WIFI is actually a small local area network, mainly used for data transmission. As a wireless device, WiFi has a transmitter, and electromagnetic radiation will be generated around the transmitter. Usually at home, wireless routers are used to apply WIFI networks.
Second, how big is the radiation of WIFI?
Experts say that the intensity of radiation is inversely proportional to the distance, that is, the greater the distance between the human body and the wireless router at home, the smaller the received WIFI radiation. The common wireless router in our home works at 30-500 MW. According to experts' test, the power density at 1 cm near the WIFI antenna is 9. 1 microwatt /cm2.
According to the upper limit of safety set by the International Commission on Non-ionizing Radiation, the safe radiation range of human body is 10W/m2. The electromagnetic wave band used by WIFI wireless Internet access is generally 2.4GHz to 5GHz, which is close to the RF electromagnetic wave band used by mobile phones. At present, the radiation value of WIFI is usually at the level of milliwatts per square meter, which is far below the safety upper limit of per square meter 10 watt stipulated by the International Commission on Non-ionizing Radiation.
3. Does 3.WIFI radiation affect pregnant women?
In nature, there are two kinds of radiation. One is high-energy ionizing radiation, such as hospital X-rays or nuclear radiation, which is harmful to human body. Therefore, expectant mothers during pregnancy must avoid exposure to radiation such as X-rays, but under normal circumstances, they will not be exposed to it in daily life; One is non-ionizing radiation. The most common electromagnetic radiation in life is non-ionizing radiation, such as microwave ovens, refrigerators, mobile phones, computers and WIFI radiation that people use every day. According to the current influence of electromagnetic radiation on human body, it will take hundreds of years to cause harm to human body as long as it is continuously exposed to this radiation environment for 24 hours. At present, according to the tests of relevant experts and clinical medical research, there is no evidence that daily non-ionizing radiation (that is, radiation emitted by electrical appliances in daily life) will increase the abortion rate of pregnant women and the fetal malformation rate, and will not lead to low birth weight of newborns. Therefore, expectant mothers during pregnancy do not need to panic excessively, and WIFI radiation will do harm to themselves.
Fourth, how do pregnant women correctly prevent radiation?
1. Keep the wireless router away from the bedside.
Although WIFI has little impact on human body, the wireless router at home should be installed as far away from people as possible, not close to the bedside or on the desk, and expectant mothers should try to avoid close contact for a long time.
2. Purchase electronic products through formal channels.
As we just introduced, electronic equipment in life, such as microwave ovens, refrigerators, televisions, mobile phones, routers, etc., will produce non-ionizing radiation. Both internationally and domestically, there are strict requirements and monitoring for electronic products. Therefore, expectant mothers must buy products produced by regular companies when purchasing electronic equipment, especially wireless routers, so as to ensure safety.
For radioactive materials in life, expectant mothers can adopt the principle of "radiation protection and safety optimization". For example, answer the phone with a mobile phone, use a long-line earphone, don't put your mobile phone on the bed, and turn off the wireless router at night. For pregnant expectant mothers, it is inevitable to worry about the baby's health, but if expectant mothers are overly anxious, it will really affect the fetus. The most important thing is to keep a happy mood and breathe more fresh air.