1. Invisible threat Rocky (Wataru Sarae)

2. microwaves Fill in the blank! www.CartoonStock.com

3. 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

4. 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 for given tissue masses 1g (USA) 10g (others) (exposure time: 6 min)

5. Reports SARReported 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/cm 2 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/day 24 months ? 2 hr/day 4 days/w 22 months 2 hr/day 6 days/w 6 months Referenc es Repacholi, 1997 Guy, 1984 Adey, 1996 Szmigiels ki, 1982 http://www.wave-guide.org/library/studies.html http://www.mcw.edu/gcrc/cop/cell-phone-health-FAQ/toc.html

6. 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. 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 head "Prudent avoidance" 4) Extend Antenna to its full length. 5) Use headset. 6) Use low-SAR cell phone.

7. 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 1.56 Motorola RAZR V3c 1.58 Motorola ST7897 1.58 Motorola L6 1.58 Motorola C343 1.58 Motorola C341 1.58 Motorola C333 1.58 Motorola C332 1.59 Motorola V120e 1.59 Motorola V60x 1.59 Motorola 120e *out of 826 models

8. In case... - you have a HIGH-SAR cell phone, - you DON'T have a headset, - the reception is POOR.