A Report on Non-Ionizing Radiation

News & Comment

Tuesday, March 8, 2011

"Cell Phones Affect Brain Activity." That headline has appeared all over the world since Nora Volkow published a PET scan of a brain lit up by a cell phone last month. Her colorful graphics, published in the high impact Journal of the American Medical Association (JAMA), guaranteed Volkow a large and attentive audience. But all the hoopla shouldn't obscure the fact that for more than a decade many others, notably Peter Achermann's group at the University of Zurich, have shown similar types of radiation-induced changes in the brain as well as much more.

Low-Level Effects Get a Boost

Tuesday, February 22, 2011

A well-regarded and influential team of researchers from the National Institutes of Health (NIH) and the Brookhaven National Lab (BNL) is on the brink of resolving a long-standing dispute with enormous implications for public health. In a paper due out tomorrow, Nora Volkow and coworkers are reporting that cell phone radiation can affect the normal functioning of the human brain.

Whether these short-term changes will lead to health consequences (and what they might be) is far from clear — though Volkow already has preliminary indications of a long-term effect. Nor is the mechanism of interaction yet known. But the new finding, if confirmed, would at the very least force a rethink of the prevailing orthodoxy, which maintains that low levels of RF and microwave radiation are too weak to have any effect and can be disregarded.

Tuesday, December 21, 2010

It's only a short letter buried in the back pages of a journal, but it could change the entire cell phone–cancer controversy.

A group at Hebrew University in Jerusalem has reported a sharp increase in the incidence of parotid gland tumors in Israel over the last 30 years. Rakefet Czerninski, Avi Zini and Harold Sgan-Cohen found that these tumors have quadrupled since 1970, "with the steepest increase" after 2001 (see plot below). Their letter appears in the January 2011 issue of Epidemiology; it's a free download. They are with the Hadassah School of Dental Medicine at the university.

Wednesday, December 15, 2010

John Snow is known as the father of modern epidemiology, best remembered for helping end the 1854 cholera epidemic in London. At the time no one yet knew that cholera is caused by bacteria, but Snow had long suspected that it was transmitted by food or water. In the hard-hit neighborhood of Soho where hundreds had died, Snow mapped the location of the homes of the victims and could see that most lived near the Broad Street water pump (see image below). Snow was able to persuade local officials to remove the handle of the pump and soon the epidemic subsided.

Wednesday, December 1, 2010

The acoustic neuroma story is becoming quite compelling.

Researchers in Tokyo have reported that they too found more of these tumors of the acoustic nerve among long-term cell phone users —the third group to see this link. Those who used cell phones for more than 20 minutes a day for at least five years had three times more acoustic neuromas than expected. The Japanese team also saw a strong suggestion of a dose-response relationship: The longer people used cell phones —both in terms of minutes of daily calls and years of use— the greater their risk.

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Short Takes

September 22, 2017

Apple has released the RF exposure numbers —SARs, or specific absorption rates— for its new Series 3 Watches. These are the first wristwatches that can connect to cellular networks without being tethered to an iPhone.

The highest exposures, according to Apple, occur when the new watches are placed next to the head. The SAR measurements are based on a 10mm separation distance. The Model A1860 entails the highest exposure: 0.53 W/Kg averaged over 1g of tissue (0.52 W/Kg for the A1861).

The...

August 30, 2017

The National Toxicology Program (NTP) will release the “complete results” of its $25 million project on cell phone cancer risks early next year, according to a statement posted on its Web site yesterday.

“The complete results from all the rats and mice studies will be available for peer review and public comment by early 2018,” the NTP states. The animals were exposed to GSM or CDMA radiation for two years before they were sacrificed...

January 31, 2017

The incidence of glioblastoma multiforme (GBM), the most virulent and deadly type of brain cancer, is going up in the U.K., while the incidence there of other types of malignant brain tumors are declining, according to some newly published raw data.

Take a look at the two plots below and the trends are immediately apparent.

The incidence rates are not corrected for age, or...

June 1, 2016

One common criticism of the new NTP cell phone cancer study is that, unlike the male rats, there was no significant increase in tumors among female rats.

For instance in its latest assault on the NTP results, the New York Times is running a comment by a pediatrics professor in Indiana, in which he states:

“It’s also odd that...

May 26, 2016
Last updated May 30, 2016

This evening, the National Toxicology Program (NTP) released a draft of the report on its two-year cell phone cancer study. Linda Birnbaum, the director of the NIEHS, and John Bucher, the leader of the study, will present the report at a teleconference tomorrow, Friday. They are the director and associate director of the NTP, respectively. [Birnbaum did not...

March 18, 2016
Last updated March 19, 2016

Weak RF fields may indeed be able to promote cancer, according to two leading members of the EMF/RF research community. Frank Barnes and Ben Greenebaum are offering theoretical arguments to explain how low-level RF radiation can alter the growth rates of cancer cells. They present their ideas in an article which has just...