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Time：2023-10-26 Views：1
The positive and negative ions in air can be divided into large, medium, and small ions based on their mobility. What is beneficial to the human body is small ions, also known as light ions, which have good biological activity. Only small ions or clusters of ions can enter organisms.
The positive and negative ions in air can be divided into large, medium, and small ions based on their mobility. If the ion mobility is greater than 0.4c ㎡/(V ` s), it is a small ion, if it is less than 0.04/(V ` s), it is a large ion, and if it is between the two, it is a medium ion. Charged atomic or molecular clusters close to the size of molecules belong to small air ions. These small air ions have high velocities of motion, colliding with each other in the atmosphere and continuously gathering to form large or medium ions.
The movement speed of ions under the action of a unit intensity (V/m) electric field is called ion mobility, which is an important parameter for distinguishing the diameter of the measured ion. The smaller the diameter of air ions, the faster their migration speed. Ion mobility is an important parameter that expresses the size of the measured ion. The velocity of ion motion is inversely proportional to the ion diameter, while the ion mobility is directly proportional to the velocity of ion motion, so the ion mobility is negatively proportional to the ion diameter
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