During the renovation process, various decorative materials such as density boards, plywood, particle board, large core boards, paints, adhesives, wooden furniture, etc., will release formaldehyde, benzene, ammonia, TVOC and other harmful substances. Therefore, decoration pollution treatment will become the most frequently used word in every decoration season. Whether in the newly opened residential areas, or in the building materials market and supermarkets, various pollution control products are placed in the most prominent position. How effective is this large number of pollution control products? Reporter conducted a survey.
market survey
What are the components of pollution control products?
The reporter saw that many building materials supermarkets and the home market have sold many types of indoor air purification products. There are three main types of products: chemical sprays, solids, and smears. The chemical spray is mainly used after decoration; the solid adsorption type can adsorb harmful gases in the room; the smearing agent is for the interior wall of the furniture or the wall surface of the interior wall.
Found that most products are not labeled
In the Lize Bridge East House (view map) near the supermarket cash register on the first floor, the reporter saw a variety of household pollution control products. Among them are Sheng Jiesen, Enkebang, Saiyan, Geweiweikang and Fuweijie. The reporter found that in addition to active carbon products, floor fungicides and some other products that have components introduced, most of the products do not specify the composition of the product. The explanation of the composition and sales staff of a few product labels is even more confusing.
Found 2 pollution control materials do not understand
The reporter noted that the composition of a certain floor sterilant includes non-ionic surfactants, alkyl quaternary ammonium salt, fruit acid, jasmine essence, and pure water; another product component that specifically targets formaldehyde, benzene, and ammonia is more puzzling. The reporter saw that its ingredients include proteins, hemicellulases, bacilli, plant extracts, and rice cellulase. The reporter does not understand what these are in the end, and it is even less clear what they have.
Prof. Guo from the Department of Chemistry of Beijing University of Chemical Technology explained that protein and hemicellulase have a little effect on the degradation of formaldehyde, benzene, and ammonia. However, how much use and how much can be used is unclear. Responsible businesses should be detailed. Informed; For plant extracts and bacilli, Professor Guo said that there are many kinds of plant extracts and bacilli, and it is impossible to determine whether there is a specific role or not.
Is it safe to use the shopping guide?
Deodorants, scavengers, activated carbon odor absorbents, and businesses all talk about removing indoor pollution. Actually, there is a big difference in usage and performance.
Found 1 shopping guide does not understand product safety knowledge
Supermarket shopping guide told reporters that strong decoration deodorant need to remove the container, inject a certain amount of clean water. When used, doors and windows should be closed. This deodorant can also be used when someone is in the house. Simply put the deodorant on the balcony when you go home. However, industry sources told reporters that when using this deodorant, there must be no one in the house, otherwise it will cause harm to the human body; in addition, the gas will take some time to volatilize, although the deodorant will be kept outdoors when returning home. However, interiors will still remain. However, these are not indicated in the product.
Found that 2 small packets of activated carbon is not effective
Activated carbon adsorption is a physical deodorization method. According to the purchase guide, the activated carbon will saturate for a period of time. Take it out and put it to the sun. You can also fry it so that you can reuse it. However, people in the industry believe that the adsorption of activated carbon is not good. In addition, according to the 150 grams of a package of activated carbon commonly found in the market, the area of ​​its effect is only 3 to 5 square meters.
The industry's view that a single pollution-control product cannot eradicate indoor air pollution, should it be blocked or dredged? Zhang Qiang, director of the World No Thieves Pollution Control Laboratory, told reporters that if environmental protection materials can be used in the decoration and environmental protection techniques are used, indoor pollution can be avoided completely.
Once pollution occurs, the products used for pollution control should be selected as long as possible, especially formaldehyde, which has a volatilization period of 3-15 years; in addition, a single method such as chemical smearing, odor masking, or using a small amount of adsorbent products is required. It is impossible to eliminate pollution completely, and comprehensive comprehensive management must be carried out in order to completely solve indoor air pollution problems.
Reminder 1 Covering scent
When formaldehyde exceeds 3 times the standard, it is generally not smelling pungent odors. Some people put indoor onions, white vinegar, cool oil, milk, pineapple, etc. This method only masks the taste produced by home decoration and does not chemically react with harmful gases. The concentration of pollutants is still volatilized by self-degradation. This method is not scientific.
Reminder 2 Plant purification is insignificant
The leaves of plants such as ivy, spider plant, tiger's nest, monstera, and vanilla grow rapidly, absorb large and large pores, and have strong absorption capacity. They can decompose formaldehyde, ammonia, and other harmful gases as nutrients for digestion and digestion, and can also remove harmful airborne pollutants. substance. However, the amount of gas absorbed by green plants is far less than the amount of gas that humans breathe. It is difficult to absorb a large amount of harmful gases in the short term, and green plants emit harmful gases at night, which should not be placed in the home, especially in the bedroom. Lots of green plants.
Reminder 3 Chemicals cohabitation
The products sold in building materials supermarkets and home plazas are mostly chemical purifiers: chemical sprays aiming at free harmful gases in the indoor air after decoration; sizing agents for interior siding and wood-based panels or interior walls that have not been closed during the renovation work Appearance. Experts said that they should try to buy branded purification products in the large formal market. Some purifying products are under the banner of "high-tech" and "environmental protection," but they use some inferior chemical synthetic substances. Although they can eliminate formaldehyde to some extent, they may also re-manufacture other pollutants and cause secondary pollution. Some poor-quality chemical sizing agents form a simple closed mask on the surface of the furniture. When the coating film ages and the weather is hot and humid, the film is prone to damage and harmful gases are released.
Practical methods to control decoration pollution can be prevented
The experts put forward simple and practical preventive measures for decoration pollution. When decorating, it is best to choose environmentally-friendly building materials and adhesives with guaranteed quality, buy branded solid wood furniture, ensure the quality of branded furniture, and provide after-sales service. If density plates are used, it is better to choose high-density board environmental protection materials; , Properly delay the time of moving in, it is best to stay after 3 months ventilation; through the air circulation, let a small amount of harmful substances in the building materials volatilize as much as possible; after a summer and then move in, the boiling point of formaldehyde is 19 degrees, the boiling point of the benzene compound is At 30 degrees, the release of these volatile organic compounds in the summer will increase significantly.
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