Introduction to Electromagnetic Radiation Sources
Electromagnetic radiation sources can be divided into natural electromagnetic radiation sources and artificial electromagnetic radiation sources. Lightning, sunspot activity, cosmic rays, and other factors all generate electromagnetic radiation, which is a natural source of electromagnetic radiation; The main sources of artificial electromagnetic radiation include various types of radio equipment, as well as industrial, scientific, and medical equipment (ISM).
Various types of radio equipment, such as mobile phones, wireless walkie talkies, indoor wireless telephones, radio and television transmitters, microwave and satellite communication devices, radars, radio remote controls, as well as microwave ovens, high-frequency eye protection lamps, medical magnetic resonance equipment, helium arc welding machines, radio frequency electric heaters, high-frequency heat exchangers, AC high-voltage transmission lines, conversion switches, electric motors, generators, televisions, computers, etc., all contain electromagnetic radiation.
What is radiation
Radiation is invisible, odorless, and colorless, and can penetrate various substances, including the human body. Various household appliances, electronic devices, office automation equipment, mobile communication equipment, signal transmission equipment, and other devices, as long as they are in operation and use, will have radiation around them. People who work, study, and live in environments with concentrated radiation sources are prone to insomnia, excessive dreaming, decreased memory, physical weakness, and weakened immunity. Their cancer cell growth rate is 24 times faster than that of normal people.
How far away is radiation from us? Radiation is everywhere in our living environment!
Household appliances: televisions, refrigerators, air conditioners, microwaves, vacuum cleaners, etc
☆ Office equipment: mobile phones, computers, copiers, electronic instruments, medical equipment, etc
☆ Home decoration: marble, composite flooring, wallpaper, paint, etc
☆ Surrounding environment: high-voltage lines, substations, television (broadcasting) signal transmission towers, etc
