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    Home > Coatings News > Paints and Coatings Market > Xi'an Quality Supervision Bureau tested the air quality of 10 newly installed houses 6 formaldehyde exceeded the standard

    Xi'an Quality Supervision Bureau tested the air quality of 10 newly installed houses 6 formaldehyde exceeded the standard

    • Last Update: 2021-02-14
    • Source: Internet
    • Author: User
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    China Paint Network
    News: Recently, there are media reports that Hunan Changsha resident Mr. Sun's son's wedding room after two months of decoration, but the taste of the room is still very squeamish, so please the local quality inspection hospital to test the air. The results showed that indoor formaldehyde, benzene, xylene and TVOC (total volatile organic compounds) were seriously exceeded.
    In order to test the air quality of the renovated house, the media in joint xi'an City Quality Supervision Bureau recruited 10 newly renovated houses of the public, 10 houses for free testing, found that 8 air quality is not qualified.
    recent years, the indoor air quality of newly renovated houses has been paid more and more attention, but many citizens have a misconception about the circumstances under which they can stay.
    2014, Ms. Lu, a resident of Xi'an, bought her son's wedding house near the East Second Ring Road. She heard others say that the house can be hung for three months almost live, did not expect to dry for a few months, the house still smell.
    can I stay in my new room? China Business Daily reporter interviewed 10 citizens, 3 people think the shortest period is three months, 1 person think the longer the better, 3 people think that at least one year or more, two people think that should have a summer re-stay, summer temperature is high, conducive to loose taste, and 1 person think that if the test no problem can stay.
    tet test results
    8 unqualified
    this year, "March 15" before, China Business Daily in cooperation with Xi'an Municipal Quality Supervision Bureau to collect 10 newly renovated families, and provide them with free indoor air quality testing, each household testing two points, testing items are: formaldehyde, benzene, ammonia, radon, TVOC (total volatile organic compounds). Chen Jianyun, director of the decoration engineering quality supervision station of Xi'an Product Quality Supervision and Inspection Institute, said that from the test results of 10 households, 8 have different toxic gas exceeding the standard, including two ammonia exceeding the standard; From the type of gas exceeding the standard, 6 formaldehyde exceeding the standard, 5 ammonia exceeding the standard, 4 TVOC exceeding the standard, 2 benzene exceeding the standard, this test did not find the radioactive element radon exceeding the standard.
    formaldehyde
    six formaldehyde exceeded the most serious exceeding the standard nearly twice
    According to technical standards, the total indoor formaldehyde concentration must not be greater than 0.10 mg/m3. Formaldehyde concentrations reached 0.19 mg/m3 in a home master bedroom and 0.11 mg/m3 in the living room, 0.13 mg/m3 in one family bedroom and 0.12 mg/m3 in the living room.
    in 6 families with formaldehyde exceeding the standard, the bedroom formaldehyde exceeds the standard of 6 households, the living room formaldehyde exceeds the standard of 3 households. Formaldehyde exceeded the standard of the family, one family only detected the master bedroom and second bedroom, did not detect the living room.
    : called the indoor environment "number one killer
    formaldehyde is regarded as the indoor environment 'number one killer'. It has been reported that leukemia accounts for about one-third of children's blood malignancies, and among the high-risk factors for leukemia, the carcinogenic effects of radon, benzene and formaldehyde are more certain.
    Zhongmin, chief physician of the Respiratory and Critical Care Medicine Department of the First Annex Hospital of The University of Hong Kong, said that harmful gases such as formaldehyde, ammonia and benzene are obviously irritating to the respiratory tract. In a house with high formaldehyde concentrations, you will feel your eyes open, which can cause nausea, vomiting, coughing, chest tightness, wheezing, emphysema. Long look forward to in the formaldehyde exceeding the standard of the house, can cause chronic respiratory diseases, female menstrual disorders, pregnancy syndrome, leading to fetal malformation, neonatal physique and so on.
