Mark,

Some publications that may help you are as follows:

ANSI/IEEE C95.1, IEEE Standard for Safety Levels with Respect to Human
Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz.

American Conference of Government Industrial Hygienists, Handbook of
Threshold Limit Values...Biological Exposure Indices

Health Canada Safety Code 6

VDE 0848, Part 2, Safety at Electromagnetic Fields...0 to 30 kHz, Part
4, Safety at Electromagnetic Fields...10 kHz to 3000 GHz.

CENELEC  Standards ENV 50166-1 and -2, Human Exposure to Electromagnetic
Fields from 0 Hz to 300 GHz.

Many of these have a section on rationale as well as limits and include
extensive references, useful for further investigation.

The Bioelectromagnetic Society (BEMS) charges a modest fee for
membership and includes a newsletter and updated journal on research
going on in this area.

An association called Electomagnetic Energy Association (EEA) provides
courses on background and fields effects, and newsletters to members on
current legislative activities around the world (202-452-1070).

Another organization is the IEEE COMAR, Committee on Man and Radiation.

Together these organizations will be able to answer all of the questions
you have posed below.

Don Umbdenstock
umbdenst...@sensormatic.com

 ----------
From: Mark Montrose
To: emc-p...@ieee.org
Subject: RF fields and biological effects
List-Post: emc-pstc@listserv.ieee.org
Date: Tuesday, June 24, 1997 2:48AM


Greetings.

I am interested in locating a web page, resource, or on-line information
to
provide answers to the following. Low frequency, i.e., 50/60 Hz, ELF and
VLF fields are "not" a concern for these questions.  I am interested in
higher frequency RF fields.

1.   Typical self-resonant frequency range of the human body?  How to
calculate it.

2.   What kind of "high frequency" RF fields, either magnetic or
electric
cause biological harm?

3.   At what frequency ranges (microwave, radar, etc.) is biological
harm
noted?

4.   What power levels are required in the GHz range, or even in the
30-300
MHz range to cause harm, (25V/m, 60V/m, 100V/m, etc.)?

5.   How long does one need to be exposed to high intensity radiated
fields
before effects are noted?

6.   Does the US Government or any international standard exists related
to
SAR (specific absorption rate) or recommendation for safe levels?

7.   What are typical symptoms if one has been exposed to dangerous
field
levels,
whatever they may be?

8.   Is there any published studies on high frequency RF effects in the
public domain, not ELF, VLF studies?

9.   Are there any known "factual" and "documented" cases of biological
harm reported (besides the Florida woman who allegedly died of brain
cancer
from
using a cell phone that is currently in the courts)?

Thanks

 --Mark Montrose--
mmont...@ix.netcom.com

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