George Koller on mon 14 jul 03
attention mud-hatters,
back a couple of years ago i went down my list of metal sulfate "salts" =
that I could afford to acquire. cadmium was one i
eventually i found an affordable source for. some very peculiar =
shipping regulations were attached to the substance from some=20
sources, but with the web i eventually found a source that could ship it =
without the federal agent and whatever - but it was=20
shipped in a bottle packed in foam in a metal cannister - more clues =
that this stuff is exceptionally dangerous.=20
i have never opened, scares me too much.
cadmium has been recognized for bone diseases and a cause for cancer. =
now i just ran across a report that other terrible things
happen in smaller doses than previously believed. i won't trust my =
translation of technical german but will summerize what i understand
and include the original (german) article below.
i wonder if cadmium is present in some common clays, enough to be a =
serious health concern for people that work around kilns?
this particular metal seems particularly nasty, especially for women.... =
=20
best,
george koller
sturgeon bay, wi - door county
where we are having another beatiful day with a perfect light breeze off =
the water. =20
Kadmium imitiert weibliches Hormon
Das f=FCr Batterien und eine Reihe industrieller Prozesse ben=F6tigte =
Schwermetall Kadmium ist offenbar noch sch=E4dlicher als bisher =
angenommen. US-Mediziner wiesen im Tierversuch nach, dass Kadmium schon =
in geringen Dosen den Effekt des Hormons =D6strogen imitiert und sich =
sch=E4dlich auf alle weiblichen Sexualorgane auswirkt.=20
New York - Bisher war nur bekannt, dass die Nieren unter chronischer =
Kadmiumeinwirkung leiden und dass das Schwermetall Knochenkrankheiten =
und Krebs verursachen kann.=20
Jetzt erg=E4nzt das Team um Mary Beth Martin vom Lombardi =
Krebsforschungszentrum der Georgetown Universit=E4t in Washington die =
Liste der Gesundheitsrisiken. In der Onlineausgabe des Fachjournals =
"Nature Medicine" schreibt das Team, dass Ratten bei einer relativ =
niedrig dosierten Einwirkung von Kadmium Ver=E4nderungen an der =
Geb=E4rmutter, deren Schleimhaut (Endometrium) sowie an den Dr=FCsen der =
Brust zeigten. Au=DFerdem setzte die Pubert=E4t bei den weiblichen =
Tieren fr=FCher ein.=20
Diese Ergebnisse seien ein klarer Beweis daf=FCr, dass Kadmium die =
=D6strogen-Rezeptoren im ganzen K=F6rper beeinflusst. Der gleiche Effekt =
war schon durch andere Schwermetalle, darunter auch Nickel, nachgewiesen =
worden. =DCberrascht stellten die Forscher fest, dass die =
Ver=E4nderungen bereits bei Dosen von f=FCnf bis zehn Mikrogramm pro =
Kilo K=F6rpergewicht auftraten. Dagegen h=E4lt die =
Weltgesundheitsorganisation (WHO) in Genf Kadmium nach ihrer =
Toleranztabelle erst von sieben Mikrogramm pro Woche f=FCr riskant.=20
=20
Vivianne Escolar.C. on mon 14 jul 03
Translation from Mac Sherlock
Cadmium imitates female hormone=20
The heavy metal cadmium needed for batteries and a number of
industrieller of processes is obviously still more harmful than so far
assumed. The US medical profession proved in the bioassay that cadmium
already imitates in small doses the effect of the hormone Oestrogen
and harmful all female Sexualorgane affects. New York - so far it was
only well-known that the kidneys under chronic cadmium effect to
suffer and that the heavy metal bone diseases and cancer can cause.=20
Now the team completes the list of the health risks around Mary Beth
Martin of the Lombardi cancer research center of the Georgetown
university in Washington. In the on-line output of the drawer journal
"Nature Medicine" the team writes the fact that rats during a
relatively low proportioned effect of cadmium modifications in the
gebaermutter whose mucous membrane (Endometrium) as well as at the
glands of the chest showed. Additionally puberty began with the female
animals in former times.=20
These results are a clear proof for the fact that cadmium influences
the Oestrogen receptors in the whole body. The same effect had been
proven already by other heavy metals, under it also nickel. Surprised
the researchers stated that the modifications already occurred with
doses from five to ten micro gram per Kilo body weight. On the other
hand the World Health Organization (WHO) in Geneva cadmium holds
according to its tolerance table only from seven micro gram per week
for risky
=20
>Kadmium imitiert weibliches Hormon
>=20
> Das f=FCr Batterien und eine Reihe industrieller Prozesse ben=F6tigte
> Schwermetall Kadmium ist offenbar noch sch=E4dlicher als bisher angenom=
men.
