城市装修住宅室内空气甲醛污染调查分析

发布时间：2018-12-11 08:39

【摘要】：通过对长沙市83户装修住宅的344个受检对象室内空气检测分析,结果发现:装修后2年内的居室内甲醛检出率100%,甲醛超标率53.3%,甲醛平均含量0.11±0.07 mg/m3,甲醛浓度范围为0.01-0.45 mg/m3,甲醛污染指数分布区间0.1-4.5,最大超标倍数达3.5倍;不同功能区装修居室的甲醛平均含量高低顺序为:小孩房主卧(次卧、书房)客厅;装修居室室内甲醛浓度随装修后时间延长呈总体下降态势,装修后7个月以上的住宅室内甲醛平均含量降低0.04 mg/m3;装修后短期内室内甲醛含量超标率比装修后长期居室高约25%,主卧的甲醛超标率更是高达82.35%;经过相同装修时间后的住宅,放置家具比未放入家具的居室甲醛平均含量提高0.04 mg/m3。这表明,城市装修住宅室内空气污染严重,甲醛污染与住宅的功能分区、装修后放置时间有关,家具对室内空气环境的影响也不容忽视。
[Abstract]:The indoor air test of 344 indoor air samples of 83 renovated houses in Changsha City was carried out. The results showed that the detection rate of indoor formaldehyde was 100, the rate of formaldehyde exceeding the standard was 53.3and the average content of formaldehyde was 0.11 卤0.07 mg/m3,. The range of formaldehyde concentration is 0.01-0.45 mg/m3, the range of formaldehyde pollution index is 0.1-4.5, and the maximum ratio of exceeding the standard is 3.5 times. The average content of formaldehyde in different functional areas was in the order of children's main bedroom (secondary bedroom, study) living room; The indoor formaldehyde concentration in the decoration room decreased with the prolongation of the decoration time, and the average indoor formaldehyde content of the house more than 7 months after decoration decreased by 0.04 mg/m3;. In the short term after decoration, the indoor formaldehyde content exceeded the standard rate by about 25% than that in the long room after decoration, and the formaldehyde excess rate of the main bedroom was as high as 82.35%; After the same decoration time, the average content of formaldehyde increased by 0.04 mg/m3. compared with the room without furniture. This shows that the indoor air pollution of the urban decoration residence is serious, the formaldehyde pollution is related to the functional partition of the residence, the time after decoration, and the influence of furniture on the indoor air environment can not be ignored.
【作者单位】：中南大学冶金科学与工程学院;
【基金】：国家公益性(环保)行业科研项目(200909065) 国家自然科学基金项目(40771181) 中国博士后科学基金资助项目(20080430565);中国博士后科学基金特别资助项目(200801119)
【分类号】：X511

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