Everyone has a home improvement dream in their hearts - but whether it is rural or Mediterranean, everyone wants to live in, not only a new look, but also "green."
In fact, the concept of environmentally friendly decoration has long been proposed. There are also many environmentally friendly materials available for you to choose from, but will you really decorate it? To make your home environmentally friendly, what elements should you really pay attention to?
This answer is not satisfactory from the recent test results of Hangzhou Quality and Technical Supervision and Inspection Institute. On the 23rd of last month, this newspaper was commissioned by Hangzhou Quality and Technical Supervision and Inspection Institute to collect freely tested owners. Indoor air quality.
The results of the recent tests have been released, but the situation is not optimistic. In the end, 9 households registered by the newspaper participated in the test, and 7 of them exceeded the standard. The formaldehyde concentration of the one with the highest standard was even more than three times that of the national standard. Everyone is decorated by a decoration company.
The highest exceeds the standard by more than three times
Formaldehyde is the "invisible killer" in the decoration
“Understandâ€: According to GB50325-2010 “Code for Indoor Environmental Pollution Control of Civil Building Engineering†jointly issued by the Ministry of Housing and Urban-Rural Development and the General Administration of Quality Supervision, Inspection and Quarantine, the indoor environmental quality acceptance should be submitted at least 7 days after the completion of the project. Before the project is delivered for use, the civil construction project using natural ventilation shall be carried out 1 hour after the external doors and windows are closed.
Most of the 9 homeowners who have been collected through this newspaper have just finished renovations in the first half of this year. Some furniture has already entered the market, while others have not yet been soft-packed.
This city quality inspection institute mainly tests three indicators of benzene, formaldehyde and TVOC (total volatile organic compounds). These pollutants are also more likely to exceed the standard in new houses.
Let me talk about the first indicator benzene.
Benzene is mainly found in chemical products such as paints, coatings, latex paints, and various decorative materials containing benzene. After the benzene series is inhaled by the human body, central nervous system anesthesia can occur, which can inhibit the hematopoietic function of the human body.
The test results showed that none of the 9 households found benzene exceeding the standard. The highest was Liu’s family in Harbin Jiayuan. The benzene concentration was 0.013 mg/m3, but it was far below the national standard of 0.09 mg/m3.
The second indicator, TVOC, may be unfamiliar to the interior decoration process. In fact, it exists in many decoration materials, such as paints, coatings and adhesives.
It is reported that the indoor TVOC concentration is usually between 0.2 mg/m3 and 2 mg/m3, and even in the improper decoration construction, it can even be dozens of times higher. TVOC may cause imbalance of immune level, affect central nervous system function, and may have symptoms such as dizziness, headache, lethargy, weakness, chest tightness, etc., and may even affect the digestive system, loss of appetite and nausea.
In this test, 3 households were higher than the national standard of 0.5 mg/m3, of which Mr. Liu of Harmony Jiayuan was the highest, exceeding the standard by more than 4 times, and the other two households were 0.68 mg/m3 and 0.58 mg/cube respectively. Meter.
Benzene has passed, and only one-third of TVOC's households have exceeded the standard, but the situation of formaldehyde is somewhat serious.
For ordinary dwellings, the concentration of formaldehyde should be ≤0.08 mg/m3. The harm of formaldehyde need not be said, its excessive standard will lead to abnormal olfactory, abnormal immune function such as lung and liver, and even affect the health of newborns. Among the 9 households, 7 of them have exceeded the national standards. The highest is Desheng New Village, Mr. Fu, the formaldehyde concentration is 0.268 mg/m3, which is more than 3 times higher than the standard.
In the test results of the other 10 owners collected by the Hangzhou Quality Inspection Institute, the formaldehyde was also exceeding the standard, and only two households were lower than the national standard.
Dark curtains or hidden "pollution traps"
It is best to soak the decorative cloth before use.
