ABSTRACT
Objective To investigate the relation between the formaldehyde content of newly decorated houses and the time after decoration finished, which will offer an important reference to housing corporations and household. Methods The formaldehyde contents of newly decorated houses in Maoming were analyzed by colorimetry, Mar-Aug, 2003. Results The formaldehyde content in house A, in which the floor was compound floor boards, was higher than that in house B, in which the floor was wearable bricks. The formaldehyde content was not only related to the time after decoration finished, but also to the air temperature. After decoration finished, it must take half a year that the content of formaldehyde would meet the national standard limit. In consecutive testing, it was found that the content of formaldehyde would increase a little as the air temperature increased. Conclusion It must be attached importance to the formaldehyde content in the house floored with compound boards. It will need 6 months at least that the content of formaldehyde meet the requirement of the national standard after the newly house decoration.