1. Harm of formaldehyde 1. Stimulation. Formaldehyde is mainly irritating to skin and mucosa, and can be combined with protein. When inhaled in high concentration, it can cause severe irritation and edema of respiratory tract, eye irritation and headache.
2, allergies. Direct exposure to formaldehyde can cause allergic dermatitis, pigmentation and necrosis, and inhalation of formaldehyde can induce bronchial asthma.
3, leading to gene mutation, which can cause nasopharyngeal tumors.
4. Headache, dizziness, fatigue, nausea, vomiting, chest tightness, sore throat, anorexia, palpitation, insomnia, memory loss and autonomic nervous disorder may also occur. Long-term inhalation by pregnant women can lead to fetal malformation or even death, while long-term inhalation by adult men can lead to sperm malformation or even death.
Second, the source of formaldehyde is 1 Wood-based panels such as plywood, blockboard, medium density fiberboard and particleboard used for interior decoration. Because formaldehyde has a strong adhesion, it also has the functions of strengthening the hardness of the board, preventing insects and preventing corrosion, so the adhesive used in the production of wood-based panels at present is urea-formaldehyde resin with formaldehyde as the main component;
2. It is furniture made of wooden boards. The results of a comparative test conducted by a consumer association in a city show that among 60 sets of medium density furniture samples, 29 sets of formaldehyde exceed the standard, and the over-standard rate is as high as 48.23%;
3. Other decorative materials containing formaldehyde, such as white latex, foamed plastics, paints and coatings. Experts specially reminded that latex adhesives are widely used in wall treatment in wood engineering and decoration, especially the formaldehyde in latex sealed on the wall is difficult to remove;
4. Textiles for interior decoration, including bedding, wall cloth, wallpaper, chemical fiber carpet, curtains and fabric furniture. In textile production, in order to improve wrinkle resistance, waterproof and flame retardancy, some additives containing formaldehyde are often added.
Third, formaldehyde detection and treatment of newly renovated houses and newly purchased furniture, or when the indoor air quality is not good, detection; It is not advisable to move in immediately after renovation, and windows should be opened for ventilation, so that indoor polluted air can be distributed; If the formaldehyde in the indoor environment has exceeded the standard, it should be handled in time. At present, formaldehyde treatment products mainly include: air purifier, which has a certain adsorption effect on indoor formaldehyde and other pollutants; Deodorant and formaldehyde scavenger, used in decoration engineering, can effectively reduce free formaldehyde in wood-based panels; Harmful gas adsorbers and furniture adsorbents can catalyze the decomposition of indoor formaldehyde and other harmful gases; Formaldehyde sealing agent, coated on unpainted furniture interior wallboard and artificial board, can reduce formaldehyde release; Using plants for purification, chlorophytum, aloe and agave can reduce the indoor formaldehyde concentration.