Electromagnetic radiation pollution is also called electronic fog pollution. High-voltage lines, substations, radio stations, TV stations, radar stations, electromagnetic wave towers, electronic instruments, medical equipment, office automation equipment, microwave ovens, radios, televisions, mobile phones and other household appliances will all produce electromagnetic waves with different frequencies when they work. These electromagnetic waves are colorless, odorless and invisible, and can penetrate any substance including the human body, causing pollution to the human body. Long-term exposure to radiation doses that exceed the safety prescribed by the state will kill or kill cells in the body in a large area, leading to pathological changes. The research on the harm of electromagnetic radiation to human body has been carried out for many years at home and abroad, and most scholars believe that electromagnetic radiation is potentially harmful to human body. Director Song said that in recent years, there have been many reports about the harm of electromagnetic radiation at home and abroad, and experts have summarized six aspects: First, it causes childhood leukemia. Long-term exposure to high electromagnetic radiation will change blood, lymph and cell protoplasm; Second, induce cancer and accelerate the proliferation of cancer cells in the human body. Electromagnetic radiation pollution will affect the circulatory system, immunity, reproduction and metabolic functions of human body, seriously induce cancer and accelerate the proliferation of human cancer cells; Third, it affects people's reproductive system. Male sperm quality decreased, pregnant women spontaneously aborted, fetal malformation; Fourth, it leads to children's intellectual disability; Fifth, it affects people's cardiovascular system. It is characterized by palpitation, insomnia, menstrual disorder, bradycardia, decreased cardiac output, irregular sinus heart rate, leukopenia and decreased immune function of some women. Sixth, it has a bad influence on people's visual system. Eyes belong to the sensitive organs of human body to electromagnetic radiation. Excessive electromagnetic radiation can lead to vision loss and cataracts. Residents can't know the electromagnetic radiation pollution of their rooms when buying a house. Therefore, relevant experts remind real estate developers to determine the electromagnetic radiation environmental index of the location before building residential areas. So, how to prevent and reduce indoor electromagnetic radiation pollution? Remind the following points: First, pay attention to the layout of indoor office and household appliances, and don't put them together. Especially some household appliances that are easy to generate electromagnetic waves, such as radios, televisions, computers, refrigerators, etc. , are not easy to put in the bedroom; Second, pay attention to the use time of office and household appliances. Try to avoid operating various electrical appliances, office equipment and mobile phones for a long time, and avoid using various office and household appliances at the same time. The electromagnetic radiation released at the instant when the mobile phone is turned on is the largest, and the head is far away from the antenna of the mobile phone. It is best to use a separate earphone and microphone to answer it. It is best to install a computer radiation screen made of lead glass on the computer; Third, keep the distance between human body and office and household appliances. The distance between color TV and fluorescent lamp should be 4-5 meters, and the distance between fluorescent lamps should be 2-3 meters. After the microwave oven is turned on, it should be at least 1 meter away. Fourth, people who live and work near high-voltage lines, substations, radio stations, TV stations, radar stations and electromagnetic wave transmission towers, people who often use electronic instruments, medical equipment and office automation equipment, people who live in modern electrical automation environment, patients wearing pacemakers, pregnant women, children, the elderly and patients living in the above environment should pay special attention to the environmental indicators of electromagnetic radiation pollution. If the electromagnetic wave pollution in the indoor environment is relatively high, in addition, Director Song reminds consumers that when purchasing household appliances and office automation equipment, they must buy qualified products produced by regular enterprises, because the electromagnetic radiation value of qualified products must be within the safety range stipulated by the state. Electromagnetic wave pollution, the wide application of protective electronic technology and the increasing number of household appliances make people more and more worried about electromagnetic wave pollution generated by electrical appliances. May 7 1999 China Environmental Protection Bureau informed the press that electromagnetic radiation environmental pollution does exist, and the state is drawing up electromagnetic radiation environmental pollution sources for environmental impact assessment. China Environmental Protection Bureau decided to establish archives and databases of key pollution sources, establish and improve the examination and approval system of electromagnetic radiation construction projects, keep electromagnetic pollution sources away from densely populated areas, and bring electromagnetic pollution control into the daily environmental protection work track. Most people only pay attention to the harm of electromagnetic radiation produced by large and medium-sized launching equipment, but in fact, the electromagnetic radiation produced by modern office buildings, new office equipment and household appliances is more prominent in the living room. Experts call for effective protective measures when sitting in front of a computer screen for a long time. Operators should wear radiation protection coats, vests, aprons and other series of articles. The video display terminal must be equipped with a fluorescent screen protection net, and you can also drink radiation-proof tea. In fact, electromagnetic waves, like air and water resources, will only cause harm if people plan and use them improperly. A certain amount of radiation is beneficial to the human body. Medical methods such as baking electricity and physical therapy all use appropriate electromagnetic waves to achieve the purpose of treating diseases and keeping fit. We should have a correct understanding of electromagnetic radiation and scientific protection.