What harm does working in the furniture city do to your health for a long time? Thank god, help me.

The following pollution sources may exist in furniture. Take a look ▲ The nature of radon, its harm to human body and its source. Radon is a radioactive inert gas, colorless and tasteless. After radon gas is formed in cement, sandstone and bricks, some of it will be released into the air and inhaled into the human body to form radiation, which will destroy cell structure molecules. Radon alpha rays can cause cancer, and radon is one of the carcinogenic factors identified by WHO as 19, which is second only to smoking. Radon mainly comes from the rupture of inorganic building materials and underground geological structures. ▲ Sources of formaldehyde in indoor air: plywood, blockboard, medium density fiberboard, particleboard and other artificial boards used for indoor decoration all contain formaldehyde. Formaldehyde is used to synthesize a variety of adhesives, such as urea-formaldehyde resin, melamine formaldehyde, amino formaldehyde resin, phenolic resin, etc. Because of its strong adhesion, it also has the functions of strengthening the hardness of plates, preventing insects and preventing corrosion. Other decorative building materials that contain formaldehyde and may be emitted to the outside world, such as prefabricated panels, wall stickers, wallpaper stickers, chemical fiber carpets, foam plastics, paints and coatings with urea-formaldehyde foam resin as thermal insulation materials. At present, urea-formaldehyde resin, the main component of adhesive used in wood-based panel production, will gradually release the residual unreacted formaldehyde in the panel to the surrounding environment, which is the main body of formaldehyde in indoor air. Decoration materials and new combination furniture are the main sources of formaldehyde pollution ▲ What is formaldehyde? Formaldehyde (HCHO) is a colorless and soluble irritating gas, which can be absorbed by respiratory tract and its aqueous solution "formalin" can be absorbed by digestive tract. ▲ Harmfulness of long-term exposure to low-dose formaldehyde: formaldehyde has a strong carcinogenic and cancer-promoting effect. According to a large number of documents, the effects of formaldehyde on human health are mainly manifested in abnormal smell, irritation, allergy, abnormal lung function, abnormal liver function and abnormal immune function. When its concentration reaches 0.06-0.07mg/m3 per cubic meter of air, children will have mild asthma. When the formaldehyde content in indoor air is 0. 1mg/m3, it will have peculiar smell and make people uncomfortable. When it reaches 0.5mg/m3, it can irritate eyes and cause tears; Up to 0.6 mg/m3, which may cause throat discomfort or pain. When the concentration is high, it can cause nausea and vomiting, cough and chest tightness, asthma and even pulmonary edema; When it reaches 30mg/m3, it will give birth and cause immediate death. Long-term exposure to low-dose formaldehyde is even more harmful, which can cause chronic respiratory diseases, nasopharyngeal carcinoma, colon cancer, brain cancer, menstrual disorder, gene mutation in the nucleus, DNA single-strand cross-linking and DNA-protein cross-linking, inhibition of DNA damage repair, pregnancy syndrome, neonatal chromosomal abnormalities, leukemia, and memory and intelligence decline of adolescents. Among all the contacts, children, pregnant women and the elderly are particularly sensitive to formaldehyde, which is more harmful. The International Institute of Cancer recommends that it be regarded as a suspected carcinogen. Benzene is a carcinogen. Mild poisoning can cause drowsiness, headache, dizziness, nausea and chest tightness. , and may have mild symptoms of mucosal irritation. Severe poisoning can lead to blurred vision, shallow and rapid breathing, arrhythmia, convulsions and coma. ▲ Sources of benzene in indoor air: Benzene in homes and office buildings mainly comes from a large number of chemical raw materials used in building decoration, such as paints, fillers and various important solvents, which all contain a large number of organic compounds and are sent indoors after decoration. Mainly manifested in the following decorative materials: paint: benzene compounds mainly volatilize from paint; Tianna water and thinner: there are a lot of additives in paints and coatings; Various adhesives: some sofas purchased by families release a lot of benzene, mainly because adhesives with high benzene content are used in production; Waterproof coating was prepared with waterproof material powder and diluent. After running for 15 hours, the benzene content in indoor air exceeded the national maximum concentration 14.7 times. Some low-grade and counterfeit paints ▲ What is benzene? Benzene is a colorless liquid with a special aromatic smell. Toluene and xylene with boiling point of 80℃ belong to homologues of benzene, and they are both products of coal tar fractionation or petroleum cracking. At present, toluene and xylene are often used as solvents or diluents for various adhesives, paints, coatings and waterproof materials in interior decoration, instead of pure benzene. ▲ Harmfulness of benzene to human body: benzene is volatile, flammable and explosive. When people inhale high concentrations of toluene and xylene in a short time, they may suffer from central nervous system anesthesia, ranging from