室内空气中甲醛浓度的变化规律初探

Preliminary study of the variety of indoor Formaldehyde density

为了了解室内空气中甲醛浓度随着室内门窗关闭时间变化而变化的规律,选择了4家房子作为检测对象。通过检测发现,室内空气中甲醛浓度在室内门窗关闭4h之内,室内空气中甲醛浓度迅速增加;4h之后,室内空气中甲醛浓度达到恒定值。

The monitoring data of formaldehyde density change collected in four apartments at a newly-constructed residential building were discussed.It is indicated that the formaldehyde density indoors is increased quickly with the doors and windows of the apartments closing time delayed to four hours.However,the formaldehyde density indoors still maintains a constant level after four hours.