School confident Wi-Fi system safe

Chris MorrisThe Rosebank Primary School in Balclutha has assured parents there are no safety issues about electromagnetic radiation levels emitted by the school's Wi-Fi computer network, installed last September.

Two families are known to have withdrawn their children from the school in February and a third family joined them this week, citing concern about health risks.

But in a four-page newsletter, issued to parents by the school's Board of Trustees on Thursday, the school insists the results of a National Radiation Laboratory test of equipment, carried out on January 20, prove the equipment complies with the relevant regulations and operates at "very safe levels of electromagnetic radiation".

Principal Chris Morris confirmed six children had been withdrawn from the school over this issue so far.

"The school respects the rights of parents to make decisions.

"We are sad and disappointed, but we respect people's right to choose. We've spent a considerable amount of time and money [$4410] investigating the process."

Parent Kim Cruse said she would like the school to be more receptive to hearing parents' concerns, and to look at all the evidence presented from both sides.

The Wi-Fi equipment was installed at the school last September, following recommendations in the Rosebank ERO report to upgrade the Information and Communications Technology system.

The Ministry of Education, in an email response to questions from the Otago Daily Times this week, said the installation of wireless networks was a "local issue for schools and they are not required to inform the Ministry if they are installing such a network".

Boards of trustees were required to provide a "safe and secure environment for pupils and teachers - they are therefore expected to purchase and install products that meet the international guidelines for wireless radiation."

After receiving several letters on the issue at Rosebank, the ministry believed the school management and board had "responded in an appropriate manner".

The Rosebank board will survey the school community on Monday to gauge opinion on the issue and how it has been handled.

It has offered to pass on any scientific articles to parents who request them.

David and Julia Hunter, who removed their child at the beginning of the school term, are seeking legal advice over being publicly named by the school in this week's newsletter.


• Wi-Fi
> Wireless networks use radio waves to transmit data.
> Wireless adapters inside computers translate data into radio signals, and transmit via an antenna.
> The radio signals are received by a router and decoded back into data.

- rachel.taylor@odt.co.nz

 

Wifi and radiation

Electromagnetic radiation - that sounds really scary - electricity mixed with magnets and radiation? How could this be allowed?
The reason why it's allowed is that EMR is simply any kind of signal, AM radio, FM radio, TV reception, cellphones, wifi and even visible light is all EMR. Light from our sun is by far the most destructive form of EMR (I don't know how much stronger but I wouldn't be surprised to hear that it's millions, billions or trillions of times stronger), we would not be here if it weren't for the powerful magnetic shield that our earth has.

Personally I find this link a good read.
As with any topic and the ready availability of information on the internet, the most important thing to do for anyone concerned is to research the issue themselves. Be warned that just because someone has posted information on the internet is not synonymous with qualified research. Regardless of your viewpoint you will find information to support your claim, but look for the information that is backed up with control tests and studies and independent verification.

The real culprits

Cellular-phones are far more dangerous than Wi-fi, since by being held against an ear, in use, they are within cms of the body's central nervous system. Years ago, in Australia I saw a documentary which caused me to pause and think about cell-phone use, especially over the prolonged periods that so many people yap mindlessly on them. For people to get all steamed-up over cellphone repeaters a few hundred metres away, and still use these devices held up against the sides of their heads, is laughably inconsistent to say the least. But, the worst feature of all, is how we have allowed ourselves to develop psychological dependencies on these devices, which have led to major changes in human behaviour and social skills. It would be fair to say that they have become as addictive, as smoking.

I sought to draw attention to this in the only way possible for me several years ago, when I saw it beginning to develop, but the ODT fobbed-off any correspondence I wrote on the subject. Someone, at least, should do comprehensive research on the effects of these devices and make it public, if they aren't already engaged in doing-so, before we turn into a nation of electronics-dependent zombies. In Europe there is a phenomenon called 'electronic smog' due to signals in the frequency range around 2.4gHz (eg micro-waves), especially and it is becoming known as a health hazard, I believe. I use 2.4ghz gear myself, but always held well away from my body.

Strength of WiFi radiation

I work in IT, and if you are concerned about electromagnetic radiation exposure, you have to bear the signal strength in mind. If you are concerned about possible RF health risks, it is the energy in the photons of the signal that could cause bodily damage.
From what I know, mobile phones (~2 W or ~2000mW ) have a far greater signal strength (20x ?) than computer wifi cards (~100mW). Mobile phones are very strong signal producers, and it could be that there is more RF signal around the home from computers, TVs, Microwave ovens etc than you would get from a Computer WiFi network. Mobile phones are the RF source that should be looked at first.

WiFi concerns

Fair enough if the family has have concerns, but from what I understand the maximum radiofrequency fields from the Rosebank WiFi equipment was just 0.045% of the recommended safe limit. A shame that the school has received this negative publicity due to the views of a minority.

[Abridged]

 

electromagnetic radiation

As I understand it the energy levels are far to low to do any damage. And you can not escape from electromagnetic radiation it is everywhere. Cosmic rays rip though us all the time and they have much higher energy levels. Read this link. It's about cell phones but covers the same stuff.

Wi-Fi Is not safe

I am dealing with the same issue here in Vancouver, Canada. Governments set radiation limits much higher that the level that causes biological effects. Good on the parents who pulled their kids out.

Have a look what Sir William Stewart, former health advisor to Thatcher and Blair has to say about Wi-Fi in an episode of BBC's Panorama, May 2007: www.tinyurl.com/panorama-wifi

You will also hear numerous other esteemed scientists and politician say how concerned about Wi-Fi. Also have a look at the Bioinitiative report: www.bioinitiative.org T

here is enough published, peer reviewed research out there that says that low levels of pulsed electromagnetic radiation are biologically active and can cause serious health problems (as we are witnessing across the planet).