What is ozone?
The molecular formula of ozone is O₃. It is a sky-blue fishy smelly gas, dark black in liquid state and bluish black in solid state. Ozone hole Ozone mainly exists in the ozone layer in the lower stratosphere 20 kilometers above the earth's surface. It absorbs, blocks and weakens short-wave ultraviolet rays that are harmful to the human body, preventing them from reaching the earth.
Ozone toxicity
When the concentration of ozone in the environment is high, it is another kind of environmental pollution gas. It is one of the greenhouse effect gases. It kills bacteria and also causes damage to human cells. In the static area and next to the printer, you should pay attention to ventilation to avoid Toxic effects caused by excessive ozone concentrations.
The role of ozone
1. Sterilization principle
Ozone is a strong oxidant, and the sterilization process is a biochemical oxidation reaction. Ozone sterilization has the following three forms: 1. Ozone can oxidize and decompose the enzymes needed to degrade glucose inside bacteria, causing the TCA cycle to be unable to proceed, resulting in the inability to supply ATP required for cell life activities, causing the bacteria to inactivate and die. 2. Directly interact with bacteria and viruses, destroying their organelles, DNA and RNA, causing bacterial metabolism to be damaged and causing bacterial death. 3. Through the cell membrane tissue, it invades into the cell and acts on the lipoproteins in the outer membrane and the lipopolysaccharide inside, causing the bacteria to undergo permeability distortion and dissolve and die.
2. Ozone disinfection
Domestic ozone technology has gradually matured, and ozone has gradually become known to people. Because of its extremely strong disinfection ability, it has replaced conventional disinfection and been applied in various fields: indoor disinfection, fruit and vegetable preservation and disinfection, environmental resource protection, and medical treatment. Sanitary field, food industry disinfection field, poultry breeding disinfection field, agricultural disinfection field.
The benefits and harms of ozone to humans
Harm to humans:
Low concentrations of ozone can disinfect. In general, the ozone concentration in forest areas can reach 0.1ppm, but excessive ozone is an invisible killer! In summer, due to the influence of industrial and automobile exhaust gas, surface ozone will form and accumulate, especially around big cities and in agricultural and forestry areas. Surface ozone has corrosive and damaging effects on the human body, especially the eyes and respiratory tract. Surface ozone can also be harmful to crops or forests.
▲Ozone can irritate mucus membranes and is toxic to the human body. It is unsafe to breathe in air containing 0.1ppm ozone for a long time.
▲ It strongly stimulates the human respiratory tract, causing sore throat, chest tightness and cough, bronchitis and emphysema;
▲ Ozone can cause neurotoxicity, dizziness and headache, decreased vision, memory loss, shortness of breath, fatigue, and nose bleeding;
▲ Ozone will destroy vitamin E in human skin, causing wrinkles and dark spots on human skin;
▲ Ozone can also destroy the body's immune function, induce chromosomal lesions in lymphocytes, accelerate aging, and cause pregnant women to give birth to deformed babies; therefore, the harm
Caused by ozone and organic waste gas must attract people's great attention.
Benefits to humans
An allotrope of oxygen, each molecule consists of three oxygen atoms. When present in the stratosphere, it helps protect living things on Earth from ultraviolet damage. Ultraviolet rays affect human health in many ways. The human body can develop sun spots, eye diseases, changes in the immune system, photoreactive reactions, and skin diseases (including skin cancer).