目的探讨新装修后居室空气中甲醛污染情况及其影响因素。方法采用现场调查方法,对建的51家装修住户的220个不同房间,采用美国Interscan公司生产的INTERSCAN 4160数字便携式甲醛分析仪测定室内空气中甲醛含量。结果装修后初次测定甲醛平均浓度为0.18mg/m3,超过国家标准1.8倍,最高达11.7倍;部分家庭3个月后再次检测,浓度有所下降,为0.15 mg/m3,仍然超过国家标准。室内空气甲醛含量与微小气候密切相关,其浓度与气温、风速呈正相关。结论装修后居室空气中甲醛污染严重,基于健康考虑,装修房间后最好通风换气3个月后入住。 Objective To investigate the formaldehyde pollution in the air of the newly renovated rooms and its influencing factors. Methods The field survey method was used to measure the formaldehyde content in indoor air of 220 different rooms of 51 renovated dwellings using the INTERSCAN 4160 Digital Portable Formaldehyde Analyzer manufactured by Interscan Company of the United States. Results The average initial formaldehyde concentration after decoration was 0.18mg / m3, 1.8 times higher than the national standard, up to 11.7 times. Some families tested again after three months and the concentration dropped to 0.15 mg / m3, still exceeding the national standard. The content of formaldehyde in indoor air is closely related to the microclimate, and its concentration is positively correlated with air temperature and wind speed. Conclusion After renovation, the indoor air formaldehyde pollution is serious, based on health considerations, after renovating the room the best ventilation 3 months after arrival.