Ozone is a blue, irritating gas. In fact, ozone is not smelly. It tastes like fishy smell. The disinfection and sterilization function of ozone is broad-spectrum. It can eliminate almost all germs, viruses, molds, protozoa, eggs, etc. It is highly efficient and has no dead angle. After decomposition into oxygen, there is no harmful residue, and it is convenient without redeployment, environmental protection, etc.

 

It is well known that ultraviolet radiation from the sun has a strong killing effect on organisms. You know, there is an ozone layer 15 to 25 kilometers above the earth's surface. Although it is not very thick, it can absorb a large amount of ultraviolet radiation from the sun. It is the organisms on the earth that can be protected from ultraviolet radiation. Therefore, the ozone layer can also be called the protective layer.

 

Unlike the ozone layer at high altitude, because of its strong oxidation, the ozone near the ground is a harmful gas and even a killer. Low-concentration ozone has good germicidal effect, but if the concentration of ozone in the air is too high, it is easy to cause inflammation of the upper respiratory tract, cough, headache and other symptoms, as well as irritation to skin, eyes and nasal mucosa.

 

What should be more noteworthy is that not only industrial waste gas brings high concentration of ozone on the ground, but also some equipment in life, especially some equipment in the office, adds unnecessary ozone to our living space. Most of the printers and copiers we often use work on the principle of static electricity, which may also produce ozone and some organic waste gases. Long-term exposure may cause cardiovascular disease, even cancer.

 

How does ozone pollute the air?

 

Ozone pollution is different from PM10, which is familiar to us. It is not a primary pollutant directly discharged by the pollution source, but a secondary pollutant produced by nitrogen oxides (NOx) and volatile organic compounds (VOCS) in the air and complex photochemical reactions in the air.

 

Ozone pollution generally occurs from May to September, which is at the end of spring, summer and early autumn. High temperature weather provides more convenient conditions for ozone generation. Generally, from noon to about 3pm, it is the high temperature period of the day. The higher the concentration of nitrogen oxides and volatile organic compounds, the higher the concentration of ozone caused by secondary conversion under the influence of sunlight.

 

Ozone will be generated in the process of controlling PM2.5. With the decrease of PM2.5 concentration, the space transparency is good and the ultraviolet light is strong, which helps the generation of ozone.

How to detect ozone?

 

The air quality monitor can realize real-time monitoring of O3 and other gases and particulates in the atmosphere, providing an important means for air pollution monitoring. It uses the light scattering method and the working principle of the sensor to meet the monitoring requirements of different gases and particulates. It has the characteristics of continuity, real-time and automation, and can effectively analyze air pollutants.

 

 

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