Where is the formaldehyde in the living room lurking?

Indoor air pollution is the cause of many diseases, and formaldehyde is an important cause of indoor air pollution. According to the statistics of the China Center for Disease Control and Prevention, at present, more than 92% of newly renovated houses in China have exceeded the standard of formaldehyde, and 76% of the formaldehyde in the living room exceeds the prescribed value by more than five times. Living in such an environment for a long time, human health will be damaged to varying degrees. Then, where is the formaldehyde in the living room lurking? How to distinguish whether the formaldehyde content of household products exceeds the standard?

The author's investigation found that formaldehyde in the home is usually hidden in the following places.

1. Plate. Natural wood itself is non-toxic. After processing, all kinds of plates have high formaldehyde content, such as brown fiber board, MDF, particle board, etc. These sheets are usually used to make finished furniture or cabinets, which will use urea-formaldehyde glue during processing. Bonding is the largest source of formaldehyde contamination. Therefore, if economic conditions permit, consumers should purchase solid wood furniture as much as possible. Even if they use board such as particleboard, they should choose products that meet the national environmental standards, and try not to place too many such panel furniture in a limited space. To reduce the amount of formaldehyde released.

2. Glue. The glue used in home decoration includes putty glue for the base layer of latex paint on the wall, white latex paste for wood board, wallpaper glue for wallpaper, etc., all containing a large amount of formaldehyde. It is understood that glue pollution is a relatively large source of pollution in the family's basic decoration.

3. Paint. Because the paint contains a lot of pungent benzene, people perceive it the most. In the home decoration, the paint is usually only used locally, and it has the characteristics of high volatilization. It can basically volatilize harmful substances by more than 70% in 3 days, so its pollution is relatively small. (Le Jun)

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