Methods 10 office rooms and 100 houses that were newly redecorated for one month were chosen for the determination of formaldehyde, TVOC, ammonia and radon.

• 方法对兰州市装修完成1个月内的10间办公室和100套居民住宅进行室内空气中甲醛、总挥发性有机物(TVOC)、氨和氡的检测。