If you've ever walked through a town and spotted tiny mini 5G cell towers placed on poles for street lighting. They look like small boxes however they're actually sending wireless signals from mobile providers to your mobile.
The smaller ones are being replaced by larger specially-designed cell towers. Although they're not as visible however, they could cause issues for users.
It is the Federal Communications Commission's Radiation Exposure Thresholds
The FCC's Radiation Exposure Thresholds establish the maximum amount of time one can expose to electromagnetic energy from wireless devices. The exposure limits are based on research that prove that electromagnetic energy could be harmful to health.
The specific absorption rate (SAR) is an indication of the radiofrequency energy that is absorbed by tissue. It is typically 1.6 milliwatts per kilogram calculated over one gram of tissue.
However, because 5g transmits at higher frequencies, it has the potential to increase the intensity of energy on the skin and other exposed body areas. This could lead to various possible harms, such as an increase in development of skin diseases like dermatitis, cataracts, and skin cancer.
Due to the potential for severe effects of 5g radiation, PSU has chosen to create a general power density limit of 4 mW/cm2 averaged across 1 centimeter, but not exceeding 30 minutes for all 5G services running at 3000 GHz. This localized limit is consistent with the maximum spatial-average SAR of 1.6 W/kg averaged over 1 g of tissue at 6 GHz.
The FCC's Maximum Exposure Thresholds for Maximum Exposure

If you've ever used a cell phone, you probably know that the safest location from the tower should be at least 400 meters. This is because the transmitting power of cell towers increases drastically the further your location from the tower.
While it sounds like something that's good however, those living close to towers may actually be more vulnerable to health problems. For example, a study from 2014 in India found that residents who lived within 50 meters of cell towers had significantly more health complaints than those who were away from the antennas.
However, this study also found that people who moved to areas further away from cell towers noticed their symptoms return to normal within a few days. Another study has demonstrated that exposure to extreme amounts of electromagnetic field radiofrequency (EMFs) can lead to brain tumors, cancer and other health issues.
This is because RF radiation, which is used in wireless communication, can be absorbed by the body's outer layer, the skin. It is vital to be aware of this since the skin functions as a protective barrier against mechanical injury, infection caused by pathogenic microorganisms and entry of toxic substances. The skin is the most important organ of the human body and is accountable for keeping the integrity of the other organs.
what is a safe distance from a cell tower on a variety of assumptions that are not supported by evidence from science. These include the erroneous assumption that exposures to RF radiation are safe because of the minimal penetration into the body (i.e. thermal heating of tissue).
safe distance from cell tower does not take into account the greater penetration of ELF components of modulated RF signals, as well as the effects of short bursts of heat generated by RF waves that are pulsed. These assumptions do not correspond with current knowledge of the biological effects of RF radiation. Therefore, they should not be relied upon for health-protection exposure guidelines.
In addition to that, ICNIRP and FCC restrict their limit of exposure to the local SARs, based on the peak frequency of absorption (psSAR) that is not a sufficient dosimetric tool to determine the degree of exposure to RF radiation. In what is a safe distance from a 5g cell tower is not accurate for frequencies that exceed 6 GHz. In addition, psSAR is not been tested for RF radiation that is exposed to other environmental agents such like sunlight. The interactions of RF radiation with other environmental agents could result in antagonistic or synergistic impacts. This could result in an increased risk of negative health effects. For instance, exposure to RF radiation along with exposure to sunlight can raise the chance of developing skin cancer, and may also exacerbate other skin diseases such as acne.