“Understandâ€: Experts from the Municipal Quality Inspection Institute suggest that consumers should first select environmentally-friendly decoration materials, and pay attention to the selection of environmentally-friendly materials that meet the requirements of national standards, and strive to fundamentally reduce indoor pollution. Artificial boards such as plywood, blockboard, medium density fiberboard and particleboard, wood flooring and wall coverings, wallpaper, chemical fiber carpets, foams, paints and coatings will release a variety of volatile toxic substances that are harmful to human health.
“The closing time of the doors and windows of this inspection activity is controlled by the owner, and most of the owners have moved the furniture into the inspection room. Various conditions may have an impact on the test results, so the limit value specified by the national standard can only be used as a reference.†For this The test results, the person in charge of the Hangzhou Quality Inspection Institute said that the concentration of pollutants in most of the rooms exceeded the standard limit value, the situation is not optimistic.
There is also a misunderstanding that experts have asked us to tell readers: environmentally friendly materials are not 100% non-polluting materials, but contain relatively low levels of ingredients. If the matching of building decoration materials is unreasonable, or the decoration materials are used in a large amount, the harmful substances in the room will often exceed the carrying capacity of the house space.
In the past, people thought that the more luxurious the home decoration, the better. In fact, the more luxurious the decoration, the more decoration materials used. In the case that the unit area of ​​the room is constant, too much material means the total amount of various harmful elements increases. Big.
In addition, the experts of the Municipal Quality Inspection Institute also specifically mentioned the soft pollution that is easily overlooked by everyone.
"In many people's concepts, curtains, tablecloths, sofa covers, curtains, carpets, and other decorative fabrics, many people use them directly after buying them." Isn't it? In the face of the reporter's question, the expert explained that, in fact, decoration In the production process, additives such as synthetic resins and dyes and finishing agents are often added, and most of them contain formaldehyde. “Especially dark fabrics and specially treated fabrics such as anti-wrinkle and soft, have a higher formaldehyde content.â€
Therefore, don't be busy after buying the decorative cloth. It is best to soak it in clean water first to reduce the amount of formaldehyde remaining on it. When buying, don't buy pungent odor, the lighter the color, the safer, and pay attention to the dye should have no odor, strong stability and not easy to fade.
It’s best to live in the summer after the renovation.
There are a few points to remember
If the formaldehyde in the home exceeds the standard, don't panic because there are still many ways to improve or manage it.
â— The experts of the Municipal Quality Inspection Institute said that the most effective way to solve indoor air pollution is ventilation. More windows and ventilation should be used to allow indoor polluted air to be emitted. Strengthening the ventilation frequency is conducive to the emission and discharge of harmful substances. It is not advisable to stay in the house immediately after renovation. If conditions permit, it is better to stay in the summer after the release period of harmful gas. High temperature, high humidity and negative pressure will accelerate the emission of harmful substances.
Even after your stay, pay special attention to indoor environmental factors, fully consider the amount of ventilation in the indoor space, and do not cover natural ventilation as much as possible. If natural ventilation is insufficient, forced mechanical ventilation such as central air conditioning (with fresh air function) can be added to improve indoor air quality.
â— Green plants are "scavengers" that remove pollution from decoration. Indoor planting plants such as spider plant, aloe vera, and tiger peony can also reduce the concentration of harmful substances in the room. In addition, some activated carbon can be placed to adsorb harmful gases indoors.
â— Newly renovated houses and newly purchased furniture, or when the indoor air quality is not good, it is best to have a qualified inspection unit to test. According to the test results, the degree of pollution and the main harmful components are determined, and then according to the specific conditions of the harmful substances, appropriate methods are selected to reduce and eliminate the pollution.
There are many reasons for indoor environmental pollution. Generally speaking, it should be considered from four aspects: first, the rationality of the design of the living room; second, the selection of environmentally friendly materials; third, the manufacture of environment such as ventilation; fourth, furniture and The choice of accessories.
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