dizziness, headache, nausea, chest tightness, fatigue and confusion to coma, leading to respiratory and circulatory failure and death. If long-term exposure to a certain concentration of toluene and xylene will cause chronic poisoning, there may be neurasthenia symptoms such as headache, insomnia, listlessness and memory loss. Benzene compounds have been identified as strong carcinogens by the World Health Organization. Recently, this newspaper, in conjunction with a number of media in Hangzhou, investigated the self-proclaimed benzene-free coatings in the decoration market in Hangzhou. The investigation team purchased three groups of paints named "benzene-free" or "benzene-free" respectively, and sent them to the National Chemical Building Materials Quality Supervision and Inspection Center for detection of harmful substances. The test results show that all paints contain benzene (including toluene and xylene). What people usually say is actually a series of substances, including benzene, toluene and xylene. Benzene compounds have been identified as strong carcinogens by the World Health Organization, and it is also recognized by the medical community that benzene can cause leukemia and aplastic anemia. People who inhale high concentration of toluene or xylene in a short time will have symptoms of central nervous system anesthesia. Zhao Jianxin, deputy director of the National Center for Quality Supervision and Inspection of Chemical Building Materials, told reporters: "In recent years, indoor air pollution caused by harmful substances such as benzene series has become a hot issue in society. But at present, solvent-based coatings can't be benzene-free. In all the tests of coatings before our testing center, solvent-based coatings basically contain benzene. ▲ Sources of ammonia in indoor air: mainly from concrete additives used in building construction, especially in winter construction, concrete antifreeze with urea and ammonia as the main raw materials is added to concrete walls. These additives, which contain a lot of ammonia, are reduced to ammonia in the wall with the changes of environmental factors such as temperature and humidity, and are slowly released from the wall, resulting in a large increase in the concentration of ammonia in indoor air. In addition, ammonia in indoor air can also come from additives and brighteners in indoor decoration materials. However, this kind of pollution is released quickly and will not accumulate in the air for a long time, which is less harmful to human body. However, it should also attract everyone's attention. ▲ What is ammonia? Ammonia is a colorless gas with strong pungent odor, lighter than air (specific gravity is 0.5), and the lowest sensible concentration is 5.3ppm. Ammonia is an alkaline substance, which has corrosive and irritating effects on skin tissues in contact. It can absorb moisture in skin tissue, denature tissue protein, saponify tissue fat and destroy cell membrane structure. ▲ Harm of ammonia to human health: Some people who have been exposed to ammonia for a long time may have symptoms such as skin pigmentation or finger ulcers; After ammonia is inhaled into the lungs, it easily enters the blood through alveoli, combines with hemoglobin, and destroys the oxygen transport function. Tears, sore throat, hoarseness, cough, bloodshot sputum, chest tightness, dyspnea, dizziness, headache, nausea, vomiting, fatigue, etc. May occur after inhaling a large amount of ammonia in a short time. In severe cases, pulmonary edema and adult respiratory distress syndrome may occur, and symptoms of respiratory irritation may occur. Therefore, alkaline substances do deeper and more serious damage to tissues than acidic substances. ▲ Source ▲TVOC: VOCs in indoor environment may enter from outdoor air, and may also be emitted from building materials, detergents, cosmetics, wax products, carpets, furniture, laser printers, copiers, adhesives and indoor coatings. Once these VOCs temporarily or permanently exceed the normal background level, it will cause indoor air quality problems. ▲ What is ▲TVOC? TVOC, total volatile organic compounds, is a general term for compounds that are composed of one or more carbon atoms and are easily volatilized at room temperature and normal atmospheric pressure. They are colorless gases existing in indoor environment. ▲TVOC's harm to human body: If exposed to an industrial environment containing high concentrations of VOCs, it will have toxic effects on the central nervous system, liver, kidneys, blood, etc. Sensitive people will react violently even to low concentrations of volatile organic compounds. These reactions will occur after exposure to a sensitive gas or a series of sensitive gases, and then lower doses may also cause similar symptoms, but long-term exposure to low concentrations will also cause reactions. This study links VOCs exposed in common office buildings with the following SBS symptoms: eye discomfort: burning sensation, dryness, foreign body sensation, edema, throat discomfort: dry throat and breathing problems: shortness of breath; Asthma, headache, anemia, dizziness, fatigue and irritability. Long-term exposure to benzene and other compounds and carcinogens may increase the possibility of cancer. At present, it is necessary to prevent excessive exposure to VOC because of its toxicity and sensory effects on human body and limited understanding of its components.