This is similar to the "radiation" and "cancer" claims that were popular a few years ago when 5G was first introduced, and it seems that a lot of people still have deep misconceptions about it, even around the world.
Is the "5G health hazard" nonsense or something to be taken lightly, and what is the evidence that 5G is harmful to health? To answer this question, it's important to first clarify some basic concepts about 5G.
A 5G network, like its predecessors 4G, 3G, and 2G cellular technologies, relies on radio waves in the electromagnetic spectrum to transmit signals from a cell tower or power pole to your phone. Compared to 4G, 5G has higher frequencies, allowing more devices to be networked and faster internet speeds. The high-frequency waves travel shorter distances, so 5G coverage requires the construction of denser towers. But because more towers are needed, each one produces less radiation than 4G.
To clarify the health concerns surrounding 5G, it's also important to know the difference between ionizing radiation and non-ionizing radiation in the electromagnetic spectrum. The higher the frequency of an electromagnetic wave, the more energy it has. In other words, the more it radiates. The radiation produced by electromagnetic waves is electromagnetic radiation. However, depending on the frequency of the electromagnetic wave, electromagnetic radiation is divided into ionizing radiation and non-ionizing radiation.
The cell phones we use and the radio frequency signals emitted by Wi-Fi at home are all in the "non-ionizing radiation" range of the electromagnetic spectrum, which, in the words of British physicist and cancer researcher David Grimes, "is not enough energy to break down DNA and cause cancer. is not enough to break down DNA and cause cancerous damage."
Free radiation, which is at the upper end of the electromagnetic spectrum, is said to be harmful because it separates electrons from the basic molecules, further attacking DNA and causing tumors and cancer. Ultraviolet rays from sunlight are harmful radiation and can cause skin cancer. When you go to the hospital for an X-ray, the doctor has to hide in a small room next to it with special protective materials to take the film remotely, because X-rays are also classified as free radiation. In addition gamma rays, for example, are also harmful radiation.
Grimms said it is understandable that people are concerned about the health effects of radiation, "but it is very important that people should be aware that the energy of radio waves is much lower than the visible light that we are exposed to every day". In other words, if you're worried about the health effects of using a 5G phone, just stay in a dark room all day.
The more communication base stations there are, the better the cell phone calls will be, and the less electromagnetic radiation will be generated between the cell phone and the base station instead. In fact, the amount of radiation from the base station is not as great as the radiation from a room full of appliances.
The 5G network is faster than 4G, not by enhancing the signaling power of the communication base station, but by expanding the transmission bandwidth. 5G base station and 4G base station are the same are less than 40 microwatts / square centimeter.
The greater the number of communication base stations, the better the cell phone calls, and the less electromagnetic radiation generated by the cell phone and base station. Because, there is an intelligent control mechanism between the cell phone and the base station, which will dynamically adjust the call channel and electromagnetic radiation power between each other.
Experiments have shown that when a cell phone has a signal left, the amount of radiation from a 1-minute call is equivalent to the amount of radiation from the base station for 1 year. Moreover, the denser the base station coverage, the better the cell phone signal reception, the user is subject to electromagnetic radiation will be smaller. So, with more and more communication base stations, the signal is better and the radiation is smaller.
Communication base station radiation belongs to the "black light", the distance is not necessarily close to the radiation. Many people believe that the closer the radiation from the communication base station, the greater, and therefore opposed to the construction of communication base stations in their own neighborhoods or on the roof of the building. In fact, the communication base station of electromagnetic waves mainly to the horizontal direction of emission, in the vertical direction of the attenuation is obvious. Therefore, the power density is often minimized right below the base station.
In addition, the intensity of electromagnetic radiation is inversely proportional to the square of the distance. That is, the higher the transmitting base station, the lower the impact on the human body.
The World Health Organization (WHO) and the International Agency for Research on Cancer (IARC) classify radiofrequency (RF) radiation (signals from cell phones are RF) as possibly carcinogenic. But the reasons why WHO and IARC put RF radiation in the category of possibly carcinogenic are not mentioned by the critics of 5G, which, as an inevitable trend in the world's technological development, is not going to be stopped by these rumors.