Eric Hansen on tue 29 mar 11
Ricer: et al: (1) Lead content in the glaze per se is not a health
concern. We all have been eating off it all our lives. What is a
concern is if lead is present in the food served in the lead-glazed
wares. (2) If the wares were properly formulated, and containing
fritted lead, fired properly, not only are they safe but they are
legal almost everywhere except California (- and nothing is actually
legal in that state - they make everything illegal there so they can
exercise favoritism and bias in their enforcement. - sorry different
rant). (3) The science in the study is flawed, as is the reporting.
- h a n s e n -
On Tue, Mar 29, 2011 at 1:54 PM, Rice Martin wrote:
> Interesting and frightening article.
>
> Martin
>
> http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=
=3Dhealthupdateema2
>
--
Eric Alan Hansen
Stonehouse Studio Pottery
Alexandria, Virginia
americanpotter.blogspot.com
thesuddenschool.blogspot.com
hansencookbook.blogspot.com
"Simplify, simplify, simplify" - Thoreau
Fredrick Paget on tue 29 mar 11
I expect that the decals are the culprit. Many of the pigments in low
fire silk screened decals are fritted with lead. That kind of decal
should never be used on food contact surfaces.
Some of the Chinese decals are high fire and applied underglaze. They
should test ok .
Fred
Twin Dragon Studio
Mill Valley, CA, USA
>On Tue, Mar 29, 2011 at 1:54 PM, Rice Martin wrote:
>
>> Interesting and frightening article.
>>
>> Martin
>>
>>
>>
>>http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=
=3Dhealthupdateema2
>>
>
>But not really all that surprising. I hate that the author didn't feel the
>need to clarify that this was not the case with hand made ceramics that ar=
e
>produced here in the States.
>
>--
>Randall in Atlanta
>http://wrandallmoody.com
--
Eva Gallagher on tue 29 mar 11
I have also wondered about products from China, especially decals. Our son
is a geologist and uses a portable X-ray fluorescence (XRF) "gun" in the
field to identify minerals. You just place the end of the gun in contact
with the sample and it spits out all elements in contact to a depth of
slightly less than 1 mm. and with higher atomic weights than beryllium,
giving you counts down to parts per million. Sounds like science fiction bu=
t
its not!
I was curious about some mugs that I had made for him using some copper fro=
m
a rock that I had ground up. Arsenic is often associated with copper and
other heavy metals like cobalt.
Anyway he did a bunch of samples - mugs from Mexico, from various
superstores amd my mugs. Did the inside, outside and any decals,
decorations. Happily my mugs passed, showing elevated Zn, Sn which were in
the glaze and then some Fe and Cu which were used as colorants in some part=
s
of the cup. Also just traces of lead - 30 ppm.
However the commercial mugs - several showed lots of zirconium, zinc, lead
which one would expect and surprisingly arsenic. I am presuming the arsenic
was in the decals or the decorations. Also lots of Cu, Co, Fe - probably in
the decals/decorations. Unfortunately my son did not include locations or
what part of each mug that went with what data or where the mugs were
manufactured. However it does show that XRF is an easy way to see what is i=
n
a glaze in terms of heavy metals. Perhaps I could also do a leaching test,
then dip in a filter paper, let it dry and send it to my son for analysis.
Regards,
Eva Gallagher
Deep River, Ontario
http://newfoundoutpotter.blogspot.com/
http://www.valleyartisans.com/gallagher/Gallagher.htm
----- Original Message -----
From: "Randall Moody"
To:
Sent: Tuesday, March 29, 2011 2:34 PM
Subject: Re: Lead Contamination Found in Ceramic Pottery - NYTimes.com
> On Tue, Mar 29, 2011 at 1:54 PM, Rice Martin wrote:
>
>> Interesting and frightening article.
>>
>> Martin
>>
>>
>> http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=
=3Dhealthupdateema2
>>
>
> But not really all that surprising. I ate that the author didn't feel the
> need to clarify that this was not the case with hand made ceramics that
> are
> produced here in the States.
>
> --
> Randall in Atlanta
> http://wrandallmoody.com
>
>
pdp1 on tue 29 mar 11
Hi Martin,
Good to know and to be aprised of.
In other words, not much has changed.
I bel;ieve in 'Comsumer Rights' - which is to say, I believe in people
looking out for themselves as much as possible.
This gets complicated, and fast, too, but, I for one have not felt satisfie=
d
with how well government bureaucracies have managed to look out for people,
where so often they betray the premis to favor lobby-ists and promises of
remuneraitons in various guises to compromise or contradict their charter,
so, this leaves us somewhere worse than where we would have been anyway, if
looking out for ourselves by out own lights.
