[ Chinese wardrobe net ] Autumn is the most comfortable season of the year. In this season, people like to open the windows of their homes to enjoy the natural wind. In this season, the amount of formaldehyde released from furniture will also decrease with the temperature and humidity of the air, which makes the “killerâ€, the number one killer of indoor environmental pollution, a good opportunity!
Where is the indoor formaldehyde pollution?
Long-term formaldehyde pollution in our living room, 99% from wood-based panel products.
According to statistics, a total of more than 100 artificial panels are required for the furniture and decoration of a common living room (including floors, wooden doors, panel furniture, etc.). Regardless of particle board, MDF (MDF) or plywood, urea-formaldehyde-based adhesives are used in large quantities in the manufacture of such wood-based panels. Urea-formaldehyde resins are direct compounds of formaldehyde and urea. In general, the amount of urea-formaldehyde resin used is about 4kg per 3 square meters of conventional thickness of wood-based panels, which is equivalent to about 1kg of formaldehyde raw materials.
The chemical properties of urea-formaldehyde resins are unstable. In an indoor environment, decomposition occurs gradually, and formaldehyde is released again. This release will be accompanied by the life of wood-based panel furniture. Due to the different process grades, the formaldehyde release grade of wood-based panels is classified into E2 grade, E1 grade or even E0 grade, but no matter what grade, when these wood-based panels with long-term formaldehyde release are widely used in limited living space, formaldehyde The cumulative excess risk becomes unavoidable. Even some surveys claim that about 80% of new homes in China face excessive formaldehyde.
Pay attention to seasonal fluctuations in formaldehyde emission
The formaldehyde release rate of wood-based panels is positively correlated with the temperature and humidity of the environment.
In the summer when temperatures and humidity are extremely high, formaldehyde release enters an outbreak with a release rate equivalent to 1.5-2 times that of other seasons. Due to the habit of blowing air conditioners in summer, the cumulative effect of this high-release release poses the most terrible health risks to humans.
The cool climate of autumn and good indoor ventilation can greatly reduce the concentration of formaldehyde. But autumn is the peak season for home improvement. If you are neglecting formaldehyde in this period, you may bury a formaldehyde "time bomb" for other seasons. The statistics of formaldehyde indoor monitoring show that in the spring and autumn, the room that does not exceed the standard will have serious formaldehyde counterattack in about 30%-40% in summer.
In winter, due to low temperature and dry air, the natural release rate of formaldehyde is the lowest. However, in the north, the room with heating is closed at the end of the month, the temperature is constant at around 26 degrees, and the amount of formaldehyde enclosed in the room is not lost in summer.
Key areas need to be "strictly guarded against death"
Due to the insurmountable long-term cumulative effect of formaldehyde, for some particularly important living areas, it is necessary to fully guard against the death. The following are considered to be the most important considerations:
Children's room: The child's breathing rate is 1.5-2 times that of an adult, and the time spent in a bedroom is about 1.5 times that of an adult. Long-term low-dose respiratory formaldehyde can easily lead to developmental disorders of children's immune system, mental retardation, and induction of acute childhood leukemia and asthma.
Marriage and childcare: The population of childbearing age is a sensitive group of formaldehyde. There are definite clinical cases that indicate long-term low-dose exposure to formaldehyde may lead to male infertility and female physiological disorders. It is especially harmful to pregnant women, which may lead to pregnancy poisoning, fetal hypoplasia, miscarriage or stillbirth.
Small bedroom: The formaldehyde released by the furniture can easily affect the air safety of the small bedroom, especially for the rooms with poor ventilation and ventilation. Even in healthy adults, long-term low-dose inhalation of formaldehyde may cause respiratory diseases and skin irritation, and induce serious diseases such as nasopharyngeal cancer, sinus cancer, brain cancer, colon cancer, uremia, and leukemia.
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