All cell phones, once turned on, emit certain amounts of electromagnetic radiation in the microwave radio frequency range. Over the past 15 years, when mobile phone use has become extraordinarily common around the world, the effects of this radiation on human health have been intensively studied and the subject of much heated debate. In recent years, we have seen report after report linking prolonged cell phone use and exposure to varying amounts of cell phone radiation to brain tumors, cancer, stress, headaches, cognitive problems, and sleep disturbances.

However, most of these studies have been questioned by other scientists or considered biased by other groups that also produced evidence to the contrary. As such, there is no definitive and indisputable conclusion, as of yet, about the dangers of cell phones. Scientists warn, correctly, that there is much we don’t know about the effects of mobile phone radiation, and that the full impact may be known within a few years, when it is too late to reverse any damage.

“The latency between exposure and brain cancer could be 20 or 30 years,” observes Professor Devra Davis of the University of Pittsburgh Cancer Institute. By using mobile devices without a clear understanding of the dangers, “we are basically treating ourselves like lab rats in an experiment without any controls.”

To mitigate the potential dangers of cell phones, experts recommend certain safe practices in the use of wireless devices. Some of the most common recommendations are: Keep your cell phone away from your body, text more and talk less, use the headset or speakerphone function, use your landline phone, turn off your cell phone while charging, keep phones Keep cell phones out of the reach of children, and buy or use phones that have been certified or tested to emit the least amount of radiation.

It is with the intention of educating the public about the dangers of cell phone radiation that the Environmental Working Group (EWG) has conducted a comprehensive study, covering more than a thousand models of cell phones on the market, detailing the amount of radiation that every mobile phone emits. The EWG is a 501(c)(3) non-profit organization, founded in 1993 by Ken Cook and Richard Wiles, whose goal is “to use the power of public information to protect public health and the environment.”

These are the 10 mobile phones that emit the least radiation, according to the EWG report:

1. Samsung Print (SGH-a877) [AT&T]

2.Motorola RAZR V8 [CellularONE]

3 Samsung SGH-t229 [T-Mobile]

4. Samsung Rugby (SGH-a837) [AT&T]

5. Samsung Propel Pro (SGH-i627) [AT&T]

6. Samsung Gravity (SGH-t459) [CellularONE, T-Mobile]

7. T-Mobile Companion [T-Mobile]

8. LG Xenon (GR500) [AT&T]

9.Motorola Karma QA1 [AT&T]

10.Sanyo Katana II [Kajeet]

Visit ewg.org/cellphone-radiation/ for the report and the full list.

As the CTIA, the wireless industry lobby group, pointed out, there is still no conclusive and fully substantiated study on the dangers of cell phones. However, it’s no secret that government agencies in some countries have begun issuing warnings and ordering cell phone manufacturers to clearly state the amount of radiation emitted by each model they sell to the public.

Until we can finally close that gap in our knowledge about the dangers of cell phone radiation, we can only take precautionary measures to protect ourselves. An important way to protect our health is by buying or acquiring mobile phone models that have the least amount of radiation.