I can think of no area where this is not so, and, where this is not getting
worse every day.
New laws have passed, which will make the sale of Incandescent Light Bulbs
illegal, and which favor the Mercury based whirled tube sort of Light Bulbs
which tend to all come from communist red china.
If a person breaks one of these Bulbs, it may also be a crime if one does
NOT call 'Hazmat' to clean it up.
It is all becoming more and more insane.
Oh well...
Phil
L v
----- Original Message -----
From: "Rice Martin"
> Interesting and frightening article.
>
> Martin
>
> http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=
=3Dhealthupdateema2
Sue Cline on tue 29 mar 11
Yes, interesting. In a lead awareness program in our city there is a poster=
that tells parents/people to avoid several things, including "old paint," =
and handmade ceramics.
I have written several letters about this, so far to no avail, but hope to =
get my guild in on it.
Sue Cline
-----Original Message-----
>From: Randall Moody
>Sent: Mar 29, 2011 2:34 PM
>To: Clayart@LSV.CERAMICS.ORG
>Subject: Re: Lead Contamination Found in Ceramic Pottery - NYTimes.com
>
>On Tue, Mar 29, 2011 at 1:54 PM, Rice Martin wrote:
>
>> Interesting and frightening article.
>>
>> Martin
>>
>>
>> http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=
=3Dhealthupdateema2
>>
>
>But not really all that surprising. I ate that the author didn't feel the
>need to clarify that this was not the case with hand made ceramics that ar=
e
>produced here in the States.
>
>--
>Randall in Atlanta
>http://wrandallmoody.com
Rice Martin on tue 29 mar 11
Interesting and frightening article.
Martin
http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=3D=
healthupdateema2
Randall Moody on tue 29 mar 11
On Tue, Mar 29, 2011 at 1:54 PM, Rice Martin wrote:
> Interesting and frightening article.
>
> Martin
>
>
> http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=
=3Dhealthupdateema2
>
But not really all that surprising. I ate that the author didn't feel the
need to clarify that this was not the case with hand made ceramics that are
produced here in the States.
--
Randall in Atlanta
http://wrandallmoody.com
Taylor Hendrix on wed 30 mar 11
There is nothing in the article that would point to a flawed study
(the article was clear about the Dr.'s credentials--he was not
reported to be a research scientist), and the article was just fine.
The headline may have been misleading especially to those with chips
on shoulders, but the article itself had all the pertinent facts of
the matter.
Taylor, in Rockport TX
wirerabbit1 on Skype (-0600 UTC)
http://wirerabbit.blogspot.com
http://wirerabbitpots.blogspot.com
http://www.flickr.com/photos/wirerabbit/
On Tue, Mar 29, 2011 at 6:35 PM, Eric Hansen
wrote:
.... (3) The science in the study is flawed, as is the reporting.
>
> - h a n s e n -
>
...
Edouard Bastarache on wed 30 mar 11
Eric,
in California even the governor is illegal.
"Treves de plaisanteries", indeed lead can be used safely in pottery.
Gis,
Edouard Bastarache
Spertesperantisto
Sorel-Tracy
Quebec
http://www.flickr.com/photos/30058682@N00/
http://edouardbastarache.blogspot.com/
http://www.facebook.com/edouard.bastarache
http://blogsalbertbastarache.blogspot.com/
----- Original Message -----
From: "Eric Hansen"
To:
Sent: Tuesday, March 29, 2011 7:35 PM
Subject: Re: Lead Contamination Found in Ceramic Pottery - NYTimes.com
> Ricer: et al: (1) Lead content in the glaze per se is not a health
> concern. We all have been eating off it all our lives. What is a
> concern is if lead is present in the food served in the lead-glazed
> wares. (2) If the wares were properly formulated, and containing
> fritted lead, fired properly, not only are they safe but they are
> legal almost everywhere except California (- and nothing is actually
> legal in that state - they make everything illegal there so they can
> exercise favoritism and bias in their enforcement. - sorry different
> rant). (3) The science in the study is flawed, as is the reporting.
>
> - h a n s e n -
>
>
> On Tue, Mar 29, 2011 at 1:54 PM, Rice Martin wrote:
>> Interesting and frightening article.
>>
>> Martin
>>
>> http://www.nytimes.com/2011/03/29/health/29ceramics.html?nl=3Dhealth&emc=
=3Dhealthupdateema2
>>
>
>
>
> --
> Eric Alan Hansen
> Stonehouse Studio Pottery
> Alexandria, Virginia
> americanpotter.blogspot.com
> thesuddenschool.blogspot.com
> hansencookbook.blogspot.com
> "Simplify, simplify, simplify" - Thoreau
>
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