Why is the air so fresh after a thunderstorm?

1, after the thunderstorm, most of the dust in the air was brought to the ground by the rain, and the air changed chemically during the discharge, and some oxygen became ozone.

2. Ozone has the ability of sterilization and bleaching. Proper concentration of ozone can give people a fresh and pleasant feeling. Therefore, after the abnormal thunderstorm, because there is a small amount of ozone in the air, it can purify the air, sterilize and disinfect, which makes people feel particularly comfortable.

3. Water has a cleaning function. The thunderstorm weather in summer is fierce, which not only brings coolness, but also washes the dust floating in the air to the ground, increasing the relative humidity and making the air cleaner.

Extended data:

1, the main functions of negative ions: negative ions have the functions of calming, relieving pain, relieving cough, relieving itching, diuresis, stimulating appetite and lowering blood pressure. For example, after a thunderstorm, negative ions in the air increase and people feel very comfortable.

2. In the air-conditioned room, because of the negative ions in the air, after a series of air-conditioning purification treatment and long ventilation pipes, almost all of them disappear, and people will feel chest tightness, dizziness, fatigue, work efficiency and health decline after staying for a long time, which is the so-called "air-conditioning syndrome". ?

3. Small particle size negative ions? It has good biological activity and is easy to enter the human body through the blood-brain barrier to exert its biological effects.

4. Air negative ions, also known as negative oxygen ions, refer to oxygen ions with/kloc-0 or more negatively charged electrons. The main components of air are nitrogen, oxygen, carbon dioxide and water vapor.

5. Nitrogen accounts for 78%, oxygen accounts for 2 1% and carbon dioxide accounts for 0.03%. Nitrogen has no affinity for electrons, only oxygen and carbon dioxide have affinity for electrons, but the oxygen content is 700 times that of carbon dioxide. Therefore, most of the negative ions produced in the air are negative oxygen ions in the air.

6. It is composed of oxygen molecules in the air combined with free electrons. Natural discharge (lightning), photoelectric effect, fountains and waterfalls can ionize the surrounding air and form negative oxygen ions.

7. Negative ions have excellent effects of purifying and removing dust, reducing the harm of second-hand smoke, improving the prevention of respiratory diseases, improving sleep, resisting oxidation, preventing aging, scavenging free radicals in the body and reducing blood viscosity, and enjoy the reputation of Vitasol, Air Vitamin, Longevity Vitamin and Air Vitamin in the medical field.

References:

Air negative ions _ Baidu Encyclopedia