    Source: Artificial sheet, chemical fiber carpet, foam, etc
    Chen Jianyun said, newly renovated house, formaldehyde mainly from artificial sheet, chemical fiber carpet, foam,
    paint
    ,
    paint
    and so on. Testing in the bedroom formaldehyde exceeding the standard more and placed a larger wardrobe, some families in the bedroom laying wooden floors, and artificial sheeting, especially the use of unqualified artificial plate, is also an important factor causing the bedroom formaldehyde exceeding the standard. In addition, new curtains in some homes may also cause formaldehyde to exceed the standard.
    Prevention and control: wipe furniture curtains washed with water and then hang
    Chen Jianyun said, first of all, from the source of control, buyers install building materials, especially when buying artificial sheeting, try to ask the merchant or view the relevant inspection report. When the furniture into the room, according to formaldehyde soluble in water characteristics, it is best to wipe the furniture with water every day, accelerate the dissolution of formaldehyde volatilization. In addition, there is formaldehyde on textiles, therefore, just bought home curtains do not hang in a hurry, can be placed in the ventilation area to dry for a period of time, it is best to wash once and then hang.
    ammonia
    5 ammonia exceeded the standard of one bedroom nearly 3 times
    in this test, 5 were tested for household ammonia exceeding the standard, the most serious one of the total concentration of 0.57 mg/m3, and according to technical standards, indoor ammonia concentration must not be greater than 0.20 mg/m3, the main bedroom also has ammonia exceeding the standard, the concentration of 0.23 mg/m3. One family's living room was over-standard with a concentration of 0.38 mg/m3, and the children's room had an ammonia concentration of 0.25 mg/m3.
    : Inhaling ammonia can cause breathing difficulties
    ammonia is a colorless gas with a strong irritating odor and is easily soluble in water. Xi'an Medical College affiliated hospital respiratory director Wei Wei said that ammonia is more irritating, mild inhalation of ammonia has the symptoms of poisoning: rhinitis, pharyngitis, sore throat, hoarse pronunciation. Ammonia into the trachea, bronchopulmonary can also cause coughing, such as severe hematoma and pulmonary edema, breathing difficulties. They had seen an asthma sufferer because they were looking forward to a newly renovated house, which induced the illness.
    sources: bathroom anti-odor, poor quality glass glue, etc
    Chen Jianyun said, ammonia mainly comes from concrete antifreeze, decorative materials in additives, whitening agents and so on. Ammonia produced in life, a lot of people from bad habits, such as human excreta odor also contains ammonia, now high-rise housing, many families have poor bathroom ventilation, high humidity, if the flush is not clean, will cause anti-smell, produce ammonia. However, the greater harm to the human body ammonia mainly comes from the decoration of the use of glass glue, especially poor quality glass glue, such as basins, toilets and other bonding should be used.
    Prevention and control: the best use of S elbow under the basin
    for the bathroom anti-smelling ammonia, Chen Jianyun said, such as the basin under the best use of S elbow, but now are the ground PVC hose and folded hose through the diameter difference plugged in the connection, so that the resulting gap is easy to emit odor, the public can wrap the folds of the folds after the folds of the water pipe folds and then insert the ground PVC hose, which can also play a role in the odor. For the ammonia emitted by glass glue, because ammonia is volatile, according to the size of the use, the general glass glue curing ventilation can be dispersed for about a week.
    TVOC
    4 TVOC exceeded the most serious excess more than twice the
    test of 10, 4 TVOC (total volatile organic compounds) exceeded the standard, one bedroom TVOC concentration reached 1.47 mg/m3, and the technical standard requirements are not greater than 0.60 mg/m3, the living room TVOC concentration also reached 1.1 mg/m3. Two other bedrooms exceeded the standard, one with a concentration of 1.1 mg/m3 and the other with a master bedroom of 1.05 mg/m3.
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