Argues that public exposure limits are protective, criticizes EMF advocacy claims, and discusses hypersen…

Online businesses run websites selling fear of EMF. Googling “electrosmog” reveals many such revenue generators, all of which make baseless claims of alleged health effects and feature a prominent “DONATE” button. They do real harm by distracting from actual dangers (e.g., global warming). These sites most often focus on “opinion” studies with no dosimetry (no measurement of actual EMF exposure, just self-reported recollection of subjective proximity to devices) and no clinical assessment of very common symptoms they attribute without evidence to EMF. Claims of health effects with no actual dose measurements or clinical assessment is not credible. Some people believe they are “hypersensitive” to EMFs, but there’s no evidence to back it up; Rubin, G. James; Hillert, Lena; Nieto-Hernandez, Rosa; van Rongen, Eric; Oftedal, Gunnhild (December 2011). "Do people with idiopathic environmental intolerance attributed to electromagnetic fields display physiological effects when exposed to electromagnetic fields?". Bioelectromagnetics. 32 (8): 593–609). Bioeffects from exposure to very high levels of microwave radiation are well understood (tissue heats up – basis of microwave cooking). Levels to which members of the public are exposed are far too low to have any effects. The recognized exposure limits adequately protect the public. Actual exposures are well below the exposure limits. See e.g., Bushberg JT and Butcher MJ. Measurement of ambient millimeter wave exposures levels around small base stations (January 2025). Health Physics 128(2):1-7. Those running “electrosmog” sites point to the “NTP study” as a scientific basis of their claims that cell phone radiation causes cancer. They refer to the 2018 National Toxicology Program Report on mice [https://ntp.niehs.nih.gov/go/tr596] and rats [https://ntp.niehs.nih.gov/go/tr595] exposed to RF used by cell phones. Rodents were exposed to levels near the public exposure limits for 9 hours a day, 7 days a week, for 2 years. These studies showed no statistically significant effects on female mice, male mice, or female rats, and a HUGE increase in life span for the exposed male rats. Thermal effects can explain the significant effects in the rats. See e.g., Kuhne J, Schmidt JA, Geschwentner D, Pophof B, Ziegelberger G. Thermoregulatory Stress as Potential Mediating Factor in the NTP Cell Phone Tumor Study. Bioelectromagnetics. 2020 Sep;41(6):471-479 [https://pmc.ncbi.nlm.nih.gov/articles/PMC7522680/]. The NTP study also found a small number of rare heart tumors in the warmed male rats, but not in the mice or female rats. The NTP researchers did not control for warming the male rats (i.e., the controls were not heated the way the exposed rats were), so the most obvious explanation for the tiny number of excess heart tumors is that the exposed male rats heated up more than the mice or female rats. The study’s own peer reviewers noted “…panelists agreed that information to specifically rule out a thermal or non-thermal effect was insufficient.” (NTP TR595 p. 420). A review of the NTP study by internationally-recognized scientific experts on RF effects noted “…substantial limitations preclude conclusions being drawn concerning RF EMFs and carcinogenesis” and “…a preponderance of reported effects in the male rats, whose body core temperature would have increased more than either the female rats or either male or female mice (due to their smaller surface area-to-mass ratio), which would have put them under greater metabolic stress due to their greater thermoregulatory requirements.” ICNIRP Note on recent animal carcinogenesis studies (2018) [https://www.icnirp.org/cms/upload/publications/ICNIRPnote2018.pdf] John Bucher, the lead writer on the NTP report, noted that he is not changing his cellphone use or asking his family to, and that the findings of the rare nerve-tissue tumor found in the hearts of male rats does not mean humans should be worried. [https://learningenglish.voanews.com/a/health-lifestyles-researchers-say-no-cancer-from-cellphone-use/4244699.html] Far from being clear evidence, the NTP study shows no effect on mice and most significantly a huge increase in male rat lifespan. The tiny number of heart tumors in the exposed rats could most rationally be explained by tissue heating. Electrosmog sites claim cell phones cause cancer and point to the International Agency for Research on Cancer (IARC) 2011 classification of radiofrequency as “possibly carcinogenic” [https://www.iarc.who.int/wp-content/uploads/2018/07/pr208_E.pdf], without mentioning that IARC’s “possibly” category has the lowest certainty of any IARC rating (below “probable” and “known” carcinogen categories), and that the “possible” rating includes things like aloe vera and ginkgo biloba. See attached file for full response