The source and prevention measures of formaldehyde

2022-07-22
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3· On the occasion of consumer protection day, the indoor environment monitoring committee of China Interior Decoration Association issued the third warning of this year &mdash& mdash; 3· 15 special warning for indoor environment. This special warning is aimed at the current class of carcinogens &mdash& mdash; Formaldehyde. How serious is the indoor formaldehyde exceeding the standard after home decoration? What are the sources of formaldehyde? How to prevent formaldehyde from exceeding the standard? The reporter interviewed songguangsheng, director of the indoor environment monitoring committee of China Interior Decoration Association

◆ four sources of formaldehyde in newly decorated houses

Director Song Guangsheng said that the main sources of formaldehyde in residents' families are: first, from plywood, blockboard, medium density fiberboard, particleboard and other man-made boards made of wood-based materials. Second, it comes from indoor furniture. Including wood-based panel furniture, fabric furniture and kitchen furniture. Third, it comes from other kinds of home decoration materials containing formaldehyde, especially unqualified white latex and coatings. Fourth, it comes from indoor decorative textiles, including bedding, wall cloth, wallpaper, carpets and curtains

◆ 60% of newly decorated houses have formaldehyde exceeding the standard

it is understood that according to the national indoor air quality and the code for indoor environmental pollution control of civil buildings, the formaldehyde emission per cubic meter of indoor air shall not be greater than 0.1 and 0.08 mg standards. The sampling results of the indoor environment monitoring committee of China Interior Decoration Association in 1000 newly decorated households in Beijing last year showed that 60% of formaldehyde exceeded the standard. According to the test data of relevant departments in Qingdao, Nanjing, Yinchuan, Chongqing, Shenzhen, Urumqi and other places in other regions, the unqualified rate of formaldehyde in newly decorated households is more than 60%. From January to July last year, Shenzhen Institute of Metrology and quality testing conducted indoor environmental tests on more than 400 houses in the city, and 90% of formaldehyde exceeded the standard

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