Formaldehyde volatilization lasts for 1520 years.

2022-07-22
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After the house is decorated, many people choose to move in after half a year, which has let harmful gases, especially formaldehyde, volatilize. As everyone knows, the volatilization time of formaldehyde is as long as 15 to 20 years. If the decoration is improper, no matter how the volatilization is completed, it is difficult to ensure that formaldehyde does not exceed the standard. How to prevent indoor air pollution during decoration? The reporter specially invites the quality supervision personnel to give you some tips

>& gt;& gt; Related links: Tips for furniture purchase there are seven ways to reduce formaldehyde concentration

during the "quality month" in September, Wuxi Bureau of quality supervision specially carried out free indoor air testing activities for residents of 30 urban households who had been decorated for less than half a year. Yesterday was the first day of testing. The reporter specially followed the staff of Wuxi Institute of product quality inspection to the residents' homes for sampling. According to zhaoxiaogang, an engineer of the Institute, from the results of the free testing activities carried out in the past, many newly decorated residents' homes have air pollution. The main pollutants are benzene, toluene, xylene and formaldehyde. The first three are easy to volatilize, and formaldehyde is the most difficult to volatilize. The volatilization period will be as long as 15 to 20 years, and some improperly decorated families even seriously exceed the standard of formaldehyde. Formaldehyde has a great impact on human health, especially children's health, and can cause asthma and cancer in serious cases

then why is there formaldehyde pollution during decoration and how to prevent it? The reporter asked Engineer zhaoxiaogang to make a detailed introduction

control pollution sources: select qualified environmental protection building materials

to prevent indoor air pollution in the decoration process, we must first control it from the source. Using decoration materials that meet national standards and have less pollution is an effective measure to reduce the content of indoor toxic and harmful gases. For example, selecting coatings and adhesives that meet the requirements of environmental indicators, and materials that are pollution-free or less polluting can greatly reduce the content of benzene in indoor air; Purchasing and using wood products that have been specially baked can effectively reduce the release of formaldehyde

why did ancient furniture not have the problem of formaldehyde exceeding the standard? Zhao Xiaogang said that because wood is generally transported by water, water will absorb a large amount of formaldehyde, and it will be fully baked, which is conducive to the volatilization of harmful gases. What about modern furniture? All logs are transported in closed containers. After being transported to the furniture factory, the manufacturer generally considers the output of furniture and will not bake the wood specially. In order to leave the factory quickly, a large amount of adhesives will be used, which makes formaldehyde difficult to volatilize, and it is easy to cause air pollution after consumers buy it home

simple decoration: avoid the superposition of pollution

the decoration of family rooms should be practical and simple, and excessive decoration is easy to lead to the superposition effect of pollution. For example, when some consumers pave solid wood floors for their new houses, they also need to pave a layer of blockboard below, in order to make the floor more flat and feel better when stepping on it. From the perspective of environmental protection, this over decoration is actually unnecessary. Once the blockboard laid on the lower layer has quality problems, formaldehyde and other toxic and harmful gases will spread and release outward through the upper solid wood floor. At that time, whether it is replaced or removed, the cost of consumers will be very high

Zhao Xiaogang said that some families also like to stick various colors of wallpaper and wallpaper on the wall to make the room more beautiful, but in fact, it is also easy to cause excessive formaldehyde. Why? Because sticking wall cloths and wallpaper requires a lot of glue, which is not conducive to the volatilization of toxic and harmful gases in coatings and paints, but will absorb some toxic and harmful gases. Moreover, when decorating, some decoration companies will send some glue to customers. Some consumers think it is cheap, but in fact, some glue is of poor quality, which will cause greater harm after use

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