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EHT was just asked, ” What published research shows the low radiation levels from cell antennas could be harmful?” EHT decided to summarize a short list of studies and share our answer with the public. 

Peer Reviewed Published Science on Radiation from Wireless Antennas

“Small cells” are microwave antennas (basically shorter cell towers) rapidly being installed in public areas on utility poles and street lights in front of homes, parks and schools. Just like cell towers, these wireless antennas generate and emit microwave radiofrequency (RF) radiation to transmit 2G, 3G and 4G network signals. Companies soon plan to add a new technology called 5G which will use current 4G technology plus even higher frequencies. The higher frequencies include millimeter-wave emissions that were not previously released into public areas.

Companies state that these 4G and 5G antennas will increase the wireless radiation levels in the area so much that they are working to loosen several governments’ radiation limits in order to roll it out. More than 240 scientists published an appeal to the United Nations to reduce public exposure and called for a moratorium on 5G citing “established” adverse biological effects of RF radiation.

Published Research Documents Adverse Effects of RF Exposure

Cancer epidemiology update, following the 2011 IARC evaluation of radiofrequency electromagnetic fields is a comprehensive research review of RF effects in human and animal research. The review concludes that scientific evidence is now adequate to conclude radiofrequency radiation is carcinogenic to humans (Miller 2018). Several previously published studies also concluded that RF can “cause” cancer, for example, Hardell 2017, Atzman 2016 and Peleg 2018.

The US National Toxicology Program (NTP) Study on Cell Phone Radiation found “clear evidence” of cancer, heart damage and DNA damage in a $30-million study designed to test the basis for federal safety limits (NIEHS). The heart and brain cancers found in the NTP rats are the same cell type as tumors that researchers have found to be increased in humans who have used use cell phones for over 10 years. Thus, researchers say this animal evidence confirms the human evidence (Hardell 2019.)

The Ramazzini Institute (RI) Study on Base Station RF  was another large scale rat study that also found increases in the same heart cancers as the NTP study found—yet the Ramazzini rats were exposed to much lower levels of RF than the NTP rats. In fact, all the RI Ramazzini radiation exposures were below FCC limits, as the study was specifically designed to test the safety of RF limits for cell tower/base stations (Falconi 2018.)

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Tumor promotion by exposure to radiofrequency electromagnetic fields below exposure limits for humans” is a replication study that used very, very low RF exposures (lower than the Ramazzini and NTP study) and combined the RF with a known carcinogen. Researchers found elevated lymphoma and significantly higher numbers of tumors in the lungs and livers in the animals exposed to both RF and the carcinogen, leading researchers to state that previous research (Tillman 2010) was confirmed and that “our results show that electromagnetic fields obviously enhance the growth of tumors” (Lerchl 2015).

5G Wireless Expansion: Public Health and Environmental Implications is a 5G research review that documents the range of reported adverse effects of RF and millimeter waves—effects range from cancer to bacteria growth changes to DNA damage. The study concludes that “a moratorium on the deployment of 5G is warranted” and “the addition of this added high frequency 5G radiation to an already complex mix of lower frequencies, will contribute to a negative public health outcome … from both physical and mental health perspectives” (Russell 2018).

The Human Skin as a Sub-THz Receiver – Does 5G Pose a Danger to It or Not? and “The Modeling of the Absorbance of Sub-THz Radiation by Human Skin are two papers by physicists presenting research that found higher 5G frequencies are intensely absorbed into human sweat ducts (in skin), at much higher absorption levels than other parts of our skin’s tissues (Betzalel 2017, Betzalel 2018). The researchers conclude, “we are raising a warning flag against the unrestricted use of sub-THz technologies for communication, before the possible consequences for public health are explored.”

Exposure of Insects to Radio-Frequency Electromagnetic Fields from 2 to 120 GHz” published in Scientific Reports is the first study to investigate how insects (including the Western honeybee) absorb the higher frequencies (2 GHz to 120 GHz) to be used in the 4G/5G rollout. The scientific simulations showed increases in absorbed power between 3% to 370% when the insects were exposed to the frequencies. Researchers concluded, “This could lead to changes in insect behaviour, physiology, and morphology over time….”

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“A review of the ecological effects of RF-EMFreviewed 113 studies finding RF-EMF had a significant effect on birds, insects, other vertebrates, other organisms and plants in 70% of the studies (Cucurachi 2013). Development and reproduction in birds and insects were the most strongly affected. As an example of the several studies on wildlife impacts, a study focusing on RF from antennas found increased sperm abnormalities in mice exposed to RF from GSM antennas (Otitoloju 2010). Studies on bees have found behavioral effects (Kumar 2011, Favre 2011), disrupted navigation Goldsworthy 2009, Sainudeen 2011, Kimmel et al. 2007) decreasing egg laying rate (Sharma and Kumar, 2010) and reduced colony strength (Sharma and Kumar, 2010, Harst et al. 2006). Research has also found a high level of damage to trees from antenna radiation (Waldmann-Selsam 2016).

Towards 5G communication systems: Are there health implications?is a research review that details how research has found that millimeter waves can alter gene expression, promote cellular proliferation and synthesis of proteins linked with oxidative stress, inflammatory and metabolic processes.” The researchers conclude, “available findings seem sufficient to demonstrate the existence of biomedical effects, to invoke the precautionary principle” (Di Ciaula 2018).  

Research on People Near Cell Towers Links Exposure to Adverse Effects

The Impact of radiofrequency radiation on DNA damage and antioxidants in peripheral blood lymphocytes of humans residing in the vicinity of mobile phone base station” is a research study that compared people living close (within 80 meters) and far (more than 300 meters away) from cellular antennas and found that the people living closer had several significant changes in their blood predictive of cancer development (Zothansiama 2017). Researchers controlled for various demographics, including the use of microwaves and wireless in the homes.   

Mortality by neoplasia and cellular telephone base stations” is a 10 year study by the Belo Horizonte Brazil Health Department and several universities in Brazil that found an elevated relative risk of cancer mortality at residential distances of 500 meters or less from cell installations (Dode 2011). Shortly after this study was published, the city prosecutor sued several cell phone companies and requested that almost half of the city’s antennas be removed. Many antennas were dismantled.

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A 2019 study of students in schools near cell towers found their higher RF exposure was associated with impacts on motor skills, memory and attention (Meo 2019). Examples of other effects linked to cell towers in research studies include neuropsychiatric problems, elevated diabetes, headaches, sleep problems and genetic damage. Such research continues to accumulate after the 2010 landmark review study on 56 studies that reported biological effects found at very low intensities, including impacts on reproduction, permeability of the blood-brain barrier, behavior, cellular and metabolic changes, and increases in cancer risk (Lai and Levitt 2010).  

Cellular Antennas Create Measurable Increases in Radiation in the Area

A 2018 article published in The Lancet Planetary Health points to unprecedented increasing RF exposures (Bandara and Carpenter 2018). Another key finding from Zothansiama 2017 was that homes closer to antennas had measurably higher radiation levels—adding to the documentation that antennas increase RF levels. An Australian study also found that children in kindergartens with nearby antenna installations had nearly three-and-a-half times higher RF exposures than children with installations further away (more than 300 meters (Bhatt 2016).  

A 2018 multi-country study that measured RF in several countries found that cell phone tower radiation is the dominant contributor to RF exposure in most outdoor areas exposure in urban areas was higher and that exposure has drastically increased. As an example, the measurements the researchers tool in Los Angeles, USA were 70 times higher than the US EPA estimate 40 years ago.

Note: EHT

Peer Reviewed Published Science on Radiation from 4G/5G “Small” Cell Wireless Antennas