Research and Standards to Regulate RF Exposure

murmerlastUrban and Civil

Nov 16, 2013 (3 years and 4 months ago)

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Distinguished Lecture

* * * ALL ARE WELCOME * * *

ENQUIRES: Dr. Fei Chen (
Tel: 2609
-
8458, Email: fchen@ee.cuhk.edu.hk)




Chung
-
Kwang

Chou

received

his

B
.
S
.
E
.
E

from

National

Taiwan

University

in

1968
,

his

M
.
S
.

from

Washington

University

in

1971
,

and

his

Ph
.

D
.

from

University

of

Washington

in

1975
.

His

current

position

is

Motorola

Chief

EME

Scientist,

and

the

Director

of

Corporate

EME

Research

Laboratory,

responsible

for

RF

product

safety
.

Dr
.

Chou’s

research

has

been

on

RF

biological

effects,

RF

dosimetry

and

exposure

systems,

hyperthermia

and

electrochemical

treatment

of

cancer
.



Dr
.

Chou

had

been

Chairman

of

IEEE/EMBS

Committee

on

Man

and

Radiation

(
1996
-
1997
),

Co
-
Chairman

of

IEEE

Scientific

Coordinating

Committee

28
,

Subcommittee

4

on

RF

Safety

Standard

(
1997
-

2005
),

Board

of

Directors

of

the

Bioelectromagnetics

Society

(
1981
-
1984
),

Associate

Editor

of

the

Journal

of

Bioelectromagnetics

(
1987
-
2003
)

responsible

for

editing

papers

on

high

frequency

RF

fields,

Electromagnetics

Academy

(
1990
-

),

Distinguished

Lecturer

of

IEEE

Engineering

in

Medicine

and

Biology

Society

(
1991
-
1992
),

Vice

Chairman

of

Committee

89
-
5

on

"Biological

effects

and

exposure

criteria

for

radio

frequency

electromagnetic

fields"

of

the

National

Council

on

Radiation

Protection

and

Measurements

(
1996
-
1999
),

Council

Member

of

NCRP

(
1998
-
2004
)
.

He

is

an

Associate

Member

of

the

Motorola

Science

Advisory

Board

(
2005
-

)

and

the

Science

Adviser

of

Mobile

Manufacturers

Forum

(
2001

-

)
.

Dr
.

Chou

is

Chairman

of

IEEE

International

Committee

on

Electromagnetic

Safety

Technical

Committee

95
,

responsible

for

safety

standards

from

0

to

300

GHz
.



Dr
.

Chou

has

published

about

190

peer
-
reviewed

papers

and

book

chapters,

and

presented

more

than

270

conference

papers

and

abstracts
.

He

is

a

Fellow

of

IEEE

(
1989
)

and

the

American

Institute

for

Medical

and

Biological

Engineering

(
1996
),

and

Electromagnetics

Academy

(
2007
)
.

He

received

the

highest

honor

d’Arsonval

Medal

from

the

Bioelectromagnetics

Society

in

2006
.

Research and Standards to Regulate RF Exposure

Time:
11:00am
-
11:40am, 7 Nov, 2007 (Wed.)

Venue:
Room 418, Ho Sin Hang Eng. Bldg., CUHK


The Chinese University of Hong Kong

Joint Research Centre for Biomedical Engineering, Dept. of Electronic Engineering


Jointly Organized By:


Joint Universities Consortium on Biomedical Engineering (JUCBE)

Biography

Lecture


RF

safety

concerns

started

in

the

1950
s

with

exposure

to

radar,

then

radio

and

TV

broadcasting

in

the

1960
s,

microwave

ovens

in

1970
s,

police

radar

in

1980
s

and

then

most

recently

wireless

communications
.

These

devices

emit

a

form

of

non
-
ionizing

energy

called

radiofrequency

(RF)

signals
.

The

electromagnetic

spectrum

helps

to

explain

a

major

difference

in

non
-
ionizing

and

ionizing

energy
.

The

well

known

cumulative

damaging

effects

of

ionizing

radiation,

such

as

X
-
rays

and

atomic

bombs,

do

not

occur

at

frequencies

below

those

in

the

UV

spectrum,

including

sunlight

and

infrared

frequencies

that

are

forms

of

non
-
ionizing

energy
.

Over

the

past

more

than

50

years,

a

large

data

base

on

the

bioeffects

of

RF

exposure

has

been

accumulated

to

support

health

risk

assessments

of

RF

exposure
.

Currently

there

are

about

1600

peer
-
reviewed

articles

in

the

WHO

database

relating

to

RF

bioeffects
.

For

mobile

telephony

alone,

there

are

about

600

peer
-
reviewed

papers

and

another

200

to
-
be
-
published

papers

are

listed

in

the

database
.

The

research

subjects

consist

of

epidemiological,

human,

animal

and

in

vitro

cell

studies
.

WHO

has

stated

that

scientific

knowledge

in

this

area

is

now

more

extensive

than

for

most

chemicals,

and

concluded

that

current

evidence

does

not

confirm

the

existence

of

any

health

consequences

from

exposure

to

low

level

electromagnetic

fields,

that

is,

at

exposure

levels

within

the

limits

set

by

international

standards
.



International

standards

for

measuring

mobile

phone

emissions

are

available
.

With

proper

regulation,

all

phones

should

comply

with

international

exposure

limits
.

RF

exposures

in

residential

and

office

building

from

base

stations

are

in

general

lower

than

1
%

of

international

limits

and

these

levels

are

similar

to

levels

from

radio

and

TV

broadcasts
.

WHO

Fact

Sheet

#
304

(May

2006
)

states
.

Considering

the

very

low

exposure

levels

and

research

results

collected

to

date,

there

is

no

convincing

scientific

evidence

that

the

weak

RF

signals

from

base

stations

and

wireless

networks

cause

adverse

health

effects
.

In

conclusion
:

1
)

RF

electromagnetic

energy

does

not

produce

nuclear

(ionizing)

radiation,

2
)

the

only

proven

RF

interaction

mechanism

for

adverse

health

effects

is

thermal,

3
)

exposure

levels

near

base

stations

are

very

low,

and

4
)

RF

emissions

from

mobile

phones

comply

with

international

safety

limits
.



Speaker:
Chung
-
Kwang Chou,
Ph.D.


Motorola Chief EME Scientist


Director of Corporate EME Research Laboratory



Motorola Labs, Fort Lauderdale, Florida, U.S.A.