Are residents near Ankang Power Grid safe? What harm does the power grid do to human body? What is the radiation area of Ankang Power Grid (Jinxiu Mountain Villa)? Come on, everybody, 3Q.

The mechanism of electromagnetic radiation endangering human body is mainly thermal effect, non-thermal effect and cumulative effect. 1, thermal effect: More than 70% of the human body is water, and water molecules rub against each other after being radiated by electromagnetic waves, which causes the body to heat up, thus affecting the normal work of internal organs. 2. Non-thermal effect: There are weak electromagnetic fields in human organs and tissues, which are stable and orderly. Once disturbed by the external electromagnetic field, the weak electromagnetic field in equilibrium will be destroyed and the human body will be damaged. 3. Cumulative effect: After thermal and non-thermal effects act on the human body, the damage to the human body has not yet had time to repair itself (commonly known as human endurance-internal resistance). If it is radiated by electromagnetic waves again, its damage will accumulate and become permanent pathological and life-threatening. For groups exposed to electromagnetic radiation for a long time, even if the power is very small and the frequency is very low, unexpected lesions may be induced, so we should be vigilant. 4. Geomagnetic interference effect: The earth is a large magnetic field, and the interaction between the magnetic field inside the human body and the geomagnetic field is balanced. If there is a large magnetic field around, it will break the original magnetic field balance of the human body. This is why some people suffer from insomnia and headache near the electromagnetic source environment, and these feelings will disappear after leaving for a few days. Electromagnetic fields may not directly cause diseases, but insomnia and other conditions can cause other diseases. Geomagnetic interference effect can not be avoided by the so-called safe distance of tens of meters, and the safe distance only ensures the intensity of direct electromagnetic radiation. The direct consequence of multi-frequency electromagnetic waves, especially high-frequency waves and strong electromagnetic fields, is that people's energy and physical strength are unconsciously reduced, which is easy to produce cataracts, leukemia, brain tumors, cardiovascular diseases, female brain dysfunction, abortion, infertility, and even lead to low immune function, thus causing diseases such as cancer. It is worth noting that different people or the same person have different tolerance to electromagnetic radiation at different ages, and the elderly, children and pregnant women belong to sensitive groups. ICNIRP suggests that the public exposure limit is 5kV/m ... China requires that the exposure limit of power frequency electromagnetic fields in schools, kindergartens, hospitals and residential areas is 1kv. Electromagnetic pollution has been recognized as the fourth public hazard after air pollution, water pollution and noise pollution. The United Nations Human Environment Conference listed electromagnetic radiation as one of the main pollutants that must be controlled. Electromagnetic radiation includes not only high-intensity electromagnetic waves generated by electrical equipment such as TV stations, substations and electromagnetic wave transmission towers, but also electromagnetic radiation generated by household appliances such as computers, televisions, mobile phones and microwave ovens. These electromagnetic radiations fill the space, are colorless, odorless and intangible, and can penetrate many substances including the human body. If the human body is exposed to radiation doses exceeding the safe level for a long time, cells will be killed or die in a large area. According to foreign data, electromagnetic radiation has become one of the pathogenic sources that endanger human health. Large substations are important sources of electromagnetic radiation. The electromagnetic pollution of high-voltage transmission lines and substations is harmful to human health, and the electromagnetic environment problem has become a matter of great concern to residents. The factors that cause electromagnetic environment problems are clutter (visible noise, TV, radio, clutter, etc.). ) corona discharge, ozone and magnetic and electric fields generated by current and voltage in conductors. The results of foreign medical research show that the electromagnetic field of high voltage transmission lines has adverse effects on human tissues. The mechanism of electromagnetic radiation endangering human body is mainly thermal effect, non-thermal effect and cumulative effect. (1) Thermal effect: More than 70% of the human body is water, and water molecules rub against each other after being radiated by electromagnetic waves, which causes the body to heat up, thus affecting the normal work of internal organs. (2) Non-thermal effect: There is a weak electromagnetic field in human organs and tissues, which is stable and orderly. Once disturbed by the external electromagnetic field, the weak electromagnetic field in equilibrium will be destroyed and the human body will be damaged. (3) Cumulative effect: After thermal and non-thermal effects act on the human body, the damage to the human body has not yet had time to repair itself (commonly known as human endurance-internal resistance). If it is radiated by electromagnetic waves again, the degree of damage will accumulate, and over time it will become permanent pathological and life-threatening. For groups exposed to electromagnetic radiation for a long time, even if the power is very small and the frequency is very low, unexpected lesions may be induced, so we should be vigilant. The direct consequence of multi-frequency electromagnetic waves, especially high-frequency waves and strong electromagnetic fields, is that people's energy and physical strength are unconsciously reduced, which is easy to produce cataracts, leukemia, brain tumors, cardiovascular diseases, female brain dysfunction, abortion, infertility, and even lead to low immune