What impact does excessive benzene have on humans?

Benzene is an organic compound that is colorless and has a strong pungent odor. This organic compound can be extracted from many sources, such as coal, coal tar, and petroleum. This substance is widely used as industrial raw materials, including paint. This substance can help combustion, is not easily soluble in water, but is easily soluble in organic solvents, and the compound benzene can also be used as an organic solvent. Benzene in paint is a carcinogen. A house cannot be occupied immediately after it has been painted. Long-term inhalation can cause cancer. Here is a detailed introduction to the effects of excessive benzene on humans.

Due to the high volatility of benzene, it can easily diffuse when exposed to air. When humans and animals inhale or come into contact with large amounts of benzene through their skin, it can cause acute and chronic benzene poisoning. Research reports have shown that part of the cause of benzene poisoning is due to the formation of phenol in the body. Long-term inhalation can damage the human nervous system, and acute poisoning can cause nerve spasms and even coma and death.

Benzene is a colorless, odorous, toxic organic compound. If people drink tap water with excessive benzene content, it will cause physical discomfort and pose varying degrees of threat to health. In severe cases, it can lead to leukemia and may also cause cancer.

1. What is benzene?

Benzene is colorless with an aromatic odor. It is a toxic substance that can cause acute and chronic poisoning. It is irritating to the skin, can induce chromosomal aberrations in humans, and is a carcinogen.

2. Where does indoor benzene come from?

Sources of indoor benzene:

Benzene in indoor areas mainly comes from a large amount of chemical raw materials used in building decoration, such as paints, fillers and various organic solvents, which all contain a large amount of organic compounds and are released into the room after decoration. Mainly higher in the following decorative materials:

1. Paint: Benzene compounds are mainly volatilized from paint;

2. Thinner and diluent: They are present in large quantities in additives of paints and coatings;

3. Various adhesives: Furniture purchased by some families releases a large amount of benzene, mainly because adhesives with high benzene content are used in production;

4. Waterproof material: The original powder is added with thinner to prepare waterproof coating. After 15 hours of operation, the benzene content in the indoor air exceeds 14.7 times the maximum concentration allowed by the country.

5. Some low-grade and fake paints.

Sources of indoor xylene: Xylene is an important chemical raw material, mainly coming from synthetic rubber, paints and dyes, wallpaper, paints, pressed board products and carpets.

3. The harm of benzene makes people tremble with fear

Due to the high volatility of benzene and xylene, they can easily diffuse when exposed to air. When humans and animals inhale or come into contact with large amounts of benzene through their skin, it can cause chronic and acute benzene poisoning.

Short-term exposure to benzene and xylene can cause headaches, nausea, vomiting, confusion, loss of consciousness, coma, convulsions, etc.; in severe cases, death can occur due to paralysis of the central nervous system.

Long-term exposure to benzene and xylene can cause great damage to the blood, causing chronic poisoning and leading to leukemia; Infants and young children: The main symptoms are intellectual decline, nerve damage, decreased immunity, and physical retardation;

Elderly people: Can induce cardiovascular and cerebrovascular diseases such as stroke and myocardial infarction, and respiratory diseases such as asthma;

Pregnant women: It can cause fetal malformation, miscarriage, fetal brain damage, etc.

Clinical manifestations of acute benzene poisoning

1. People with mild poisoning may experience symptoms such as headache, dizziness, tearing, dry throat, cough, nausea and vomiting, abdominal pain, diarrhea, unsteady gait, purple swelling of the skin and mucous membranes, tinnitus, photophobia, palpitations, and pale complexion.

2. Moderately and severely poisoned patients, in addition to the aggravation of the above symptoms, drowsiness, slow reaction, and confusion, may also quickly become comatose, have a rapid and weak pulse, decreased blood pressure, cyanosis of the skin and mucous membranes throughout the body, rapid breathing, convulsions, and muscle tremors. Some patients may also experience agitation, peripheral nerve damage, and even difficulty breathing and shock.

4. Professional treatment of BTEX pollution

1. Activated carbon

Advantages: simple, cheap, physical adsorption, not easy to cause secondary pollution, and harmless to the human body.

Disadvantages: It is only applicable to passive adsorption in spaces with low BTEX content and cannot completely control long-term pollution sources.

2. Adsorption of green plants

Green plants such as spider plants and ivy can absorb some of the low concentrations of benzene in the room, but once the concentration of pollutants is too low, the green plants will not only have no effect, but may even cause their own death.

3. Ventilation

Advantages: simple and convenient, without any financial burden;

Disadvantages: Long cycle time and incomplete decontamination.

The above methods are only symptomatic and can only be used when the pollutant concentration is low. However, as soon as the pollutant exceeds the standard,

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Principle: Nano-scale catalytic photocatalyst products are sprayed on the surface of various pollution sources. After being irradiated by light, they enter the interior of the pollution sources and rapidly degrade toxic and harmful gases such as formaldehyde in the pollution sources through catalytic degradation. At the same time, they effectively kill a variety of bacteria and fungi, and render the toxins released by bacteria or fungi harmless.

Advantages: 1. Treat both the symptoms and the root causes, and completely eliminate pollution in one go;

2. The treatment has the functions of sterilization, deodorization and anti-fouling at the same time;

3. Nano-level treatment will not cause any damage to pollution source carriers (wallpaper, furniture, etc.).