How to solve indoor ozone pollution?

According to the data of China National Environmental Monitoring Center, on June 9 15, Beijing's air quality index AQI was 139, the air quality was slightly polluted, and the primary pollutant was ozone. At the same time, the data show that ozone pollution has occurred in Changchun City, Jilin Province in the northeast, Hangzhou City, Zhejiang Province in the Yangtze River Delta, and Chengdu City, Sichuan Province in the southwest. According to the forecast, ozone pollution in Beijing, Tianjin and Hebei, Yangtze River Delta and other regions will continue in the next few days. ?

Ozone is a blue irritating gas, and oxygen, as we all know, is a "blood brother". As we all know, ultraviolet radiation from the sun is very destructive to living things. Fortunately, there is an ozone layer 25 to 50 kilometers away from the earth's surface. Although the ozone layer on the earth's surface is not too thick, it can absorb a lot of ultraviolet radiation from the sun, so that life on the earth can be protected from ultraviolet damage. Therefore, the ozone layer is also called the "protective umbrella" of the earth. ?

Experts pointed out that unlike the ozone layer in the sky, the ozone near the ground is a harmful gas because of its strong oxidation, and may even become a "health killer". Low concentration ozone has good bactericidal effect and has been widely used in many fields. However, if the ozone concentration in the air is too high, it is easy to cause inflammation of the upper respiratory tract, cough, headache and other symptoms, and it will also stimulate the skin, eyes and nasal mucosa. ?

Monitoring data show that ozone pollution is generally low in the early morning, starts to climb in the morning, reaches a high level at noon, and lasts until the evening, and the concentration gradually decreases at night. ?

Experts said that because the public does not know enough about ozone, and ozone pollution often occurs when the weather is fine, it is more easily ignored by people, thus laying a health hazard. Unlike the prevention of PM2.5, wearing a mask is ineffective in preventing ozone. Experts suggest that the public, especially children, the elderly and other vulnerable people, try to avoid outdoor activities at 2 or 3 pm when ozone pollution is the most serious. When the outdoor ozone concentration is high, the indoor ventilation frequency should be reduced.