.edu/research/interests/research_profile.php?person=3D3=
39

=20

=20



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<DIV><SPAN class=3D591343715-31102005><FONT face=3DArial color=3D#0000ff =
size=3D2>For=20
direct application to humans (i.e., for head lice and scabies) =
pyrethroids are=20
definitely safer than lindane. Unfortunately, for scabies treatments =
permethrin=20
is the only alternative to lindane that works.&nbsp; To treat head lice, =
you=20
don't need to use any of the pesticides available - lindane (not =
available in=20
California), malathion, permethrin, or pyrethrin. Use a good metal comb =
and=20
remove all the lice and nits instead. If you feel you must dump =
chemicals on=20
your child's head to treat head lice, look for some of the non-toxic=20
alternatives showing up on store shelves.</FONT></SPAN></DIV>
<DIV><SPAN class=3D591343715-31102005><FONT face=3DArial color=3D#0000ff =

size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D591343715-31102005><FONT face=3DArial color=3D#0000ff =
size=3D2>Ann=20
Heil</FONT></SPAN></DIV>
<DIV><SPAN class=3D591343715-31102005><FONT face=3DArial color=3D#0000ff =

size=3D2>LACSD</FONT></SPAN></DIV>
<BLOCKQUOTE>
  <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
  size=3D2>-----Original Message-----<BR><B>From:</B>=20
  pharmwaste-admin at lists.dep.state.fl.us=20
  [mailto:pharmwaste-admin at lists.dep.state.fl.us]<B>On Behalf Of =
</B>Kelly=20
  Moran<BR><B>Sent:</B> Monday, October 31, 2005 7:25 AM<BR><B>To:</B>=20
  pharmwaste at lists.dep.state.fl.us<BR><B>Subject:</B> Re: [Pharmwaste] =
Popular=20
  Insecticide Detected In Suburban Stream =
Beds<BR><BR></FONT></DIV>All,<BR>I=20
  used to say that pyrethroids were safer for people--even though I was=20
  predicting environmental harm from their increased use. &nbsp;But I =
was wrong.=20
  &nbsp;The EPA risk assessment for the pyrethroid permethrin recently =
came out.=20
  &nbsp;EPA says that permethrin is classified as &#8220;likely to be =
carcinogenic to=20
  humans.&#8221; <BR><BR>Kelly Moran<BR>TDC Environmental<BR><BR>Tenace, =
Laurie=20
  wrote:<BR>
  <BLOCKQUOTE=20
  =
cite=3DmidF3B05BF073E51740B024E311F9AAC73F010D20AB at tlhexsmb4.floridadep.n=
et=20
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</STYLE>

    <DIV class=3DSection1>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">For those =
of you=20
    not just looking at pharmaceuticals &#8211; pyrethroids are touted =
as &#8220;less=20
    harmful&#8221; &#8211; but this study implies that is no guarantee =
of safety in the=20
    environment.</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT>&nbsp;</P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Happy=20
    Halloween!</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Laurie</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"></SPAN></FONT>&nbsp;</P>
    <DIV>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Laurie J. =

    Tenace</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Environmental=20
    Specialist</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Florida =
Department=20
    of Environmental Protection</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">2600</SPAN></FONT><FONT=20
    face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> Blair =
Stone Road,=20
    MS</SPAN></FONT><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">=20
    4555</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Tallahassee</SPAN></FONT><FONT=20
    face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">, Florida =

    32399-2400</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">PH: (850) =

    245-8759</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">FAX: =
(850)=20
    245-8811</SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><A=20
    =
href=3D"mailto:Laurie.Tenace at dep.state.fl.us">Laurie.Tenace at dep.state.fl.=
us</A></SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3D"Times New Roman" color=3Dnavy =
size=3D4><SPAN=20
    style=3D"FONT-SIZE: 14pt; COLOR: navy"></SPAN></FONT>&nbsp;</P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">view our =
mercury=20
    web pages at: </SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><A=20
    =
href=3D"http://www.dep.state.fl.us/waste/categories/mercury/default.htm">=
http://www.dep.state.fl.us/waste/categories/mercury/default.htm</A></SPAN=
></FONT></P>
    <P class=3DMsoNormal><FONT face=3D"Times New Roman" color=3Dnavy =
size=3D4><SPAN=20
    style=3D"FONT-SIZE: 14pt; COLOR: =
navy"></SPAN></FONT>&nbsp;</P></DIV>
    <DIV>
    <P class=3DMsoNormal><FONT face=3D"Times New Roman" color=3Dnavy =
size=3D4><SPAN=20
    style=3D"FONT-SIZE: 14pt; COLOR: =
navy"></SPAN></FONT>&nbsp;</P></DIV>
    <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D4><SPAN=20
    style=3D"FONT-SIZE: 14pt"></SPAN></FONT>&nbsp;</P>
    <P><B><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-WEIGHT: bold; FONT-SIZE: 12pt">Popular Insecticide =
Detected In=20
    Suburban Stream Beds</SPAN></FONT></B></P>
    <P><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt">Researchers announced they have detected =
high=20
    concentrations of a popular insecticide in suburban stream =
sediments,=20
    raising concerns about its effects on aquatic =
life.</SPAN></FONT></P>
    <P><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt">Pyrethroids, the active ingredient used in =
most home=20
    and garden insecticides, have been on the market for years. Although =
the=20
    compounds are considered potentially less harmful to humans than =
other=20
    insecticides, surprisingly little information is available about =
their=20
    long-term impact on the environment, according to Donald Weston, =
Ph.D., an=20
    adjunct professor of ecotoxicology at the University of California,=20
    Berkeley.</SPAN></FONT></P>
    <P><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt">The finding, by Weston and others, was =
published=20
    online Oct. 19 by the American Chemical Society's journal, <I><SPAN=20
    style=3D"FONT-STYLE: italic">Environmental Science &amp;=20
    Technology</SPAN></I>. A print version of the article is scheduled =
to appear=20
    in the journal's Dec. 1 issue.</SPAN></FONT></P>
    <P><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt">Nearly all of the sediment samples Weston =
and his=20
    colleagues gathered from streams bordering a Roseville, Calif., =
neighborhood=20
    (a suburb of Sacramento) contained enough pyrethroids to eradicate a =
small=20
    bottom-dwelling crustacean called Hyalella azteca.</SPAN></FONT></P>
    <P><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt">"These results indicate that monitoring =
for=20
    pyrethroids in urban and suburban streams is overdue, and the =
public,=20
    regulators, and the scientific community should give greater =
consideration=20
    to the potential effects of residential use of pyrethroids on =
aquatic=20
    systems," Weston and his colleagues conclude.</SPAN></FONT></P>
    <P><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt">American Chemical Society: <A=20
    href=3D"http://www.chemistry.org"=20
    target=3DNEW>http://www.chemistry.org</A></SPAN></FONT></P>
    <P><FONT face=3D"Times New Roman" color=3Dblack size=3D3><SPAN=20
    style=3D"FONT-SIZE: 12pt">Donald Weston: <A=20
    =
href=3D"%20http://ib.berkeley.edu/research/interests/research_profile.php=
?person=3D339"=20
    =
target=3DNEW>http://ib.berkeley.edu/research/interests/research_profile.p=
hp?person=3D339</A></SPAN></FONT></P>
    <P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"></SPAN></FONT>&nbsp;</P>
    <P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D4><SPAN=20
    style=3D"FONT-SIZE: =
14pt"></SPAN></FONT>&nbsp;</P></DIV></BLOCKQUOTE><BR></BLOCKQUOTE></BODY>=
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