Where does the formaldehyde in the new house come from?

(1) plywood, blockboard, medium density fiberboard, particleboard and other artificial boards for interior decoration. Formaldehyde is the main component of adhesive used in wood-based panel production, and the residual and unreacted formaldehyde in the panel will be gradually released into the surrounding environment, which is the main body of formaldehyde in indoor air.

⑵ Wood-based panel furniture. In order to pursue profits, some manufacturers use unqualified plates or use inferior glue when bonding veneer materials, and formaldehyde in plates and glue seriously exceeds the standard.

(3) Other decorative materials that contain formaldehyde and may be distributed to the outside world, such as wall covering, wallpaper, chemical fiber carpet, paint, coating, etc.

Extended information formaldehyde also comes from other aspects of life.

1, formaldehyde can come from cosmetics, detergents, pesticides, disinfectants, preservatives, ink, paper and so on.

2. When foam strips are used as heat-proof, cold-proof and heat-insulating materials for buildings, the foam will age and deteriorate under the action of light and heat, resulting in compounds and formaldehyde.

3. Hydrocarbons can produce formaldehyde gas through light combination, and organic substances can also produce formaldehyde through biochemical reaction. There are also a lot of formaldehyde in the combustion exhaust gas. For example, burning 1000L gasoline can produce 7kg of formaldehyde gas, and lighting a cigarette can even produce 0. 17mg of formaldehyde gas.

4. Formaldehyde also comes from interior materials, such as seat covers, cushions and roof linings, and the formaldehyde emission of new cars is the most prominent.

5. Formaldehyde also comes from outdoor air pollution, such as industrial waste gas, automobile exhaust and photochemical smog. , to a certain extent, can emit or produce a certain amount of formaldehyde.

References:

Baidu encyclopedia-formaldehyde