function, thus causing diseases such as cancer. It is worth noting that different people or the same person have different tolerance to electromagnetic radiation at different ages, and the elderly, children and pregnant women belong to sensitive groups. On the evening of June 26th, 2006, at 7:00-7:30, CCTV Channel 10 invited Li Anmin, a famous brain surgeon from 304 Hospital, as a guest. Director Li clearly pointed out that among the "four major health killers" in the city (water pollution, air pollution, noise pollution and electromagnetic radiation pollution), electromagnetic radiation pollution should rank first, but it has basically not attracted attention at present. He said that there are many operations for brain cancer and glioma, and some of them were caused by long-term use of mobile phones in the early days of reform and opening up, and now they are showing up. Substation will produce interference noise and deadly low-frequency electromagnetic radiation, which will damage human health, especially for children. Children exposed to this electromagnetic radiation for a long time are more likely to suffer from cancers such as leukemia. As early as 200 1, WHO listed low-frequency electromagnetic radiation as a carcinogen. 1 10KV large-scale substation has six major hazards: 1. Effects on cardiovascular system: palpitation, bradycardia, sinus arrhythmia, etc. Second, the impact on the nervous system: memory loss, irritability, insomnia, headache, etc. Third, the impact on the visual system: manifested as turbidity of the eyeball lens, serious cataract, irreversible organic damage, affecting vision; Fourth, the impact on the reproductive system: sexual function is reduced, and the quality of male sperm is reduced, causing spontaneous abortion of pregnant women and fetal malformation; 5. Long-term exposure to high electromagnetic radiation will change blood, lymph and cell protoplasm: it will affect the circulatory system, immunity, hormone secretion, reproduction and metabolic functions of the human body, seriously accelerate the proliferation of cancer cells in the human body and induce diseases such as cancer, diabetes and hereditary diseases, and may also induce childhood leukemia; Sixth, patients with pacemakers are exposed to high electromagnetic radiation, which will affect the normal use of pacemakers. The cumulative effect of electromagnetic radiation on people is unimaginable. Floor: 1073 According to the Regulation on the Protection of Electric Power Facilities, for a 1 10 kV substation transmission overhead line, its protection area is outside the line 10 m, in other words, as long as it is away from the power line 10 m, electromagnetic radiation will occur. Conductors of 220kV and 500kV power transmission and transformation systems, with protection zones of 15m and 20m respectively. The safe distance of outdoor box-type substation is stipulated in this way. The safety distance of 6KV is 0.7m, and the safety distance of 0.4KV is the low voltage side, as long as it is not touched. The so-called safe distance is the minimum distance between human body and charged body. I think your picture shows that the distance between the transformer room and the building is 0.8m, which is far from the transformer inside, which is enough from a safe distance. But the electromagnetic interference you said depends on the shielding wall of the substation. It must have an effect on the noise. The following are the safety distances of other voltage levels for reference, with units of (KV) 10KV and below 0.7 m, 35KV 1.0 m, 1 10KV 1.5 m, 220 KV3.0 m and 330kV 4.0. Therefore, the workers who are on duty in substations and power plants for a long time will not be affected by electromagnetic radiation when they work outside the safe distance of electric shock. According to the national requirements, the power transmission and transformation project has been evaluated and approved by the environmental protection department to ensure that electromagnetic radiation has no adverse effects on the public. It is forbidden to build houses under high-voltage lines. The wires on the roofs of these residents with power facilities planning and protection are all 1 10000 volts, which will produce strong radiation and be harmful to human health. In addition, because the voltage is as high as 1 10000 volts, wire equipment may break down, and foreign experts have come to the conclusion that both the "harmful theory" and the "harmless theory" of high-voltage lines in buildings are "harmful" from the perspective of epidemiological investigation; Domestic experts have concluded that it is "harmless" from the point of view of electricity. 2. Who has the greatest influence on high-voltage lines? It has great influence on children and little influence on adults. 3. What is the impact of high-voltage lines? British epidemiologists have concluded that the incidence of leukemia in children living in electromagnetic radiation environment is one in 700, which is twice as high as that in children living in electromagnetic radiation-free environment (1.400). The conclusion of Swedish National Council for Industry and Technology Development: Children under 1 and 1.5 years old are more than 2.7 times more likely to suffer from leukemia than ordinary children if they are exposed to an environment with an average magnetic induction intensity greater than 0.2 microtesla; 2. If the magnetic induction is greater than 0.3 micro Tesla, it is 3.8 times. The conclusion of California Health Science Assessment Agency: "Electromagnetic field can increase the risk of childhood leukemia, adult malignant brain tumor, amyotrophic lateral sclerosis, abortion and so on. To a certain extent, this may lead to suicide and adult leukemia. " 4. What is the impact of high-voltage lines on people? What is its safety index value? High-voltage lines transmit large current, and the magnetic field generated by large current has an impact on people's health. British experts believe that the safe value of the magnetic field generated by high-voltage lines is 0.4 micro Tesla (μt), above which children will face the risk of illness. 