1 years after the renovation of formaldehyde but experts teach you to stay away from the decoration pollution

The weather has warmed up, and it has been a year of renovation. Recently, the Consumer Council of Shenzhen City, the newly renovated home for the family of indoor air quality testing. It was found that up to four of the residential toxic gas pollution exceeded, partially completed 6 months or more to reach the "safe period" of the residential also failed to escape. Buy new houses, renovation and occupancy, originally is a great pleasure in life, but test results make people have to re-examine the decoration and pollution, is resplendent in gold and jade green and healthy and comfortable? As the experts say, "the air we breathe indoors is often worse than the outside."". Reporters interviewed experts, teach you to get rid of the pollution of the reliable method of renovation.
Reason: pollution comes from three materials.
For the decoration of formaldehyde, benzene, radon and other sources of pollutants, experts said, at present, China's indoor decoration pollution mainly from three categories of materials:
1 artificial plate type
Does not meet the environmental standards of artificial decoration plate, and the use of these panels made of composite flooring, furniture, etc., often excessive formaldehyde. Formaldehyde is a colorless gas, has a special pungent odor, in the list of top second toxic chemicals in our country, the WHO has identified formaldehyde carcinogenic and. Indoor formaldehyde release period is generally 3 to 15 years, will irritate the eyes, nose, long-term exposure to low concentration of formaldehyde will cause headache, dizziness, fatigue, feeling obstacle, reduced immunity, and sleepiness, memory loss or neurasthenia, mental depression
2 Paints, coatings, adhesives
Use of paint, paint, waterproof materials, as well as some additives, diluent containing benzene. Benzene series is a colorless and transparent carcinogen, not only has no pungent odor, but also with a slightly aromatic concentration. If in the home often feel sense of sleepy, dizziness, rapid heartbeat, even unconsciousness, convulsions, etc., it is necessary to guard against benzene pollution. Short time inhalation of a large number of benzene can cause acute mild poisoning, manifested as dizziness, headache, nausea and cough, long-term low concentration contact benzene can occur chronic poisoning, causing aplastic anemia, and even leukemia. The benzene in the indoor air is volatile, and the air can be discharged for one or two months.
3 stone, marble, gypsum, ceramic tile and other stone decoration materials, including harmful substances radon. Radon is a colorless, odorless radioactive gas, it is second only to smoking a second lung cancer causing factors, in the long run, radon radiation environment, respiratory system will exposed to radiation damage, may also induce leukemia and infertility.
Myth: the longer the time, the smaller the pollution
Shenzhen Consumer Council in December last year by the official website, micro-blog and WeChat and other public network platform for the city's public collection of renovation completed more than 7 days, less than a year of family house as an object of investigation. During the collection period, a total of 574 families received valid registration, the survey from the random selection of 120 sets of residential, commissioned by the authority of the state mandatory standards for indoor air quality testing. The results show that 120 sets of residential, there are as many as 47 sets of indoor air quality is not up to the requirements of the national standard.
Shenzhen Consumer Council in accordance with the length of the completion of the renovation, the residential sample is divided into 4 grades. Among them, the completion of the renovation of 39 sets of housing for more than 7 days, 1 month or less, unqualified have 20 sets, the unqualified rate was 51%; completed residential more than 1 month, 3 months less than 39 sets, unqualified has 14 sets, the unqualified rate of about 36%; completed more than 3 months, 6 months or less of 24 sets, unqualified has 8 sets, a failure rate of about 33%; unexpected is, in the completed more than six months, within 1 year of 18 sets of residential, five sets of unqualified, unqualified rate is as high as 28%.
Experts said that the furniture, sheet metal pollutants such as formaldehyde release is a continuous, long process, to take more than a decade, or even longer to fully cleared, but for qualified environmental protection plate, after several months of ventilation can make the pollutants released into a flat suspended, can reach the national standard. But it is worth noting that there are many factors affecting the amount of formaldehyde release. Studies have shown that room temperature rise of 10 degrees Celsius, indoor air formaldehyde concentration will rise 3 times. When room temperature exceeds 20 degrees Celsius, furniture and all kinds of decoration materials in the formaldehyde will be in active state, very volatile, if the room temperature continues to rise, the release of formaldehyde will also increase exponentially. This is also the summer people easy to feel the room is the cause of the pungent smell. In addition, the frequency of use of furniture also affect the formaldehyde volatile. The more open the doors, drawers, the release of formaldehyde will be more. At present, most furniture with veneer and paint surface is covered by a sealing plate, to prevent the leakage of formaldehyde, but furniture inside the screw hole, slotting department can not be completely closed, inevitably release a small amount of formaldehyde. If there is damage and cracks on the surface of the furniture, it will also cause the leakage of formaldehyde, the release of increased.
Therefore, it is generally believed that the longer, less pollution, one said that does not necessarily set up, and sometimes even after the completion of the renovation of 1 years, the formaldehyde content is higher than half a year ago.
Weapon: the environmental indicators included in the contract
Decoration pollution caused by the problem is so serious, however, most owners do not know. In this acceptance test of 120 residential units, the owners and decoration companies in the decoration of the contract for the air quality agreement acceptance of the terms of only 14 sets. In that emphasis on home improvement air quality only one percent of consumers. This will give an opportunity to illegal decoration company, Jerry

In fact, formulated by the State Department of housing and urban rural development of national standard "residential interior decoration decoration project quality acceptance norms" clearly stipulates the environmental protection of this project, residential interior decoration decoration works acceptance should be indoor environmental pollution detection, radon, formaldehyde, ammonia, benzene and TVOC should conform to the requirements of the specification. Owners in the purchase, renovation and buy furniture to carefully signed contract, environmental indicators will be written into the contract, and please have third-party testing organization China Metrology Accreditation of formaldehyde, benzene, radon and other pollutants were detected, qualified before signing.
Need to be reminded that, even if each kind of building materials, furniture are environmentally friendly standards, but if the amount is too much, it may make the overall pollution. Therefore, if the conditions permit, then please check before the inspection agencies to detect, this time the standard is really suitable for people living.
Experts also remind consumers, some products are only absorb formaldehyde, reduce the formaldehyde content in the air, palliatives, formaldehyde to release again. Some of the products is a "surface sealant, spray in the furniture surface to form a layer of protective film to prevent formaldehyde volatile gases, but this method can only be in a period of time.
In addition, some of the poor quality of chemical products may be used to generate new toxic substances, the formation of two pollution. Even with the use of formaldehyde removal agent, but also the best ventilation for a period of time to stay.
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