In life, we often hear people say, 'WiFi has radiation, turn it off before going to bed', 'mobile phone has radiation, and you can't put it at the head of the bed when sleeping', 'household appliances have radiation, and you should keep a distance when using', 'base station has radiation, and people can't live nearby'. Are these statements true? Are these radiation really so terrible that it will seriously threaten our health? This article will tell you the truth about radiation.
WiFi router has radiation and must be turned off when sleeping at night?
WiFi router is actually innocent, because the radiation generated by WiFi router is "non ionizing radiation", and the radiation dose is very low, which can be almost ignored.
According to the regulations of the authority, the safe exposure limit of radiation to different parts of the human body is not higher than 1.6 w / kg. The study found that the "radiation value" caused by WiFi signal to human head is only 0.0057 w / kg, which is 1 / 280 of the limited safety value!
Do you have to wash your face after using the computer?
As mentioned earlier, the computer has radiation, but it does no harm to people, so washing your face is useless for "radiation protection". The so-called "cleaning and radiation protection" refers to the response methods in case of atomic bomb explosion or other nuclear leakage accidents. Because nuclear contaminated dust falling on the skin surface will cause harm to people, in this case, it is necessary to carry out whole-body "cleaning" to reduce radioactive damage.
Can the cell with communication base station radiate too much?
In fact, a cell with a communication base station can live, because although the base station has "electromagnetic radiation", it is harmless to people.
China has strict requirements for electromagnetic radiation management of base stations. The current national standard electromagnetic environment control limit is far lower than the international standard limit. Take the GSM base station with 900MHz frequency as an example. The standard limit in China is 40 MW / cm2, while the standard in European developed countries (450 MW / cm2) is more than ten times that of us!
Therefore, there is no need to worry about the radiation of the base station.
Anyway, if you see someone say how the radiation around you is, just smile.