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Zwitserland: Waarschuwing overheid voor gebruik WLAN & EMF fact sheets    
Ga naar overzicht berichten in: Berichten Internationaal

Zwitserland: Waarschuwing overheid voor gebruik WLAN & EMF fact sheets
zaterdag, 01 februari 2014 - Dossier: Internationale berichten


Bron: www.bag.admin.ch/themen/strahlung/00053/00673/03570/index.html?lang=en .

Federal Office of Public Health (FOPH)

WLAN


A wireless local area network (WLAN) allows computers and laptops to be connected to each other, to peripheral devices (printers, scanners etc.) and to an Internet access point. WLAN-enabled mobile and cordless phones are increasingly being used for Internet telephony.
The data that need to be sent from one device to another are transmitted using a high-frequency radio link instead of a cable. Devices connected to a WLAN can both receive and transmit.

The level of electromagnetic energy emitted by the devices depends on their transmitting power and the volume of data being sent. This radiation is most intense when the maximum data volume is transmitted. It decreases rapidly with increasing distance from the transmitter. Even at maximum transmission power and data volume, the radiation emitted is 10 times lower than the recommended safety level at a distance of 20 cm from the transmitter, and 40 times lower at a distance of 1 metre.
It is currently not known whether the electromagnetic fields created by WLANs pose a risk to health.
WLAN devices generally emit a low level of radiation, and caution should be exercised primarily when using devices held close to the body, such as laptops, PDAs and Internet telephones.
We would offer the following advice to people who prefer to minimise their personal exposure by keeping the electromagnetic fields in their home or office as small as possible:

Only switch your WLAN on when you need it. With laptops, in particular, it is a good idea to switch the WLAN off as otherwise the device will repeatedly try to connect to a network, leading to unnecessary radiation and a shorter battery life.

Don’t hold your laptop close to your body while it is connected to a WLAN.
Wherever possible, install the access point one metre away from places where you work, sit or rest for long periods of time.

Position the access point centrally so that all the devices in the network have good reception.

Choose the WLAN g standard in preference to the b standard. Exposure to radiation is lower with this standard because it transmits data more efficiently.

If it is possible to adjust the power of the network, the transmission power should be optimised at the access point for the area that needs to be supplied.

A WLAN transmitter must only be used with an antenna provided for this purpose by the manufacturer. If an unsuitable antenna with an excessive antenna gain is used, the maximum permitted transmission power may be exceeded.

The measures recommended by the FOPH for reducing radiation exposure when using mobile phones apply to WLAN-enabled mobile phones that are used for Internet telephony.


Detailed information
1. Structure and uses
2. Technical data
3. Measuring exposure
4. Effects on health
5. Regulation in law
6. References

Voor het hele artikel zie bovenstaande link. Deze uitvoerige waarschuwing mag speciaal genoemd worden omdat die van de Zwitserse overheid afkomstig is.
Voor fact sheets van de Zwitserse overheid over: spaarlampen, magnetrons, waterbedden, mobieltjes, DECT telefoons, bluetooth, babyfoons, enz.,
zie:

www.bag.admin.ch/themen/strahlung/00053/00673/index.html?lang=en .



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