5. What is the safe distance of the high-voltage line? Electromagnetic radiation intensity exceeds 0.4 microtesla within 220kV high-voltage line100m; 132 kV high-voltage line electromagnetic radiation intensity exceeds 0.4 microtesla in the range of tens of meters; The electromagnetic radiation intensity of 1 1-66 kV high-voltage lines within a range of more than ten meters exceeds 0.4 micro Tesla; The electromagnetic radiation intensity of high-voltage lines buried in the ground is only more than 0.4 micro Tesla within a few meters. 6. China's high-voltage line construction standards are far from meeting the safety requirements. According to Chinese standards, the magnetic induction intensity below 100 micro Tesla can meet the construction standards of high-voltage lines. 7. The impact of high-voltage lines on real estate has already appeared. The owner found that the impact of high-voltage lines on real estate has begun, and the rental price of houses near 1 and high-voltage lines has dropped; 2. The sale of second-hand houses next to high-voltage lines is also affected. High-voltage lines make the house that has worked hard for a lifetime face depreciation; Developers also found that housing sales near high-voltage lines were not smooth. The safe distance between outdoor and it shall not be less than 8 meters. Environmental Protection Bureau document HJ/T24- 1998 stipulates that the evaluation range of power frequency electric field and magnetic field is within 500m of substation site. National standards for radio interference assessment within 2000m of substation walls: There are two national mandatory standards for electromagnetic radiation in China: Regulations on Protection of Electromagnetic Radiation (Environmental Protection Standards)-(GB 8702-88, 1988, 65438,065438,01065438 issued by the State Environmental Protection Agency. And the current electromagnetic radiation standard was formulated 20 years ago. 1 10KV large-scale substation has six major hazards: 1. Effects on cardiovascular system: palpitation, bradycardia, sinus arrhythmia, etc. Second, the impact on the nervous system: memory loss, irritability, insomnia, headache, etc. Third, the impact on the visual system: manifested as turbidity of the eyeball lens, serious cataract, irreversible organic damage, affecting vision; Fourth, the impact on the reproductive system: sexual function is reduced, and the quality of male sperm is reduced, causing spontaneous abortion of pregnant women and fetal malformation; 5. Long-term exposure to high electromagnetic radiation will change blood, lymph and cell protoplasm: it will affect the circulatory system, immunity, hormone secretion, reproduction and metabolic functions of the human body, seriously accelerate the proliferation of cancer cells in the human body and induce diseases such as cancer, diabetes and hereditary diseases, and may also induce childhood leukemia; Sixth, patients with pacemakers are exposed to high electromagnetic radiation, which will affect the normal use of pacemakers. The cumulative effect of electromagnetic radiation on people is unimaginable. Harm of Substation The harm mechanism of electromagnetic radiation to human body is mainly thermal effect, non-thermal effect and cumulative effect. 1. Thermal effect: More than 70% of human body is water, and water molecules rub against each other after being radiated by electromagnetic waves, which causes the body to heat up, thus affecting the normal work of internal organs. 2. Non-thermal effect: There are weak electromagnetic fields in human organs and tissues, which are stable and orderly. Once disturbed by the external electromagnetic field, the weak electromagnetic field in equilibrium will be destroyed and the human body will be damaged. 3. Cumulative effect: After thermal and non-thermal effects act on the human body, the damage to the human body has not yet had time to repair itself (commonly known as human endurance-internal resistance). If it is radiated by electromagnetic waves again, its damage will accumulate and become permanent pathological and life-threatening. For groups exposed to electromagnetic radiation for a long time, even if the power is very small and the frequency is very low, unexpected lesions may be induced, so we should be vigilant. The direct consequence of multi-frequency electromagnetic waves, especially high-frequency waves and strong electromagnetic fields, is that people's energy and physical strength are unconsciously reduced, which is easy to produce cataracts, leukemia, brain tumors, cardiovascular diseases, female brain dysfunction, abortion, infertility, and even lead to low immune function, thus causing diseases such as cancer. It is worth noting that different people or the same person have different tolerance to electromagnetic radiation at different ages, and the elderly, children and pregnant women belong to sensitive groups. Many experts, such as Professor Gao Yougang, Chairman of China Electromagnetic Compatibility Committee, Professor Zhao Yufeng of China Institute of Electrician, and Professor Tao Yongxian, former director of Beijing Institute of Labor, pointed out that there is a lot of scientific evidence at home and abroad that electromagnetic radiation environment with magnetic field higher than 0.2 micro Tesla may cause harm to human body. Moreover, there is no exact and complete evidence at home and abroad to prove that the high-voltage substation has no impact on the residents within the nearby150m range. Professor Cao of China Center for Disease Control and Prevention also pointed out that the harm of electromagnetic radiation to human health is caused by accumulation. Even if it does not exceed the standard, it cannot be said to be harmless. Substations above 100 kV belong to the electromagnetic radiation project1Administrative Measures for Environmental Protection of Electromagnetic RadiationNo. 18 issued by the State Environmental Protection Administration on March 25, 1997, and the power transmission and transformation systems above 100 kV have been clearly listed in the list of electromagnetic radiation construction projects and equipment.