Be alert to indoor decoration pollution

2022-07-22
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Be alert to indoor decoration pollution

be alert to abnormal phenomena

according to Song Guangsheng, director of the national indoor environment and indoor environmental protection product quality inspection center, if the following situations occur in the newly decorated house, you need to pay more attention and be alert to the possible indoor harmful substances

>& gt;& gt; Link: environmental protection decoration is not equal to living environmental protection

if there are the following manifestations in your home, I suggest you pay close attention:

1 When I get up every morning, I feel suffocated, nauseated, and even dizzy

2. Family members are often prone to colds

3. Although he doesn't smoke and rarely contacts the smoking environment, he often feels uncomfortable in his throat, feels foreign body, and has poor breathing

4. Children at home often cough, sneeze, and have decreased immunity

5. Family members often have skin allergies and other problems, and they are mass

6. Family members share a disease, and after leaving this environment, the symptoms will change and improve significantly

7. The wife is not pregnant for a long time, and the reason cannot be found out

8. Fetal malformation found by pregnant women under normal pregnancy

9. After a new move or decoration, indoor plants are not easy to survive, and their leaves are easy to turn yellow and wither, especially some plants with the strongest vitality are also difficult to grow normally

10. After the new move, the domestic pet cat, dog or tropical fish died inexplicably, and so did the neighbors

11. Newly decorated families or newly bought furniture have irritating reactions such as dazzling and pungent, and the smell still lingers for more than a year

list of hazardous substances

according to the regulations on indoor environmental pollution control of civil building engineering (GB50325-2001), at present, the indoor environmental pollutants of civil buildings (indoor decoration also applies to this standard) mainly include the following five categories: radon, free formaldehyde, benzene, ammonia and TVOC. According to experts, decoration mainly involves volatile substances such as radon, free formaldehyde, benzene and TVOC. Where do these harmful substances come from? What are the hazards? Please listen to the experts' introduction one by one

radon is an underground killer

according to experts, radon is a radioactive inert gas, colorless and tasteless, which exists in cement, sandstone and natural marble. This radioactive gas is easy to accumulate in the underground enclosed space. First, it is the gas that moves freely in the soil and rock gap under the foundation, and can enter the room through any gap. In addition, the cement, granite and other decorations in underground buildings also have associated radioactivity, which will accelerate the accumulation of radon. Radon pollution is second only to smoking, which is the second inducement of lung cancer, and it is harmful to the reproductive system

benzene smells a little fragrant

benzene is a colorless liquid with special aromatic smell. The uncomfortable faint fragrance you smell in the decoration is likely to be benzene. It usually exists in paint additives and thinners, and benzene is also found in additives of waterproof materials, decorative materials or adhesives used in wood-based panel furniture. Benzene is irritating to skin, eyes and upper respiratory tract. Long term inhalation may cause aplastic anemia

formaldehyde stimulates mucosa

free formaldehyde is the focus of attention. At present, formaldehyde is the raw material for manufacturing synthetic resin, paint, plastic and man-made fiber. It is also an important raw material for manufacturing urea formaldehyde resin glue and melamine resin glue in the wood-based panel industry. Materials used in interior decoration or furniture, such as plywood, blockboard, medium density fiberboard, particleboard, wall covering, wallpaper, chemical fiber carpet, paint, coating, adhesive, etc., contain formaldehyde or chemical substances that can be hydrolyzed to formaldehyde to varying degrees. These residual or decomposed formaldehyde will gradually release into the surrounding environment, and the longest release period can reach more than ten years

chronic formaldehyde poisoning shows tears, itchy eyes, dry and itchy throat, cough, asthma, hoarseness, chest tightness, skin itching, etc. Previous studies have shown that long-term low-dose exposure can lead to decreased immune function, neurasthenia and memory loss; Long term irritation of respiratory tract leads to chronic respiratory diseases and decreased lung function

ammonia smell is very pungent

ammonia mainly comes from concrete admixtures in building materials. In winter construction, admixtures with urea and ammonia as the main raw materials are often added to the concrete wall to protect the concrete from freezing. These additives will be reduced to ammonia in the wall with the change of environmental factors and slowly released from the wall, resulting in the increase of ammonia concentration in the indoor air

followed by additives and brighteners in interior decoration materials: wooden boards containing urea component adhesives and coatings with ammonia as additives and brighteners

the smell of ammonia is relatively strong, and most people can detect it. Long term exposure to ammonia may cause skin pigmentation or finger ulcer and other symptoms; After inhaling a large amount of ammonia in a short time, there may be tears, sore throat, hoarseness, cough, bloody sputum, chest tightness, dyspnea, accompanied by dizziness, headache, nausea, vomiting, fatigue and other symptoms. In severe cases, pulmonary edema, adult respiratory distress syndrome, and respiratory tract irritation may occur

tvoc makes people dizzy

the World Health Organization defines total volatile organic compounds (TVOC) as compounds with boiling points ranging from 50 ~ 100 ℃ to 240 ~ 260 ℃. Its main components are aromatic hydrocarbons, halogenated hydrocarbons, oxygen hydrocarbons, aliphatic hydrocarbons, nitrogen hydrocarbons, etc., up to more than 900 kinds, some of which have been listed as carcinogens, such as vinyl chloride, benzene, polycyclic aromatic hydrocarbons, etc. TVOC mainly comes from building materials, interior decoration materials, household and office supplies, household gas, coal, tobacco smoke, etc

it mainly affects the central nervous system, causing dizziness, headache, weakness, chest tightness and other symptoms; Sensory irritation, uncomfortable smell, irritation of upper respiratory tract and skin; Affect the digestive system, resulting in loss of appetite, nausea, etc; In addition, it is suspected that there are local tissue inflammatory reactions, allergic reactions, and neurotoxic effects. Experts said that the sour taste in ordinary families may be the taste of TVOC

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