室内装修致空气污染的研究

目的 了解装修所致室内空气污染状况。方法 以装修3个月的住宅为短时间组，以装修1年的住宅为长时间组，以装修10年以上的住宅为对照组。分别测定空气中的一氧化碳、二氧化碳、甲醛、COD含量。结果 4项指标中，一氧化碳、二氧化碳浓度在3个组中无显差异。装修3个月的住宅，甲醛和COD的浓度超标率均为100％；装修1年的住宅，甲醛和COD浓度超标率分别为72％和100％；装修10年以上的住宅，甲醛和COD的浓度超标率分别为8％和0。短时间组的甲醛和COD浓度明显高于长时间组；长时间组甲醛和COD浓度明显高于对照组。通风前后甲醛浓度差异具有显性。结论 在新装修住宅中甲醛和COD污染较严重，随着装修时间的延长，甲醛和COD浓度明显下降，通风后甲醛浓度低于通风前。

Study on the Indoor Air Pollution resulted from Interior Decoration

Object To observe the indoor air pollution from interior decoration.Methods To select the house decorated different time, the concentration of CO, CO 2, COD and the formaldehyde in indoor air are measured.Results The concentration of CO, CO 2 was not significantly different between groups, but the COD and the formaldehyde is highter than the control's, and the over sanitary standard rate of the air samples was 100% in the group of 3 months after decoration 1 year after decoration, the over sanitary rate of the formaldehyde and the COD was 72% adn 100% individually. The ventilation can decrease in of the formaldehyde and the COD obviously.Conclusion In newly decoration of house, the indoor air was polluted by the formaldehyde and the COD seriously, and their concentration can lower with ventilation and passage of time.