Indoor formaldehyde(HCHO) pollution is harmful to human health. The purpose of this study was to investigate the indoor HCHO situation in residential apartments in Beijing and observe the character of the concentrations. According to Indoor air quality standard (GB/T 18883-2002), HCHO concentrations in decorated apartments were investigated during 2005-2007. All data were to be statistical with SPSS 16.0 for Windows software. The arithmetical mean (Mean) was 0.15mg/m3 and geometric mean (GM) was 0.11mg/m3 in our study. It seemed that there were seasonal variations during the investigation, and the highest value was always found in the third quarter of a year and the correlation between HCHO and temperature was more significant than other physical factors. It should be taken into account when a region level investigation was conducted.
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机译：室内甲醛（HCHO）污染对人体健康有害。这项研究的目的是调查北京居民公寓的室内HCHO情况，并观察其浓度特征。根据室内空气质量标准（GB / T 18883-2002），在2005-2007年期间对装饰公寓中的HCHO浓度进行了调查。所有数据均应使用Windows软件SPSS 16.0进行统计。在我们的研究中，算术平均值（Mean）为0.15mg / m3，几何平均值（GM）为0.11mg / m3。调查期间似乎存在季节变化，并且最高值总是在一年的第三季度发现，并且HCHO与温度之间的相关性比其他物理因素更为显着。进行区域级调查时应考虑到这一点。
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