Articles on electromagnetic radiation pollution in life are for researchers to use. Abstract: Electromagnetic radiation pollution in life and its prevention. Nowadays we work and live in the E era. When you enjoy the convenience and comfort brought by technology every day, , have you ever thought that electromagnetic waves with different frequencies unknowingly form a heavy pollution source called "electronic fog" around us, which cannot be seen, heard or smelled? , cannot be touched, penetrate and "cut" the human body at will without knowing it, just like a "ghost", which is hard to guard against. There are many types of electronic products in life, which are very closely related to our life and work. , and we have been in contact with them for a relatively long time. Therefore, the impact of electromagnetic radiation produced by these electronic products on human health has attracted more and more attention. So, what is electromagnetic radiation pollution? How does it affect the human body? What are they? How to prevent electromagnetic radiation pollution? Keywords Electromagnetic radiation pollution Electromagnetic radiation pollution mechanism Electromagnetic radiation pollution prevention In 1831, the British scientist Faraday applied the method of electromagnetic induction to cause the conductor in the magnetic field to generate an induced current under certain conditions. This is 19 One of the greatest discoveries of the century, the completion of the world's first power station marked the beginning of the era of application of electromagnetic radiation. More than a hundred years ago, electromagnetic radiation has penetrated into all aspects of human life, and today it has entered An era of high utilization of electromagnetic radiation. However, science has always been a double-edged sword, and the progress of the times often comes at a certain price. This antinomy has been verified many times in history. People are fully enjoying electromagnetic While radiation brings convenience and comfort, its negative effects are increasingly felt. For example, various types of office automation equipment, mobile communication equipment, and household appliances have rapidly entered our lives, improving our work efficiency and enriching our lives. Spiritual and material life. While our lives have never been more convenient, the electromagnetic radiation generated by the high-tech products we use has become another indoor environmental pollution after indoor air pollution, radioactive pollution and noise pollution. Especially In recent years, domestic and foreign media have repeatedly reported that electromagnetic radiation is harmful to the human body, which has made people feel the threat from electromagnetic radiation, so that many people feel an inexplicable hatred and fear when it is mentioned. 1 Electromagnetic Radiation pollution: The so-called electromagnetic radiation pollution refers to the radiation generated during the operation of high-voltage electricity, substations, radio stations, television stations, radar stations, electromagnetic wave transmission towers, electronic instruments, medical equipment, automation equipment, microwave ovens, radios, televisions, computers, mobile phones, etc. Electromagnetic waves of various wavelengths and frequencies. If the human body is exposed to electromagnetic radiation exceeding the safe electromagnetic radiation dose for a long time, cells will be damaged or killed. With the continuous enrichment of information technology products, electromagnetic radiation pollution has become a hazard to people's work. One of the important types of radiation pollution in daily life. On the other hand, information technology relies on electromagnetic waves, which are extremely easy to be interfered and destroyed, which will bring about the infringement of some junk information and harmful information. This is also a cause of electromagnetic radiation pollution. On the one hand, electromagnetic radiation can cause so-called "electromagnetic pollution". People also call it electronic "smog" or electronic waste, which is a harmful phenomenon caused by the intensity of electromagnetic radiation exceeding the limit that the human body or the environment can bear. It is colorless, Odorless, invisible, traceless, without any feeling, it can penetrate a variety of substances including the human body and is everywhere. It is called "electronic waste" or "electronic radiation pollution" by scientists. Some experts say it is the second largest waste after air pollution. , the fourth pollution of water pollution and noise pollution. 2. The mechanism of electromagnetic radiation on the human body. The human body is a conductor and can absorb the energy of the electromagnetic field. Under the action of the electromagnetic field, the molecules of the human body will be oriented and arranged, and they will collide with each other during the molecular arrangement process. The magnetic field energy is converted into internal energy, causing thermal effects. The greater the intensity of the electromagnetic field, the more obvious the thermal effect; the higher the electromagnetic oscillation frequency, the more obvious the thermal effect, that is, the effect of electromagnetic radiation on the human body: microwave gt; ultra-short wave gt; short wave gt; medium wave
gt; long wave. And it interferes with the transmission of human bioelectric information. Scientific experiments have shown that the harm of electromagnetic radiation pollution to the human body mainly consists of two aspects-thermal effect and non-thermal effect. Thermal effect and non-thermal effect refer to electromagnetic waves. Penetrating the surface of the organism and directly "heating" the internal tissues of the body (just like heating food in a microwave oven), that is, the temperature of the material will change under the action of high-frequency electromagnetic waves. The heating effect of high-frequency electromagnetic waves will have an impact on the organism. , thus causing serious harm to the human body, leading to breast cancer, impotence, miscarriage, fetal malformations and other diseases. Non-pyrogenic effects Non-pyrogenic effects mainly refer to the harm of electromagnetic waves to the human autonomic nervous system, causing palpitations, hair loss, bradycardia , lowered blood pressure and women's menstrual disorders and other diseases. A typical experiment is like this: remove the cerebral cortex from the bodies of chickens and cats, and irradiate it with modulated ultra-high frequency and very high frequency electromagnetic waves. It is found that Calcium ions are precipitated. Calcium ions are an indispensable substance for information transmission, immune system work and cell reproduction in living organisms. Changes in its concentration will inevitably have an impact on living organisms. 