Here on earth, snails as well as lobsters, crabs and many (all?) of their
land based arachnid brethren all employ copper in their blood as oxygen getter
but the blood is blue tinted.
Joe
In a message dated 5/7/2008 3:00:48 A.M. Pacific Daylight Time,
[log in to unmask] writes:
Dewey,
Actually, Spock himself would likely be banned since Vulcan blood
chemistry is based on Cu, instead of Fe, like ours ... hence the green
color.
Try as hard as I may, I can not come up with a suitable Deweyism this
early in the day.
Live long and prosper - Earthling
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey
(EHCOE)
Sent: Tuesday, May 06, 2008 2:55 PM
To: [log in to unmask]
Subject: Re: [TN] Will copper be on the next EU banned material list?
I think that's just spoculation on your part and I think they would
allow them based on their warped views of reality.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Graham Collins
Sent: Tuesday, May 06, 2008 11:48 AM
To: [log in to unmask]
Subject: Re: [TN] Will copper be on the next EU banned material list?
The StarTrek test. If it doesn't look like something they'd use on
StarTrek, it's banned.
Of course, the guys on the Enterprise had their own issues - those pesky
warp drives... I don't think the EU would allow them.
regards,
- Graham
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Mike Buetow
Sent: Tuesday, May 06, 2008 3:42 PM
To: [log in to unmask]
Subject: Re: [TN] Will copper be on the next EU banned material list?
I will be curious to see how products are tested for illegal substances
once all the known metals are effectively banned.
Mike Buetow
Editor in Chief
Circuits Assembly
w/m 617-327-4702
Virtual-PCB -- the industry's first virtual trade show:
www.virtual-pcb.com
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Joe Fjelstad
Sent: Tuesday, May 06, 2008 2:26 PM
To: [log in to unmask]
Subject: [TN] Will copper be on the next EU banned material list?
Some fresh news from the EU Commission below
There is no argument that "uncontrolled recycling" can be hazardous
just as drunk driving can be hazardous. And how can one be against the
protection of children.
The key is education and education is thus vital. The parents are
working to feed their families. With the knowledge of the potential for
harm them might cause by poor work habits, they will make as many of
the right decisions as they are capable of.
What is a bit alarming is that the author(s?) following sentence:
"Of these metals, high levels of lead and copper were the greatest
cause for concern"
then going on to talk about lead issues leaving apparent guilt by
association for copper.
The there are a number of other troubling aspects to the article such
as the use if "could be" rather than something more definite and the
citing sweeping transdermal metal toxicity which is the first time I
have seen that in print.
The item might well have been sub-titled: "Be afraid... be very afraid"
targeted not only at the recycler but also at the electronics
manufacturer.
And so it goes...
Joe
Uncontrolled electronic waste recycling threat to children's health
Source: _European Commission, Environment DG_
(http://www.environmental-expert.com/STSE_resultEach.aspx?cid=8819&idpro
ducttype=1&idmainpage=0&level=0)
Published May 5, 2008
Current EU policy on Waste Electrical and Electronic Equipment (WEEE)
highlights the need for greater recycling of electrical and electronic
equipment to limit the total quantity of waste going to landfill.
However, research carried out in China suggests that if recycling is
not carried out safely then there is a significant risk to human health
and the environment. The researchers from Hong Kong studied Guiyu, a
village in southeast China which has a significant electronic circuit
board recycling industry.
Villagers melt solder from the circuit boards and sort electrical
components, which they sell to electrical appliance factories. Circuit
boards contain many toxic metals. The researchers tested dust from the
recycling workshops, and also from the nearby road, food market and
schoolyard. They found high levels of dangerous heavy metals which would
have an impact on the health of the recycling workers and would pose a
high risk to children.
The researchers tested for the metals cadmium, cobalt, chromium, copper,
nickel, lead and zinc. These metals can cause both acute and long-term
toxicity.
Of these metals, high levels of lead and copper were the greatest cause
for concern. High lead levels are associated with lower IQ in children.
Other research has shown that both workers and children in Guiyu have a
high incidence of bone disease, as well as digestive, neurological and
respiratory problems, which may be linked to metal toxicity.
A risk assessment indicated that recycling workers could be exposed to
50 times the safe oral lead dose. Workers transport the metals into
their homes from the workshop as dust, transferring the dust to their
children. In a separate study, children of circuit board workers were
found to have higher levels of lead in their blood than those whose
parents recycled plastics. The metals get into the body through the
skin or when dust is inadvertently eaten or breathed in. The health
risk to children at all locations around the village was around eight
times greater than that to adults.
Few studies to date have determined the extent of the problems caused by
uncontrolled electronic waste recycling. Similar waste is commonly
recycled in African countries as well as India and Vietnam. Awareness of
the consequences of uncontrolled recycling could prevent some of the
same mistakes being repeated in these countries. The amount of WEEE
generated in the European Community is growing rapidly and Policy
makers would like to see more WEEE recycling.
The EU WEEE directive seeks to encourage safe recycling, addressing
issues such as managing the risks of handling hazardous components,
which as this case study shows, can cause concerns if recycling is not
carried out safely.
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