This link has been bookmarked by 25 people . It was first bookmarked on 15 Aug 2006, by veasna.
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28 Apr 12
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The electromagnetic fields produced by mobile phones are classified by the International Agency for Research on Cancer as possibly carcinogenic to humans.
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02 Feb 12
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Mobile phone use is ubiquitous with an estimated 4.6 billion subscriptions globally.
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16 Jan 12
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23 Nov 11
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18 Oct 11
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03 Oct 11
Jon Kanie"Electromagnetic fields and public health: mobile phones "
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28 Aug 11
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28 Jul 11
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01 Jun 11
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20 Mar 11
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equencies between 450 and 2700 MHz with peak powers in the range of 0.1 to 2 watts. The handset only transmits power when it is turned on. The power (and hence the radiofrequency exposure to a user) falls off rapidly with increasing distance from the handset. A person using a mobile phone 30–40 cm away from their body – for example when text messaging, accessing the Internet, or using a “hands free” device – will therefore have a much lower exposure to radiofrequency fields than someone holding the handset against their head.
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01 Dec 10
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Epidemiological research examining potential long-term risks from radiofrequency exposure has mostly looked for an association between brain tumours and mobile phone use. However, because many cancers are not detectable until many years after the interactions that led to the tumour, and since mobile phones were not widely used until the early 1990s, epidemiological studies at present can only assess those cancers that become evident within shorter time periods. However, results of animal studies consistently show no increased cancer risk for long-term exposure to radiofrequency fields.
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There are some indications of an increased risk of glioma for those who reported the highest 10% of cumulative hours of cell phone use, although there was no consistent trend of increasing risk with greater duration of use.
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the increasing use of mobile phones and the lack of data for mobile phone use over time periods longer than 15 years warrant further research of mobile phone use and brain cancer risk.
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26 Oct 10
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13 Aug 10
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17 Jun 10
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06 Mar 09
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Electromagnetic fields and public health: mobile telephones and their base stations
Mobile telephones, sometimes called cellular phones or handies, are now an integral part of modern telecommunications. In some parts of the world, they are the most reliable or only phones available. In others, mobile phones are very popular because they allow people to maintain continuous communication without hampering freedom of movement.
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Handsets: Mobile phone handsets are low-powered RF transmitters, emitting maximum powers in the range of 0.2 to 0.6 watts.
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Base stations: Base stations transmit power levels from a few watts to 100 watts or more, depending on the size of the region or "cell" that they are designed to service.
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Typically within 2-5 metres of some antennae mounted on rooftops, fences keep people away from places where the RF fields exceed exposure limits.
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Other RF sources in the community: Paging and other communications antennae such as those used by fire, police and emergency services, operate at similar power levels as cellular base stations, and often at a similar frequency.
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Other health risks: Scientists have reported other effects of using mobile phones including changes in brain activity, reaction times, and sleep patterns.
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risk of traffic accidents when mobile phones
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medical devices (including pacemakers, implantable defibrillators, and certain hearing aids) there is the possibility of causing interference. There is also the potential of interference between mobile phones and aircraft electronics.
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to identify if there are links between use of mobile phones and head and neck cancers.
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mobile phone users, those who work near or live around base stations, as well as people who do not use mobile phones.
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If individuals are concerned, they might choose to limit their own or their children's' RF exposure by limiting the length of calls, or using "hands-free" devices to keep mobile phones away from the head and body.
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uch as cardiac pacemakers and hearing aids. In hospital intensive care departments mobile phone use can be a danger to patients and should not be used in these areas. Similarly mobile phones should not be used in aircraft as they may interfere with its navigation systems.
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either a conventional handset
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Simple protective measures: Fences or barriers or other protective measures are needed for some base stations (principally, those located on building rooftops) to preclude unauthorised access to areas where exposure limits may be exceeded.
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Siting base stations near kindergartens, schools and playgrounds may need special consideration. Open communication and discussion between the mobile phone operator, local council and the public during the planning stages for a new antenna can help create public understanding and greater acceptance of a new facility.
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27 Mar 08
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integral part of modern telecommunications.
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popular
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maintain continuous communication without hampering freedom of movement.
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exposure to radiofrequency (RF)
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30 Nov 06
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These effects are small and have no apparent health significance
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Current scientific evidence indicates that exposure to RF fields, such as those emitted by mobile phones and their base stations, is unlikely to induce or promote cancers.
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increased risk of traffic accidents
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24 Aug 06
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printable version
Fact sheet N°193
Revised June 2000
Electromagnetic fields and public health: mobile telephones and their base stations
Mobile telephones, sometimes called cellular phones or handies, are now an integral part of modern telecommunications. In some parts of the world, they are the most reliable or only phones available. In others, mobile phones are very popular because they allow people to maintain continuous communication without hampering freedom of movement.
This fact sheet has been updated in the light of recent reviews of the effects on human beings of exposure to radiofrequency (RF) fields conducted by the World Health Organization (WHO) in November 1999, the Royal Society of Canada (1999), and a review on mobile phones and health by an expert committee in the United Kingdom (IEGMP 2000).
Use of mobile phones
In many countries, over half the population already use mobile phones and the market is still growing rapidly. The industry predicts that there will be as many as 1.6 billion mobile phone subscribers worldwide in the year 2005. Because of this, increasing numbers of mobile base stations have had to be installed. Base stations are low-powered radio antennae that communicate with users' handsets. In early 2000 there were about 20,000 base stations in operation the United Kingdom and about 82,000 cell sites in the United States, with each cell site holding one or more base stations.
Concerns for health
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23 Aug 06
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15 Aug 06
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Electromagnetic fields and public health: mobile telephones and their base stations
Mobile telephones, sometimes called cellular phones or handies, are now an integral part of modern telecommunications. In some parts of the world, they are the most reliable or only phones available. In others, mobile phones are very popular because they allow people to maintain continuous communication without hampering freedom of movement.
This fact sheet has been updated in the light of recent reviews of the effects on human beings of exposure to radiofrequency (RF) fields conducted by the World Health Organization (WHO) in November 1999, the Royal Society of Canada (1999), and a review on mobile phones and health by an expert committee in the United Kingdom (IEGMP 2000).
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ACE Diploma Internet for Academic Study
16 Aug. 06
Outline 2 Mobile Phone
24.08.06
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