Invisible threat

Rocky(Wataru Sarae)

microwaves

Fill in the blank!

www.CartoonStock.com

Frequency

Microwave oven

2.45 GHz

Cell phone

0.8 GHz

1.9 GHz

　Microwave oven & Cell phone

Power

500 W

or more

0.7 W

or less

Australia  

(ACA)

USA

(ANSIC95.1)

Europe

(ENV50166)

Japan

(TTC/MPT)

New Zealand

(NZS2772)

Whole BodySpatial Peak

21.6

2 2 2

0.08 0.08 0.08 0.04 0.080

0.5

1

1.5

2

Specific Absorption Rate (SAR)

SAR: Amount of radio wave energy absorbed by the body during cell phone use.

SAR Limits – Non Occupational

unit: W/kg

t

Tc

ESAR

2

for given tissue masses

1g (USA)

10g (others)

(exposure time: 6 min)

tissue ofdensity mass : tissue ofty conductivi electrical :

fieldelectric internal :

σ

E

Reports

SAR Reported Biological Effects

0.13 ~ 1.4 W/Kg

Lymphoma cancer rate is 2.4 times normal with two 1/2 hour exposures per day of cell phone exposure (pulsed digital mobile phone signal 900 MHz)

0.4 W/Kg

Statistically significant increase in malignant tumors at 480 µW/cm2

0.58 - 0.75 W/Kg

Biological effect on the development of brain tumors at 18% of standard (836 MHz TDMA digital cell phone signal)

2-3 W/Kg

Cancer acceleration in skin and breast tumors at 50 - 75% of standard

?

Adey, 2002

?

Utteridge 2002

Repeat-ability

Time

1 hr/day24 months

?

2 hr/day4 days/w22 months

2 hr/day6 days/w6 months

References

Repacholi, 1997

Guy, 1984

Adey, 1996

Szmigielski, 1982

http://www.wave-guide.org/library/studies.htmlhttp://www.mcw.edu/gcrc/cop/cell-phone-health-FAQ/toc.html

3) Use a cell phone where the reception is good.

3) Use a cell phone where the reception is good.

2) Keep your phone as far from your body as possible especially during sending and receiving.

2) Keep your phone as far from your body as possible especially during sending and receiving.

4) Extend Antenna to its full length.

5) Use headset.

6) Use low-SAR cell phone.

1)Don't push a cell phone on your head1)Don't push a cell phone on your head

"Prudent avoidance"

4) Extend Antenna to its full length.

5) Use headset.

6) Use low-SAR cell phone.

How much is the SAR of your cell phone?

http://www.sarshield.com/english/radiationchart.htm

SAR rating(1.6W/kg)

Manufacturer / Model number

Worst 10*

10

4

4

4

4

4

4

1

1

1

1.56Motorola RAZR V3c

1.58Motorola ST7897

1.58Motorola L6

1.58Motorola C343

1.58Motorola C341

1.58Motorola C333

1.58Motorola C332

1.59Motorola V120e

1.59Motorola V60x

1.59Motorola 120e

*out of 826 models

In case ...

In case ...

- you have a HIGH-SAR cell phone,

- you DON'T have a headset,

- the reception is POOR.