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Are Wi-Fi Hotspots Useful or Environmental Hazards?

by Cell Phone Protection on October 28, 2010

By Paul Fitzgerald

  What is WiFi? It is possible to form a somewhat informed opinion on the safety or potential risks of this new technology without actually being a physicist yourself. Quite simply, Wi-Fi is the wireless technology most commonly used to connect people to the Internet in schools, coffee shops, hotels and other network locations, or to connect cell phone users to one another. Wi-Fi is certainly convenient for travelers and students, but is it dangerous? Many believe that the low-level electromagnetic waves that radiate from the wireless Internet source to each individual user can be harmful to your health, even causing cellular changes and possibly cancer in some cases.

The area covered by a WiFi Internet connection is known as a “hotspot”; this is the area in which the waves radiate to give users access to the world wide web. It can span several kilometers, although the waves cannot pass through treed areas. While in the hotspot, a laptop user can simply connect to the network, access the Internet, and check their Email or do their other business on the run.

A wireless network uses radio waves to send communications across a two-way network. A computer’s wireless adapter translates the Internet connection data into a radio wave and sends it to the wireless router – the one in your laptop. This process works in reverse as well, sending a radio signal back to the host computer.

Hotspots Useful Stations or Environmental Hazards?

Some report an unusual sensitivity to the waves emitted in these hotspots. Officially, the levels of WiFi electromagnetic radiation emitted into the environment in a hotspot are well below recommended levels and there is no evidence of any risk to humans. Yet some people blame WiFi exposure for everything from sleep disturbances, headaches and blurred vision, to heart and breathing problems.

Because no study has ever shown a conclusive risk to human health from exposure to these low-frequency radio transmissions, many simply shrug off the complaints of these people, choosing to believe their symptoms are coincidental or caused by another source.

So just how high are the levels of radiation in a hotspot? According to Dr. Michael Clark of the HPA, the published research on mobile phones and wireless networks does not indicate a risk to human health. “All the expert reviews done here and abroad indicate that there is unlikely to be a health risk from wireless networks” he says. “The few studies on cellular phone masts that have appeared in peer-reviewed journals claiming to observe health effects are not at all conclusive. The real problem is deciding what level of precaution is appropriate.

“When we have conducted measurements in schools, typical exposures from wifi are around 20 millionths of the international guideline levels of exposure to radiation. As a comparison, a child on a mobile phone receives up to 50% of guideline levels. So a year sitting in a classroom near a wireless network is roughly equivalent to 20 minutes on a mobile. If wi-fi should be taken out of schools, then the mobile phone network should be shut down, too – and FM Radio and TV, as the strength of their signals is similar to that from wi-fi in classrooms.”

Educational Cell Phone Digital Book by Paul Fitzgerald, EMF expert, graduated from NJIT in Newark, NJ. He has been studying EMF’s for over 15 years.. He has done over 100 radio shows in 2006 and released his book CellPhone Lies To learn more go to EMF Radiation News.


Cell Phone Dangers – Protecting Our Homes From Cell Phone Radiation

By Mike Arms

  There are over 4 billion cell phone users throughout the world today – that’s about 4 people out of every 6 living on this planet and owning a cell phone, subscribed to a cellular phone plan, or living with someone who owns a mobile phone. The ubiquity of wireless phones brings to the fore certain issues related to this device, like cell phone dangers to human health.

All mobile phones, when turned on, emit electromagnetic radiation in the microwave radio frequency range. It is this cell phone radiation, as it is absorbed by human tissue (most commonly in the head, as you place the phone next to your ear when you talk) that has come under intense scrutiny this past decade. Several epidemiological and experimental studies have associated prolonged cell phone use to sleeping disorder, cognitive problems, headaches, stress, brain tumors, and cancer.

Experiment Without Controls

On the other hand, studies with opposing results and observations have also been published. CTIA, the wireless industry’s lobbying association pointed out to studies or statements from the World Health Organization (WHO), the American Cancer Society, and the FDA downplaying potential cell phone dangers, “all have concurred that wireless devices are not a public health risk.”

But, as Professor Devra Davis, at the University of Pittsburgh Cancer Institute explains, “the latency between exposure and brain cancer could be 20 or 30 years” and by using cellular devices without any clear understanding of cell phone dangers, “we are basically treating ourselves like lab rats in an experiment without any controls”

The verdict is still out, obviously, but are you willing to take the risk?

Protect Yourself

Today, at the Consumer Electronics Show 2010 in Las Vegas, a company called Pong Research has announced the availability of a product called Pong BlackBerry Curve Case which claims to reduce users’ exposure to mobile phone radiation by 60%. Until this product is introduced by other manufacturers to cover other brands and will be marketed widely, however, we all just have to take certain precautionary measures to protect ourselves from suspected cell phone dangers:

Keep your cell phone away from your body. The greatest exposure to cellular phone radiation is when it is 6 inches or less from any body part.

Text more, talk less. Take only the most important calls or make the least amount of calls on your phone and transmit messages through SMS.

Use headset or speakerphone function. wireless phone radiation is emitted directly from a unit’s built-in antenna. Using a headset ensures that the actual cell phone is located away from your head, which can easily absorb EMF radiation.

Use your land line. It’s definitely safer to talk on the land line than on a mobile phone, because this lessens your exposure to radiation.

Turn off your cell phone while charging. Not only will you charge your phone faster, it will also cut down on radiation emission from your cell to which everyone in your house or office is exposed to.

Purchase or use phones that have been certified or tested to emit the least amount of radiation. The Environmental Working Group has prepared an exhaustive list covering over 1,000 phones currently in the market, and they have come up with a list of the 10 best phones (with least radiation output) to use.

Keep cellular phones away from children. Children’s skulls are thinner and their brains are less dense than adult brains, radio frequency signals can penetrate deeper into a child’s brain than in an adult’s.

Theres a greater concern for children because the life-time exposure will be much higher, says Jane Houlihan of the Environmental Working Group. In the United States, as many as seven in ten children between the ages of 12 and 17 own a mobile phone, and half use them daily, according to the New York Times.

At the moment, there is no conclusive, peer-reviewed evidence that points to cell phone dangers from radiation exposure. The science is evolving on this subject, but if we must err, it should be on the side of caution. When it comes to our health and those of our children, nothing should be left to chance, let’s always protect ourselves.

Article Source : Article King Pro – Free Reprints and Distribution

Michael Arms contributes articles on cell phone dangers and other mobile phone-related issues at the Pacebutler Recycling and Environment Blog. You can sell, recycle, or donate cell phones through Pacebutler Corporation, a US-based cellular phone trading and refurbishing company.

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