住宅新装修后不同时间室内空气甲醛监测

Monitoring of formaldehyde pollution in indoor air of the newly decorated houses

目的监测不同档次新装修住宅室内空气中甲醛污染水平,探讨防止甲醛污染的措施。方法对18户不同档次新装修住宅室内空气中的甲醛浓度进行了为期1年的追踪测定。结果室内空气中的甲醛浓度装修后明显升高,随时间推移大体呈下降趋势,6个月后超标率明显降低;不同档次装修的住房,大约在1年后都能降低到国家规定的标准以下。甲醛浓度还受室内温度、装修档次的影响。结论住宅装修完工后要加强室内的通风,至少于装修6个月后再行入住,方可减少甲醛污染对人体健康造成的损害。

Objective To survey the status of formaldehyde pollution in indoor air of the newly decorated houses.Methods Formaldehyde concentrations of 18 newly decorated houses were monitored for a peiod of one year.Results Formaldehyde concentrations in indoor air rose significantly after decoration.From long-term monitoring result,formaldehyde concentration was descending with the time,and it was significantly reduced 6 months after decoration.Although the decoration grades were different,the formaldehyde concentrations were under the national standard one year after decoration.Meanwhile the formaldehyde concentration can be influenced by interior temperature and the decoration grades.Conclusions The main influencial factors of formaldehyde concentrations in indoor air was the duration of time after decoration,indoor temperature and decoration grades.People should not move into newly decorated house witnin six months after decoration.