Electromagnetic radiation is the phenomenon of energy being emitted into space in the form of electromagnetic waves. Sources of electromagnetic radiation that affect the human living environment are generally divided into two categories: natural and man-made. Natural electromagnetic radiation is caused by certain natural phenomena, such as lightning, volcanic eruptions, ** and sunspot activity.
Man-made sources of electromagnetic radiation are various instruments and equipment, mainly including: radio wave transmission facilities (such as radio, television transmission towers, etc.), communication facilities (such as artificial satellite ground communication stations, radar stations, mobile communication towers, etc.), various high-frequency equipment (such as high-frequency welding machines, high-frequency dryers, household microwave ovens, etc.), transportation equipment (such as electrified railways, trams, etc.), power equipment (such as high-voltage power lines, substations, etc.).
With the rapid development of the electronics industry and the communication industry, the environmental pollution caused by electromagnetic radiation is becoming more and more prominent. Electromagnetic radiation pollution has become a new type of pollution source after exhaust gas, waste water, solid waste and noise pollution, which has attracted widespread attention from countries around the world. There are many electrical equipment around us, and the electromagnetic radiation generated will pose a threat to human health, so the following preventive measures can be taken:
Learn more about electromagnetic radiation and learn how to take precautions. For example, for electrical appliances equipped with application manuals, they should be operated in strict accordance with the instructions and specifications, and a safe operating distance should be maintained. Do not place household appliances too closely or use them together too often to expose yourself to the danger of excessive doses of radiation. All kinds of household appliances, office equipment, mobile **, etc. should be avoided for a long time. When electrical appliances such as TVs and computers need to be used for a long time, they should take a break in the middle to reduce the impact of radiation.
When the appliance is suspended, it is best to turn off the power, because the standby state can produce a weaker electromagnetic field, which will produce the accumulation of emitting radiation for a long time. For the use of various electrical appliances, a certain safety distance should be maintained. For example, the distance between the eye and the TV phosphor screen is generally about 5 times the width of the phosphor screen. Pregnant women and children should try to stay away from microwave ovens, induction cookers, etc.