IARC: Microwave News Article Archive (2004 - )

The RF–cancer story took a remarkable turn a few days ago. A new animal study challenged many of the assumptions which lie at the heart of claims that RF radiation —whether from cell phones, cell towers or Wi-Fi— are safe.

The new study, from Germany, a replication of an earlier experiment, also from Germany, found that weak cell phone signals can promote the growth of tumors in mice. It used radiation levels that do not cause heating and are well below current safety standards. Complicating matters even further, lower doses were often found to be more effective tumor promoters than higher levels; in effect, turning the conventional concept of a linear dose-response on its head.

Just over a year ago, the Danish Cancer Society (DCS) issued a news advisory with some alarming news: The number of men diagnosed with glioblastoma, the most malignant type of brain cancer, had doubled over the last ten years. Hans Skovgaard Poulsen, the head of neuro-oncology at Copenhagen University Hospital was quoted in the release as saying that this was a “frightening development.”

At the time, Christoffer Johansen, a senior researcher at the DCS told us: “I think the data is true and valid.” And Joachim Schüz, a long time collaborator of Johansen’s at the DCS who is now at the International Agency for Research on Cancer (IARC) in Lyon told Microwave News that the news was “indeed a concern.” He said that he could not explain it. (See our report here.)

After that, there was silence.

A new analysis from the U.S. National Cancer Institute has found that the rates of brain tumors (glioma) in the United States are inconsistent with the results of Lennart Hardell’s group in Sweden. The NCI team, led by Mark Little, does allow that “the U.S. data could be consistent with the modest excess risks in the Interphone study.’’

The latest update of the Danish cell phone-cancer study is being touted as the biggest and best ever. It shows "no link between mobile phone use and [brain] tumors," according to the press release.

Don't believe a word of it.

On October 20, the British Medical Journal released the third installment of the Danish Cancer Society's cohort study, which has been tracking some 400,000 mobile phones subscribers since the 1980s. The whole enterprise has been dogged by controversy and political suspicions since the first results were published ten years ago.

The Interphone results on acoustic neuroma (AN) are —finally— out. As in the Interphone analysis of brain tumors, there does appear to be a higher risk among the heaviest users of cell phones. Yet, as before, the results are uncertain and open to alternative explanations.

A mother's exposure to weak power-frequency magnetic fields during pregnancy substantially increases the chances her child will develop asthma, according to a new study by De-Kun Li and coworkers at Kaiser Permanente in Oakland, CA. An average magnetic field exposure of just 2 mG (0.2 µT) during pregnancy more than triples the child's risk of getting asthma by the age of 13, they report in a paper released today by the Archives of Pediatrics & Adolescent Medicine, a publication of the American Medical Association (AMA).