Explanation of the Mechanism of Electromagnetic Radiation Harm to Human Body
The mechanisms by which electromagnetic radiation harms the human body mainly include thermal effects, non thermal effects, and cumulative effects.
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, causing the body to heat up and affecting the normal operation of organs in the body.
2. Non thermal effects: Organs and tissues in the human body have weak electromagnetic fields, which are stable and orderly. Once disturbed by external electromagnetic fields, the weak electromagnetic fields in equilibrium are about to be destroyed, and the human body will also suffer damage.
3. Accumulative effect: After thermal and non thermal effects act on the human body, if the damage to the human body is not self repaired (usually referred to as human endurance - internal resistance), the degree of damage will accumulate and eventually become a permanent illness, endangering life. For groups exposed to electromagnetic radiation for a long time, even with low power and frequency, unexpected lesions may be induced, and caution should be exercised.
The direct consequence of multiple frequency electromagnetic waves, especially high-frequency waves and strong electromagnetic fields, on the human body is the unconscious reduction of energy and physical strength, which can easily lead to cataracts, leukemia, brain tumors, cardiovascular diseases, brain dysfunction, miscarriages and infertility in women, and even lower human immune function, leading to diseases such as cancer.
The authoritative statistics show that the incidence rate of the above diseases is significantly higher than that of the general population among the people who often work in front of the monitor. Electromagnetic radiation is one of the main causes.
The measurement unit used for electromagnetic radiation measurement
Usually, for microwave frequency bands greater than 300MHz, the average power density mW/cm2 is used as the measurement unit. For frequency bands less than 300MHz, the electric field strength V/m and magnetic field strength A/m are used as the measurement units. When conducting electromagnetic environment measurements, the national measurement standard for interference field strength adopts the unit of mV/m, and when expressed in decibels, 1mV/m=0dB.