3. Prevention of electromagnetic radiation pollution in life. Modern life is inseparable from everything. Start dealing with electronic equipment. Pollution sources that can produce electromagnetic radiation pollution are everywhere. Computers, printers, copiers, mobile phones, radio equipment, etc. all produce electromagnetic radiation waves that are harmful to the body; items related to daily life such as televisions, stereos, Washing machines, refrigerators, air conditioners, microwave ovens, etc. can all produce various amounts of electromagnetic interference. How do we protect ourselves? How can we prevent and reduce indoor electromagnetic radiation pollution in life? Experts from the Indoor Environment Monitoring Center of the China Interior Decoration Association remind Everyone should pay attention to the following points: When purchasing electronic products, you should pay attention to confirm whether the product has passed CCC certification (national safety certification for electronic electromagnetic compatibility); minimize the use of high-radiation products; try to use low-radiation products. Such as low-radiation TVs, microwave ovens, computers, etc.; try to use a sit-down phone to make calls, and rarely use a mobile phone to make calls. The electromagnetic radiation released by the mobile phone is the largest when it is connected. It is best to wait for one or two seconds after the ringing or between two rings. Listen, keep the distance between your head and the antenna of your mobile phone as far as possible when using it. Some people say that if you don’t buy appliances or just put them away and never use them again, pollution will disappear or be reduced. That’s good, but without them , our lives should go back to the hard times of the past. I’m afraid no one is willing to give up a good life and live a hard life. Learning more preventive measures is a realistic and feasible strategy. For example: Don’t place home appliances too much Concentrate to avoid exposing yourself to the risk of excessive radiation. In particular, some household appliances that are prone to produce electromagnetic waves, such as TVs, computers, refrigerators, radios, etc., are best not to be placed centrally in the bedroom. Avoid using household appliances for a long time. Electrical appliances, mobile phones, etc., and try to avoid using multiple home appliances at the same time. It is necessary to maintain a safe distance from home appliances. The farther the distance, the smaller the damage caused by electromagnetic waves. The safe distance for color TVs is about 5 times the width of the fluorescent screen, and for fluorescent lamps is 2 ~3 meters. After turning on the microwave oven, stay at least 1 meter away. Pregnant women and children should try to stay away from the microwave oven. When electrical appliances are suspended from use, it is best not to leave them in standby mode, because a weak electromagnetic field can be generated at this time, which will last for a long time. Generate radiation accumulation. Another trick is to eat. Eat more foods rich in vitamins A, C and protein such as carrots, bean sprouts, tomatoes, rape, kelp, cabbage, lean meat, animal liver, etc. to enhance the body's ability to resist electromagnetic radiation. People who live or work near high-voltage lines, radar stations, TV stations, and electromagnetic wave transmission towers and who wear pacemakers should be equipped with shielding protective clothing to block electromagnetic radiation. TVs, computers and other electrical equipment with display screens can be installed with electromagnetic radiation. Users can also wear radiation-proof glasses to protect the screen. The radiation generated by the display screen may cause dry skin, accelerate skin aging and even lead to skin cancer. Therefore, you should wash your face in time after use. Note the environmental index of electromagnetic radiation pollution. Relevant experts As a reminder, there are five types of people who should pay special attention to this. The first is those who live and work in high-voltage lines, substations, radio stations, television stations, radar stations, electromagnetic fields, etc.
People near the transmission tower; second, people who often use electronic instruments, medical equipment, and office automation equipment; third, staff living in modern electrical automation environments; fourth, patients wearing pacemakers; fifth, Pregnant women, children, the elderly and patients living in the above environment should all understand the degree of indoor electromagnetic radiation pollution. If the electromagnetic radiation pollution in the environment is relatively high, corresponding measures must be taken. For another issue in the E era Modern pollution - electromagnetic radiation has been listed by the United Nations Conference on the Human Environment as one of the major pollutants that must be controlled. Do you remember? In our children's songs, we once compared the high-voltage lines with several little sparrows standing to the staff. That was It is the most beautiful picture in the city. But times have changed. Nowadays, because it is suspected that the electromagnetic radiation released by high-voltage lines surrounding residential areas will harm human health, the builders of high-voltage lines have repeatedly appeared in hearings and even courts, and the dispute has become increasingly fierce. Some experts say that human understanding of the world is a gradual process, and many issues still need further in-depth scientific research and the test of time. At present, no matter how fierce the debate in the academic community is, existing issues that have caused great controversy should be resolved in a timely manner. First, product standards that are directly related to public health should be launched in a timely manner. Second, supervision should be strengthened for products with existing standards, especially products included in the 3C certification catalog. Third, relevant laws and regulations should be formulated To promptly resolve the current disputes. Of course, we ordinary people must also make appropriate changes in our lifestyles. For example, try to spend more time outdoors, go to the countryside, go to the fields, get close to nature, and enjoy nature. References [1] "Universe, Earth and Atmosphere" [USA]. I. Asimov, Science Press. [2] "Electromagnetic Wave Engineering", Zhu Jianqing, National University of Defense Technology Press.