Bingbing Bi
Bingbing Bi
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What exactly is ozone?

For many people, ozone is a rather vague concept. They only know that ozone is harmful to humans. Keep away from ozone. In fact, this is a misunderstanding of ozone by many people. Today, I will analyze with you what ozone is and what its characteristics are. Everyone understands the existence of ozone more objectively.

What is ozone?

We all know the chemical formula of ozone, O3, which can be reduced to oxygen by itself at room temperature. It is an allotrope of oxygen that we are familiar with, but its specific gravity is larger than that of oxygen, it is easily soluble in water, easy to decompose, and is not stable with oxygen. Ozone has a certain odor and is a light blue gas that emits a fishy odor. Ozone has a strong oxidizing property and is a stronger oxidizer than oxygen. It can oxidize at a lower temperature. For example, it can oxidize silver to silver peroxide, lead sulfide to lead sulfate, and react with potassium iodide to generate iodine.

Advantages of ozone

Disinfection has no dead ends, high sterilization efficiency, and odor removal. When the disinfection is in progress, the ozone generator generates a certain amount of ozone. In a relatively closed environment, the diffusion is uniform and the permeability is good. It overcomes the problem of sterilization dead ends in ultraviolet sterilization and achieves all-round, rapid and efficient disinfection and sterilization purposes. In addition, due to its broad sterilization spectrum, it can kill bacteria, spores, viruses, fungi and protozoa spores and other microorganisms.

No residue, no pollution. Ozone is produced by using oxygen in the air. During the disinfection and oxidation process, the excess oxygen atoms are combined into molecular oxygen after 30 minutes. There is no residual substance, which solves the problem of residual secondary pollution during disinfection by disinfectants and eliminates them. Clean again after disinfection.

The harm of ozone

Near the ground, ozone will enter the farmland ecosystem in the form of dry deposition, thereby affecting the health of the farmland ecosystem. It has a strong negative effect on the growth, yield and photosynthetic mechanism of crops. It also affects the phenology, quality and quality of crops. Farmland soil enzyme activity, etc.

In daily life, high concentrations of ozone can also react with building decoration materials, such as surface coatings such as oxidized latex paints, as well as household products such as cork appliances, carpets, silk, cotton, cellulose acetate, nylon and polyester. The finished product contains organic compounds with unsaturated carbon-carbon bonds, which can cause dye fading, image layer fading, tire aging, etc.

For humans, the limit concentration of ozone acceptable to the human body is 260 micrograms/cubic meter based on 1 hour. When the concentration reaches 320 micrograms/cubic meter, it will cause coughing, breathing difficulties and decreased lung function. If you are directly exposed to high concentrations of ozone for a long time, symptoms such as fatigue, coughing, chest tightness, chest pain, nausea, headache, memory loss and vision loss will occur. In addition, ozone can also damage thyroid function, cause bone calcification, and even cause potential systemic effects, etc., such as inducing chromosomal aberrations in lymphocytes, damaging the activity of certain enzymes, and producing hemolytic reactions.

As the country pays more and more attention to ozone control, the method of ozone sensor is gradually developed to detect ozone. Ozone sensor include porous glass sensors, electrochemical ozone sensors and so on. Sensors usually have the characteristics of small size and low power consumption. Compared with ozone analyzers, they are more suitable for the detection of ozone concentration in urban air monitoring points.