Lead free electronics as you say Sheri will have no impact.
Interesting stats from Unicef - no break down though as to cause.
For anyone wondering why the US mortality numbers are so high in that chart
compared to say Europe, I believe I can throw some light on it. We are
moving into a house with a pool in a few weeks. I did some research while
looking into a pool fence for visitors children and our two puppies to keep
them out of the pool.
The number one cause of death of children in the US in the age group 0 to 5
years is actually drowning, and over half of those deaths are pool related.
That is a snippet of info for those that scanned the list and did the math!!
John
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Harris, Sheri Elliott
Sent: Friday, July 28, 2006 9:39 AM
To: [log in to unmask]
Subject: Re: [LF] Propoganda or Fact?
More stats - this time from UNICEF -
Over the period 1978 to 1993, the U.S. had an 82% reduction in blood lead
levels (from 15.0 to 2.7 micrograms per deciliter). Much of this progress as
been attributable to the reduction of lead in gasoline.
I've been pounding my fist from the from the beginning that the only true
measure of lead poisoning is blood lead levels - and the institution of lead
free solders will have no measurable impact on blood lead levels worldwide.
for more on the blood lead levels of other countries, see the UNICEF report:
The Progress of Nations 1998 - Industrialized Countries: Progress and
Disparity. United Nations Children's Fund (UNICEF). bottom of page 32.
http://www.unicef.org/pon98/indust4.htm
Happy Weekend -
Sheri
-----Original Message-----
From: Bev Christian [mailto:[log in to unmask]]
Sent: Wednesday, July 26, 2006 4:53 PM
To: [log in to unmask]
Subject: Re: [LF] Propoganda or Fact?
James,
Maybe not the average kid, but I think we might be surprised at what a
significant number of kids did/do ingest, again I am not talking about
lead from electronics. And I did not say that every kid was doing that,
although the comments about metabolism are for all children.
In 1982 the average amount was 1.25 grams of TEL/US gallon, but it was
only 0.1 gram/US gallon in 1986, so they were not breathing much in the
way of lead containing exhaust fumes in the 1988-91 timeframe of NHANES
III.
Bev
RIM
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of James, Chris
Sent: July 26, 2006 5:20 PM
To: [log in to unmask]
Subject: Re: [LF] Propoganda or Fact?
The average American kid does not sit chewing contaminated dirt even in
1988 - they did however breathe escalating levels of exhaust fumes from
leaded petrol, gas guzzling cars. They were breathing it in greater
volumes than their adult counterparts during their early years.
The removal of lead in paint and then lead in petrol have shown the
greatest drop in lead ingestion in populations, for which I once saw
data traced from the 1940's to present.............
I don't think the removal of lead from electronics is going to show any
quantum change in lead levels in the population.................
Regards,
Chris
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Bev Christian
Sent: 26 July 2006 20:41
To: [log in to unmask]
Subject: Re: [LF] Propoganda or Fact?
Joe,
Let me back up my last e-mail with a fact or two from the US Third
National Health and Nutrition Evaluation Survey (N HANES III).
Here is a link to part of it.
http://www.epa.gov/superfund/lead/products/nhanes.pdf
Blood lead levels
0.028 ppm average American, 1988-91, adult
0.041 ppm average American, 1988-91 1- 2 years old
Bev
RIM
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Joe Fjelstad
Sent: July 26, 2006 2:49 PM
To: [log in to unmask]
Subject: Re: [LF] Propoganda or Fact?
Greetings folks,
The timing of this thread is impeccable.
Electronics Business editorial staff realizing that there was another
side
to the RoHS story as July 1 approached and asked for an opinion
relative to
lead-free and I obliged them. The commentary, written a few weeks ago,
published today.
I consider a great many of you, wise, prudent and savvy scientists and
engineers of this forum, to be coauthors for this piece. This comes by
way of the
many thoughts and comments you have made and which both inspired and
became
parts of this brief summary and I herewith thank you all for your
shared
thoughts on this important topic over the last few years.
_http://www.reed-electronics.com/eb-mag/article/CA6355639.html?nid=2961&
rid=15
01882145_
(http://www.reed-electronics.com/eb-mag/article/CA6355639.html?nid=2961&
rid=1501882145)
BTW The editorial staff of EB chose the title for the commentary. It
appears that they understood the message quite well.
Best regards and wishes,
Joe
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