> US-Mediziner wiesen im Tierversuch nach, dass Kadmium schon in geringen=
Dosen
> den Effekt des Hormons =D6strogen imitiert und sich sch=E4dlich auf all=
e
> weiblichen Sexualorgane auswirkt.=20
> New York - Bisher war nur bekannt, dass die Nieren unter chronischer
> Kadmiumeinwirkung leiden und dass das Schwermetall Knochenkrankheiten u=
nd
> Krebs verursachen kann.=20
>=20
> Jetzt erg=E4nzt das Team um Mary Beth Martin vom Lombardi
> Krebsforschungszentrum der Georgetown Universit=E4t in Washington die L=
iste der
> Gesundheitsrisiken. In der Onlineausgabe des Fachjournals "Nature Medic=
ine"
> schreibt das Team, dass Ratten bei einer relativ niedrig dosierten Einw=
irkung
> von Kadmium Ver=E4nderungen an der Geb=E4rmutter, deren Schleimhaut (En=
dometrium)
> sowie an den Dr=FCsen der Brust zeigten. Au=DFerdem setzte die Pubert=E4=
t bei den
> weiblichen Tieren fr=FCher ein.=20
>=20
> Diese Ergebnisse seien ein klarer Beweis daf=FCr, dass Kadmium die
> =D6strogen-Rezeptoren im ganzen K=F6rper beeinflusst. Der gleiche Effek=
t war
> schon durch andere Schwermetalle, darunter auch Nickel, nachgewiesen wo=
rden.
> =DCberrascht stellten die Forscher fest, dass die Ver=E4nderungen berei=
ts bei
> Dosen von f=FCnf bis zehn Mikrogramm pro Kilo K=F6rpergewicht auftraten=
. Dagegen
> h=E4lt die Weltgesundheitsorganisation (WHO) in Genf Kadmium nach ihrer
> Toleranztabelle erst von sieben Mikrogramm pro Woche f=FCr riskant.=20
>=20
>=20
> =20
>=20
>=20
_________________________________________________________________________=
_____
> Send postings to clayart@lsv.ceramics.org
>=20
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>=20
> Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
>=20
-------------------------------------------------
MetroMail - Sistema de Correo Web de Metrotel Internet!
http://www.metrotel.net.co/
Marianne Lombardo on mon 14 jul 03
Well, I sincerely hope it isn't, having just finished chemo for cancer
myself. I'm already suspicious enough of various things in our environment
and food. In the clay? That would be scary.
Ron Roy? Is there any cadmium in the Tucker's clays?
Marianne
Omemee, Ontario, Canada
claybair on tue 15 jul 03
Great.... I used to push Cadmium red & yellow oil paint
around the canvas with my fingers!!!!
Gayle Bair
Bainbridge Island, WA
http://claybair.com
-----Original Message-----
From: George Koller
attention mud-hatters,
back a couple of years ago i went down my list of metal sulfate "salts" that
I could afford to acquire. cadmium was one i
eventually i found an affordable source for. some very peculiar shipping
regulations were attached to the substance from some
sources, but with the web i eventually found a source that could ship it
without the federal agent and whatever - but it was
shipped in a bottle packed in foam in a metal cannister - more clues that
this stuff is exceptionally dangerous.
i have never opened, scares me too much.
cadmium has been recognized for bone diseases and a cause for cancer. now i
just ran across a report that other terrible things
happen in smaller doses than previously believed. i won't trust my
translation of technical german but will summerize what i understand
and include the original (german) article below.
i wonder if cadmium is present in some common clays, enough to be a serious
health concern for people that work around kilns?
this particular metal seems particularly nasty, especially for women....
best,
george koller
sturgeon bay, wi - door county
Ron Roy on wed 16 jul 03
Hi Marianne,
There are all kinds of trace elements in all clays - they are not reported
because our laws say they don't have to be if only in small amounts. Just
as well I suppose because it would be very scary.
It is a good reason to properly vent our kilns - it is not possible to
overvent but it certainly is possible to undervent.
When I fire I have a kiln vent going and a window open (not much point in
venting if you don't have replacement air coming in) and I can still feel
the effects of fumes when I walk into my studio where my electric kiln is.
RR
>Well, I sincerely hope it isn't, having just finished chemo for cancer
>myself. I'm already suspicious enough of various things in our environment
>and food. In the clay? That would be scary.
>
>Ron Roy? Is there any cadmium in the Tucker's clays?
>
>Marianne
>Omemee, Ontario, Canada
>
>>>
>
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
| |
|