Many survey materials at home and abroad have confirmed that the indoor pollution caused by a large number of toxic gases is much more terrible than the outdoor gray sky. Leukemia, lung cancer, baby malformations... These shocking words are increasingly associated with “decoration pollutionâ€. Some experts pointed out that following the "smoke type" and "motor vehicle exhaust type" pollution, modern people are entering the third pollution period marked by "indoor air pollution".
For more people, the damage caused by the decoration may cause serious consequences, and the damage caused by this is regrettable.
Indoor Environmental Investigation Report of the Centers for Disease Control and Prevention. More than 10,000 people surveyed live in more than 10 newly built or newly renovated communities and over 30 high-end hotels, office buildings, conference centers and laboratories. The results showed that indoor pollution includes more than 50 kinds of chemical, physical, biological and radioactive materials. Among them, formaldehyde, benzene and volatile organic compounds exceeded the standard by 20 to 30 times, and the highest reached 40 times. Among the respondents, headache, dizziness, fatigue, poor sleep accounted for 30%; skin mucous membrane irritation accounted for 30% -40%; chest tightness, throat problems accounted for 30% -40%; rhinitis accounted for 40% About %... The World Health Organization has announced that 100,000 people worldwide die of asthma every year because of indoor air pollution, and 35% of them are children.
Five major indoor pollution
Is it really "renovation pollution is fiercer than tiger"? Researcher Zhang Jinliang of the Chinese Academy of Environmental Sciences said that the source of indoor air pollution in China mainly comes from three aspects: the pollution caused by the building itself, such as some building materials due to the high radioactive background of the raw materials, and the presence of radioactive pollutants; interior decoration materials and The pollution brought by the process, such as sheet metal, chemical fiber carpet, wallpaper, etc., especially low-grade materials, the pollution is more serious; the pollution brought by furniture and home appliances, such as the release of formaldehyde from the panel furniture, the cloth sofa spray tape to benzene pollution. Scientific research shows that the above materials contain more than 300 volatile organic compounds, of which five are the most important and most harmful:
Formaldehyde - mainly from building materials such as wood-based panels, sandwich panels and adhesives. Long-term exposure can cause cancer of the nose, mouth, nasopharynx, throat, skin and digestive tract; while low-dose contacts can cause chronic respiratory diseases, pregnancy syndrome, etc., and even cause nasopharyngeal cancer.
Benzene - mainly from paints, paints, adhesives, wallpapers, carpets, synthetic fibers and detergents, solvents, etc. Benzene has a special aroma, but it is a strong carcinogen. Long-term inhalation can damage the human circulatory system and hematopoietic function, leading to leukemia.
氡—The latest research published by the World Health Organization shows that cockroaches have become the second largest cause of lung cancer after smoking. Professor Zhi Xiuyi, director of the Lung Cancer Clinic of Capital Medical University, said that cockroach is a natural radioactive gas, colorless and odorless, like “invisible smokeâ€. Its main hiding place is granite and ceramic products such as ceramic tiles and sanitary ware. The average sputum content per cubic metre of space increased by 100 Baker, and the risk of lung cancer increased by 16%. In the United States, about 60 people are killed every day, more than the number of people killed by AIDS.
Ammonia – mainly from concrete additives and interior materials. Ammonia gas is very soluble in water, and it has a fast effect on eyes, throat and upper respiratory tract, and it is very irritating. Short-term inhalation of a large amount of ammonia will cause tears, sore throat, cough, chest tightness, difficulty breathing, dizziness, vomiting, fatigue and so on. Especially in winter construction, it is abundant in antifreeze.
Total volatile organic compounds - mainly from furniture, wallpaper, etc. Can cause immune level disorders, affect the central nervous system function, dizziness, headache, lethargy, chest tightness and other symptoms, may also affect the digestive system, loss of appetite, nausea, etc., severely can damage the liver and hematopoietic system.
Will these five substances really make decoration pollution a "stealth killer"? According to the maintenance, indoor pollution caused by decoration materials is indeed an important cause of cancer. Toxic substances in the decoration may be associated with leukemia.
New homes are best to have a "physical examination" first.
Then, in the face of the newly renovated new house, how should we deal with the air odor in a hurry? Several experts have given you the following tips.
Wood stone is used together. Dong Jingsheng, deputy secretary general of the China Consumers Association, said that when selecting a decoration design, a single material should not be used too much. It is best to use materials such as wood, stone, glass and iron.
The artificial board is selected for about 100 yuan. Wood-based panels are the easiest source of pollution. There is a simple standard when selecting: the wood-based panels of about 100 yuan per piece are relatively safe; the amount of large-core panels in a room of 100 square meters should be controlled within 20 sheets.
Solid wood furniture is the most environmentally friendly. Solid wood furniture contains the least amount of glue and less pollution; try not to place large or large-sized furniture in small rooms; do not choose the same furniture as floor materials, especially those with laminate flooring and other artificial flooring. Minimize the choice of wood-based panel furniture.
Ventilate for one month. Large, complex renovation projects, preferably ventilated for a month to live. For simple decoration or renovation, it is necessary to pay attention to opening windows and allowing air to convect, because the proportion of pollutants such as benzene, formaldehyde and ammonia is larger than that of air, and it sinks to the bottom of the room. Only air convection can drive them out.
Give a new home a "physical examination." Many people think that there is a pungent taste after the decoration, and there is no pollution. In fact, this is not the case. In toxic and harmful gases, formaldehyde has a pungent odor, and it is colorless and odorless. Before you check in, it is best to find a qualified authority to conduct indoor air toxicant testing and evaluation.
For office buildings with large decoration area, it is best to choose non-toxic and non-polluting building decoration materials and office furniture; ventilation time is longer than ordinary families; indoor air quality testing is best before check-in; some plants have adsorption effects on pollutants, such as The ivy and iron trees can absorb benzene and organic matter, and the orchids, aloe vera and the like can absorb formaldehyde.
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