Moriske H J, Ebert G, Konieczny L, Menk G, Schöndube M
Federal Environmental Agency, Institute for Water, Soil and Air Hygiene, Berlin, Germany.
Toxicol Lett. 1998 Aug;96-97:319-23. doi: 10.1016/s0378-4274(98)00088-5.
The decay of ozone in indoor air was measured in a closed chamber after contact with different building materials and residential surfaces. The tested materials were: vinyl wall paper, woodchip paper, plywood, latex paint, fitted carpet, and plaster. In the summer of 1996, the entry of ozone from ambient air into indoor air during ventilation and the ozone decay in indoor air, after windows had been closed again, were studied. Measurements were done in a residential house on the outskirts of Berlin. The following results were gained: the chamber measurements showed a decay of ozone after contact with most of the materials put inside the chamber. Higher decay rates have been obtained for wall papers, plywood, fitted carpet and plaster. As described in the literature, ozone is able to react with olefines inside the materials and is able to form formaldehyde and other components. This formation of formaldehyde could also be confirmed in our investigations. Thus, in most cases, the formaldehyde concentrations were lower than the German guideline value of 0.1 ppm. The formation of formaldehyde could be prevented when a special wall paper that was coated with activated carbon was used. In the house, a complete ozone diffusion into indoor air took place during ventilation within 30 min. After closing the windows, the ozone concentrations decreased to the basic level before ventilation within 60-90 min.
在与不同建筑材料和住宅表面接触后，于密闭舱室内测量了室内空气中臭氧的衰减情况。测试材料包括：乙烯基壁纸、木屑纸、胶合板、乳胶漆、化纤地毯和灰泥。1996年夏天，研究了通风期间室外空气中的臭氧进入室内空气的情况，以及再次关闭窗户后室内空气中臭氧的衰减情况。测量在柏林郊区的一所住宅内进行。得到了以下结果：舱室测量结果表明，与舱室内放置的大多数材料接触后，臭氧会衰减。壁纸、胶合板、化纤地毯和灰泥的衰减率更高。正如文献中所描述的，臭氧能够与材料内部的烯烃发生反应，并能够形成甲醛和其他成分。在我们的研究中也证实了甲醛的这种形成。因此，在大多数情况下，甲醛浓度低于德国0.1 ppm的指导值。当使用涂有活性炭的特殊壁纸时，可以防止甲醛的形成。在住宅中，通风期间30分钟内臭氧完全扩散到室内空气中。关闭窗户后，臭氧浓度在60 - 90分钟内降至通风前的基本水平。
