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Anonymous users2024-02-15In fact, what can really cause harm to the human body physiologically are ultraviolet light waves (10-7 10-9m), X-rays (10-9-10-11m), gamma rays (10-11-10-14m), these high-energy rays. The energy of an electromagnetic wave is directly proportional to its frequency. The higher the frequency of the electromagnetic wave, the greater the energy carried, and when the high-energy rays irradiate the object, it is possible to hit out the electrons of the atoms and molecules in the substance, so that the substance is filled with charged ions, this effect is called ionization, and the electromagnetic wave that causes this ionization phenomenon is called ionizing radiation.
However, electromagnetic waves, infrared, microwaves, and other radio waves within the visible frequency cannot cause ionizing effects, which are called non-ionizing radiation. Non-ionizing radiation only has a warming effect on the human body, of course, the intensity should not be too high to cause burns or other unknown injuries. However, the frequency of the microwave in the microwave oven is about 2450MHz, and it will resonate with water molecules, so don't get close.
High intensity is dangerous).
Balance the electric and static magnetic fields, as long as they are not at high intensity, it should be fine for a long time.
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Anonymous users2024-02-14Q: What is the frequency range of electromagnetic waves that are harmful to the human body?
A: There is a wide range, from the ultraviolet region of light waves to the infrared region, from the radio used by human beings to various cosmic rays and high-voltage lines, electromagnetic waves of all wavelengths can cause harm to the human body. Frequency is not the only parameter to measure the harm caused by electromagnetic waves to the human body, the intensity, duration and radiation location of electromagnetic waves are also important measurements.
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Anonymous users2024-02-13Alpha rays, beta rays, Roentgen rays, ultraviolet rays, etc., below 312nm are all harmful.
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Anonymous users2024-02-12Less than 20Hz (infrasound) or larger than 20000Hz (ultrasound) is harmful to the human body.
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Anonymous users2024-02-11A magnetic field strength of more than 3000 gauss is harmful to the human body.
The state has clear regulations on the strength of electromagnetic fields, which shall not exceed 3000 gauss, but there are no regulations on the scope of static magnetic fields that are harmful to the human body. This shows that there is no harm to all the static magnetic fields that the average person can come into contact with.
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