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- From: btbg1194@uxa.cso.uiuc.edu (Bradley T Banko)
- Subject: Re: High voltage transmision lines and human health
- References: <1992Jul23.163418.234@mis.mcw.edu> <BrwEn3.3BA@news.cso.uiuc.edu> <1992Jul27.112901.248@mis.mcw.edu>
- Message-ID: <Bs4Hux.7tB@news.cso.uiuc.edu>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Date: Tue, 28 Jul 1992 23:42:32 GMT
- Lines: 70
-
- In article <1992Jul27.112901.248@mis.mcw.edu> jmoulder@mis.mcw.edu writes:
- >btbg1194@uxa.cso.uiuc.edu (Bradley T Banko) writes:
- >>>
- ...
- >4) Biological plausibility: The plausibility of deriving a cause-effect
- >relationship from an epidemiological correlation is enhanced when results
- >of experimental animal and cell studies support the epidemiology.
- >So far, ELF fields have not been shown to be carcinogenic in animals or
- >genotoxic in cells.
- >
- >>>3) From a review of epidemiological studies of human exposures to power
- >>>frequency EMFs I conclude that one can *speculate* that these fields might in
- >>>some way *influence* cancer risks.
- >>
- >> On the other hand, a paper by that "baseball" physicist at Yale looked at
- >> (Robert Adair)
- >> the matter in somewhat theoretical terms, and concluded that there should
- >> essentially be no effect from ELF fields (resonance absorption on a cellular
- >> level), if I remember right.
-
- (I don't mean to minimize Adair's work by referring to him as the "baseball"
- physicist, but that is an interesting hobby of his. He actually works in
- high energy physics, I think.)
-
- >
- >Yes, Adair (Phys Rev A 43:1039-1048, 1991.) argues that biological effects
- >of weak ELF effects at the cellular level, if they exist, must have
- >explanations outside the scope of conventional physics.
- >
- >I'm not very comfortable with this argument.
- >I recall a paper from college biology in which an engineer demonstrated that
- >hovering of humming birds was an optical elusion, as hovering was "impossible".
- >
- >I also recall a paper from the early 1950's that demonstrated that ionizing
- >radiation could not kill cells because the amount of kinetic energy delivered
- >paper exists, if anyone can verify a reference, I would appreciate it].
-
- That is a perfectly understandable line of reasoning in this context which
- doesn't take into account the amplification mechanism for the DNA damage that
- mutations can cause. Adair's article was trying to avoid the possibility that
- ELF fields could deposit energy which could couple to this DNA mutation
- amplification chain, and I thought that he made a good case for it. This
- assumes that there are not any other ways for the energy to couple in...
- so that it would produce only general thermal heating in tissues in the worst
- case. That makes a lot of sense in the face of what we do understand
- about the molecular biology and biochemistry of the human body.
-
- >
- >In this context, see Jackson (Proc Nat Acad Sci USA 89:3508-3510, 1992) who
- >argues that the lack of a historic correlation between electrical power
- >generation and the incidence of cancer eliminates the possibility that
- >power-frequency fields are a significant cause of cancer.
-
- I never can seem to discuss this for very long without flip-flopping.
- The weight of the evidence and reasoning seem to be well on the side of
- there being no effect.
-
- >
- >John Moulder (jmoulder@mis.mcw.edu)
- >Radiation Biology
- >Medical College of Wisconsin
- >Milwaukee, WI 414-266-4672
-
- Brad Banko
-
- --
- Brad Banko; Dept of Physics; U of Illinois; b-banko@uiuc.edu, KB8CNE
- =========================================================================
- TI NUCLEAR MAGNETIC RESONANCE IMAGING OF CHOCOLATE CONFECTIONERY AND THE
- SPATIAL DETECTION OF POLYMORPHIC STATES OF COCOA BUTTER IN CHOCOLATE
-