Subject:  (Fist) (Lundquist) Scientific publications (fwd)
Date:     Sun, 25 Apr 1999 100907 -0500 (CDT)
From:     "Roy L. Beavers" <rbeavers@llion.org>
To:       emfguru <rbeavers@llion.org>
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---------- Forwarded message ----------
Date: Sun, 25 Apr 1999 17:24:07 +1000
From: Stewart Fist 
To: "Roy L. Beavers" 
Subject: Re: (Lundquist) Scientific publications (fwd)

Majorie says:
> While I didn't explicitly say so, I have flown in the face of electrical
> engineers, because they insist that the SAR, all by itself, is a valid measure
> of exposure.

Of course we all know that the SAR is not a "measure" at all, except in
phantom (mock-up plastic, etc) heads.  It is an estimate in live humans, and
that estimate has proven so wrong so many times.

Om Gandhi (who was co-convenor of the 1991 IEEE committee which set exposure
standards) has just released a new paper showing that 800-900 MHz cell phones
have exceeded the 1.6 W/kg per gram-of-tissue limit in SAR. This is outside
the IEEE exposure guideline.

 His older paper in 1995 showed that with 900MHz cellular handsets - SAR
estimates (based on modelling) varied from 0.16 to 0.69Wkg, and for the brain,
from 0.06 to 0.41Wkg

Back in 1986. Gandhi exposed rats to intermitten levels of 2.45GHz at
2.5mW/cm2 and studied the behavioral and physiological effects. At
levels down to 0.7W/kg he observed that " the microwave exposed rats showed a
lower efficiency in the number of lever-presses emitted for the food pellets
delivered."  Note: this is the opposite of Preece's raised reaction times (to
a degree).
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Just to fill this out: Two other experimenters have done estimates also (apart
from Kuster, etc)

Dimbylow and Mann 1994 used a vertical or lateral antenna, and suggested
3-4Wkg averaged over 1gram. Their estimate for the meninges and the surface of
the brain is about 25% of this. [DOES ANYONE HAVE A GOOD ABSTRACT OF THIS]

Excell 1998 says higher values up to 4.2Wkg rising to 8.2Wkg at 1800MHz, based
on MRI. 
[I'D APPRECIATE AN ABSTRACT OF THIS ALSO]

-- 
Stewart Fist - writer and columnist
See http://technology.news.com.au/opinion/ 
       http://www.abc.net.au/http/sfist/         (some archives)
       http://www.electric-words.com              (main archives)
70 Middle Harbour Road, Lindfield, 2070,   N.S.W,   Australia
Phone +61 2 9416 7458                        Fax  +61 2 9416 4582



Archive provided courtesy of WaveGuide, http://www.wave-guide.org
Reprinted with permission of Roy Beavers, http://www.feb.se/EMF-L/EMF-L.html