mobile tower radiation
TRANSCRIPT
FROM
CELL PHONES/CELL TOWERS
By: Naveen Kumar
Outline of Presentation
Electromagnetic Radiation: Intro
Microwave Radiation Effects
SAR Limits
Radiation Pattern of Cell tower antenna
Effects on Plants, Animals, Birds & Humans
Suggested Solutions
Conclusion
Electromagnetic Radiations
EMR causes significant health hazards on human,animals, birds, plants and environment.
7.5
Lakhs
900+
Million
Mobile phones & Towers Statistics
in India
Population: 1.25 Billion
Mobile Subscribers: 96
Crores (Approx.)
Mobile phone towers:
7.5 Lakhs
Microwave Radiation Effects
Microwave radiation effects are classified as:
•Thermal
•Non-thermal
The current exposure safety standards are
mainly based on the thermal effects, which are
inadequate.
Non-thermal effects are several times more
harmful than thermal effects.
Heating Concept in Microwave
4.2 KW (4200 W) of microwave power raises temperature
of 1 Litre of water by 10°C in 1 second.
Cell Phone - Ear Warming?
Have you ever noticed the warm sensation in ear after
using mobile phone for a long time?
Warm sensation > pain > tinnitus
Tinnitus is Ringxiety- sensation of cell phone ring
SAR Limit for Mobiles & Towers
SAR (Specific absorption rate) - Rate at which
radiation is absorbed by human body, measured
in watts per kg (W/kg).
Since 2012 DoT has revised the SAR values in
mobile phones sold in India to 1.6 W/Kg
(Maximum)
For mobile towers also in 2012 DoT revised the
maximum SAR value to be 1.05 W/sq.m (For 3G
at 2100 MHz)
Cell Tower Transmit
Frequencies
Antennas on Cell Phone tower transmit in the
frequency range of:
• 869 - 890 MHz (CDMA)
• 935 - 960 MHz (GSM900)
• 1805 – 1880 MHz (GSM1800)
• 2110 – 2170 MHz (3G)
• 2300 MHz (4G)
Radiation Pattern of a Cell Tower
Antenna
Propagation of "main beam“ from antenna mounted on a tower or roof top
People living within 50 to 300 meter radius are in the high radiation zone (dark blue) and are more prone to ill-effects of electromagnetic radiation.
Effect on Environment: Plants
4 cell towers near Gurgaon-Delhi Toll
Naka
Output of most of fruit bearing trees
drastically reduced to < 5% after 2.5
years of cell tower installation.
Effect on Environment: Birds &
AnimalsHave you ever seen any bird near celltowers?
May be not because birds have morevolume and less weight, so heatingeffect is very fast. Also interferes withnavigation and reproduction.
Dairy cows – Decreased milkproduction, developmental problemsand decline in overall health.
Sheep, dogs, cats, rabbits living nearbase stations also gets affected.
Biological Effects on Human
Body
‘Are cell phones
injurious’
Sep. 2011.
SUGGESTED
SOLUTIONS
We have to decide
Wealth vs Health
Conclusion
Until now, man has been absorbing the harmful,
unseen EM radiations without even being
aware of it, but now, with rapid advent in
technology this RF Radiation pollution has
started having ill effects on human health and
health of animals.
Hence, there is an urgent need to take
precautionary steps.
Where to find me..
/chd.naveen
@saini_naveen87
/NaveenKumar11
www.elixir-india.com
Cell Phone Antennas17