If you've ever wandered through a city and spotted tiny 5G cell towers on the poles of street lights. They look like small boxes however they're actually sending wireless signals from mobile providers to your phone.

They are replacing the larger, purpose-built cell towers. While they're not as noticeable but they can still cause problems for people.
The of the FCC's Radiation Exposure Thresholds
The FCC's Radiation Exposure Thresholds establish the safe distance that an individual can be exposed to electromagnetic radiation from wireless devices. The limits for exposure are based on research that prove that electromagnetic energy could cause harm to health.
The rate of absorption called the specific absorption rate (SAR) is a measure of the radiofrequency energy taken up by tissues. It's typically 1.6 milliwatts per kilogram averaged over one kilogram of tissue.
But, since 5g operates at higher frequencies and has the potential to increase the intensity of energy on the skin and other directly-exposed body areas. This could result in many possible harms, like the appearance of skin conditions such as dermatitis and cataracts and skin cancer.
Due to the possible negative effects of 5G radiation, PSU has chosen to create a general power density limit of 4 mW/cm2 measured across 1 centimeter, but not to exceed 30 minutes, for all 5G services running at 3000 GHz. This localized limit is in accordance with the maximum SAR spatial-average of 1.6 W/kg, averaged over one grams of tissues at six GHz.
The FCC's Maximum Exposure Thresholds
If you've ever used a mobile phone, you probably know that a safe range from the tower should be at least 400 meters away. This is due to the power of the transmission of cell towers increases drastically the farther you are from it.
While this sounds like a good idea, the reality is that people living in close proximity to towers could be more susceptible to health problems. For instance, a study conducted in 2014 in India discovered that people who lived within 50 meters of cell towers had much more health problems than those who lived farther far from antennas.
But, the study showed that residents who moved to areas that were further from cell towers noticed their symptoms improve within a few days. Another study has shown that exposure to high amounts of electromagnetic field radiofrequency (EMFs) can lead to brain tumors, cancer, and other health problems.
This is due to the fact that radiofrequency radiation, which is used in wireless communications, may penetrate the human body's outer layer of skin. This is important to understand because the skin acts as a barrier to protect against injury to the body, infection by pathogenic microorganisms, and entry of toxic substances. Additionally, it is the most important organ of the human body. It is accountable for keeping the integrity of the other organs.
The FCC's Minimum Exposure Thresholds for the Minimum Exposure
The FCC's Minimum Exposure Thresholds are based on several assumptions that are not supported by scientific research. This includes the false assumption that short-term exposures to RF radiation are safe because of the minimal radiation penetration in the human body (i.e., tissue heating).

The assumption also ignores the greater penetration of ELF elements of modulated radio signals and the consequences of brief bursts of heat caused by RF pulses. These assumptions do not correspond with current knowledge of the biological consequences of RF radiation. Therefore they should not be used for health protective exposure standards.
Additionally there is what is a safe distance from a 5g cell tower that both ICNIRP and FCC are limiting their maximum limit of exposure to the local SARs, based on the maximum spatial specific absorption rate (psSAR) that is not a reliable dosimetric instrument to determine the degree of exposure to RF radiation. In particular the psSAR tool is not accurate when frequencies exceed 6 GHz. Additionally, psSAR hasn't been evaluated for RF radiation that is exposed to other agents of the environment such as sunlight. The interactions of RF radiations with different environmental agents may result in antagonistic or synergistic effects. This could result in an increased risk of adverse health consequences. For instance, exposure to RF radiation and sunlight could raise the chance of skin cancer and exacerbate other skin conditions like acne.