室内空气中甲醛污染及其变化规律探讨

Formaldehyde Pollution in the Indoor Air and its Changing Law

目的了解公共场所装修后通风方式及通风时间对室内甲醛浓度、甲醛动态变化规律及其影响因素。方法选择简单装修和精装修的宾馆、招待所各3个，分别在装修后1、2、12个月对其通风前后的室内甲醛浓度进行了测量。结果甲醛浓度在装修2个月后，可以下降20％～50％；再加上通风30min后，无论是空调通风还是自然通风，室内甲醛浓度快速下降60％～80％。结论加强室内通风换气是控制甲醛浓度的有效途径。

[ Objective] To learn the effect of ventilation time and styles on the concentration and dynamic changes of formaldehyde in the indoor air of newly- decorated public places. [ Methods] 3 finely- decorated and 3 simply -decorated hotels were selected; the concentrations of formaldehyde were measured before and after ventilation 1, 2 and 12 months after decoration. [ Results] The concentration of formaldehyde decreased by 20% -50% 2 months after decoration; when administered with 30 minutes＇ventilation, the concentration of formaldehyde decreased by 60% - 80%. [ Conclusion ] To strengthen ventilation is an effective approach to control formaldehyde concentration.