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| | Economists report that more than 1 billion people on the planet are living on less than $2 a day. Cell phones and Internet access is out of their reach. But, economists note that phone service may help bring the world's poorest people to a better position. They believe that wireless phones are the best bet because landlines are faulty and even nonexistence in some areas of the world. Efforts to make such phones more widely available in poorer parts of the world have become major priorities for phone companies.
Cell Phone safety issues:
Unfortunately, reliable scientific researches relating to possible harm due to use of mobile phones is not carried out. Heating, connected with working of radio transponder is very less than heating on the Sun. But, cornea of an eye does not possess thermo-regulation mechanism, therefore, some studies speak about danger of cataract during long use of mobile phone. In 2005, Chinese researchers have come to a conclusion, that mobile phone radiation leads to DNA damage.
In some countries, norms for limiting the use of devices with too high radiation levels (see SAR, specific absorption rate) exist.
Intensity of the field, created by base stations, is negligibly small when compared to the field, created by terminals. Transmitter capacity of base station does not exceed 300 watts (for stations, established in an open field). Whereas in 3G networks, the capacity is even less than in 2G networks. It is interesting that, the increase in density of base stations leads to reduction of intensity of field (firstly, since the station is to serve smaller area, the capacity of transmitter is preset at smaller mark; secondly, directional antennas are established in densely populated areas). Sole persons, for whom the base stations are really harmful, are the personnel, serving the base stations. Disconnecting the equipment is very rare and cases exist, when the repairman has to work on the working antenna.
Cordless phones (consisting of radio tube and base module, connected to city telephone network) have much (about 100 times) smaller radiation levels than cellular phones as the radius of their action is limited to tens of meters. Therefore, cordless phones are safer.
Conversation on phone while driving leads to increased risk of accidents. In many countries, it is banned to talk on mobile phone while driving. Instruction manuals to mobile phones recommend to talk through headset or through complete set of loud-speaking communication or move on to the side of road and only then answer a call. But even with these devices, the driver, all the same, gets distracted and the risk to meet with an accident increases by four times (in comparison with those, who does not converse on phone while driving).
As the sizes of mobile phones are constantly decreasing and power consumption increasing, capacity of storage battery also increases. Sometimes, cases of explosion of storage batteries are encountered. Such cases are very rare though the fake storage batteries, which do not have the certification of manufacturer, explode.
Mobile phone radiation can lead to improper functioning of complex medical equipment, therefore, it is not worth to use mobile phones in hospitals. Manufacturers of mobile phones recommend that the people, who use cardio simulators, should carry phones on side, opposite to cardio simulator (for example if it put on left side, then the phone should be held on right side).
People, using hearing aids, should necessarily test the phone before buying it since some models create interferences for hearing aids and the subscriber hears extraneous noises (peep, hum etc.). Similar effect is observed if the cellular phones are used near sound amplifying equipments.
While using cellular phone, it is necessary to consider its "espionage" functions: listening of conversations and determining the location of phone. All phone conversations are recorded by the operators and provided upon request to law enforcement bodies. Without storage battery, cell phone continues to accomplish some functions (for example, functioning of clock). It is possible, thanks to presence of built-in cells in the phone.
In 2007, Swedish scientists came to a conclusion according to the results of 11 studies, that use of cell phone for 10 years increases the occurrence possibility of tumor of acoustic nerve by twice. In this case, it is noted that the children are more prone since they have thin bone tissues when compared to adults. But, head of research group Mr. Kjell Mild stated that, it is too early to come to final conclusions about the harm done by radio waves on human being and stated that longer researches are to be carried out. |
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