The health risks associated with high Specific Absorption Rate (SAR) levels, which measure the rate at which the body absorbs radiofrequency (RF) energy, have been a topic of study. The Federal Communications Commission (FCC) sets a maximum SAR limit of 1.6 W/kg for cell phones[4]. However, there is ongoing research on the potential effects of exposure to SARs above 2 W/kg. Some studies have suggested potential adverse health effects, including DNA damage, gene and protein expression, and breakdown of the blood-brain barrier from exposure to RF radiation[3]. While the SAR limit is set to avoid thermal effects, non-thermal biological effects from RF exposure have also been a focus of research[3]. It’s important to adhere to SAR guidelines to minimize potential health risks associated with high SAR levels.
The symptoms of exposure to high Specific Absorption Rate (SAR) levels, which measure the rate at which the body absorbs radiofrequency (RF) energy, are a subject of ongoing research. While the SAR limit is set to avoid thermal effects, some studies have suggested potential adverse health effects, including DNA damage, gene and protein expression, and breakdown of the blood-brain barrier from exposure to RF radiation[1]. Acute exposure to very high levels of radiation, known as acute radiation syndrome (ARS) or “radiation sickness,” can cause symptoms such as nausea, vomiting, headache, and diarrhea[8]. Additionally, skin damage, including swelling, itching, and redness, can occur within a few hours after exposure to high levels of radiation[6][7]. It’s important to note that the symptoms of exposure to high SAR levels are still being studied, and more research is needed to fully understand their potential impact on health.
Citations:
[1] https://www.anses.fr/en/system/files/AP2017SA0229EN.pdf
[2] https://pubmed.ncbi.nlm.nih.gov/25574664/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6701402/
[4] https://www.fcc.gov/consumers/guides/specific-absorption-rate-sar-cell-phones-what-it-means-you
[5] https://www.fcc.gov/engineering-technology/electromagnetic-compatibility-division/radio-frequency-safety/faq/rf-safety
[6] https://www.cdc.gov/nceh/radiation/emergencies/ars.htm
[7] https://www.cdc.gov/nceh/radiation/emergencies/arsphysicianfactsheet.htm
[8] https://www.epa.gov/radiation/radiation-health-effects
