新装修居室空气中总挥发性有机物随时间的变化规律

发布时间：2018-06-12 00:38

本文选题：空气污染 + 室内　；参考：《环境与健康杂志》2007年10期

【摘要】：目的研究新装修居室空气中总挥发性有机物(TVOC)的污染状况及随时间变化的规律。方法于2005年3—9月,选择贵阳市2个城区2个住宅小区57户新装修居室(完工时间均不超过20d,均值为12d)为调查对象,对居室空气中总挥发性有机物进行6个月的监测。结果装修交付使用20d内,第1次监测新装修居室的TVOC浓度范围为0.532～23.560mg/m3,中位数为2.573mg/m3。装修后147d各居室TVOC浓度均低于标准值(0.6mg/m3)。根据完工后第1次测得的TVOC结果,将室内空气中TVOC分成3个污染水平(0.5～2.0mg/m3为低浓度组,2.0～5.0mg/m3为中浓度组,5.0mg/m3为高浓度组)。第1次监测结果显示,高浓度组TVOC浓度范围为5.520～23.560mg/m3,中位数为10.150mg/m3;中浓度组TVOC浓度范围为2.004～4.993mg/m3,中位数为2.320mg/m3;低浓度组TVOC浓度范围为0.532～1.905mg/m3,中位数为1.074mg/m3。以上各组TVOC浓度逐渐降低,达到标准值(0.6mg/m3)的时间依次为147、147、118d。结论新装修居室空气中TVOC污染严重,装修完工147d时居室空气中总挥发性有机物均能降低到标准值(0.6mg/m3)以下。
[Abstract]:Objective to study the pollution of TVOC in newly decorated indoor air and its variation with time. Methods from March to September 2005, 57 newly decorated rooms in 2 residential areas in two urban areas of Guiyang city were selected as the survey objects. The total volatile organic compounds in the indoor air were monitored for 6 months, with the completion time less than 20 days and the average time being 12 days. Results within 20 days, the concentration of TVOC in newly decorated rooms was measured in the range of 0.532n 23.560 mg / m3, and the median was 2.573 mg / m3.The results showed that the concentration of TVOC in the newly decorated rooms was 2.573 mg / m ~ (-3). The concentration of TVOC in each room was lower than the standard value of 0.6 mg / m ~ (3) on the 147d after decoration. According to the results of TVOC measured for the first time after completion, the TVOC in indoor air was divided into three groups: low concentration group (2.0 mg / m 3), medium concentration group (5.0 mg / m 3) and high concentration group (5.0 mg / m 3). The results of the first monitoring showed that the concentration range of TVOC in the high concentration group was 5.520 ~ 23.560 mg / m ~ (3), the median was 10.150 mg / m ~ (3), in the middle concentration group was 2.004 ~ 4.993 mg / m ~ (3), the median was 2.320 mg / m ~ (3), and the concentration range of TVOC in the low concentration group was 0.5321,905 mg / m ~ (3), the median was 1.074 mg / m ~ (3). The TVOC concentration decreased gradually and reached the standard value of 0.6 mg / m ~ (3). The time of TVOC concentration was 147147118 days. Conclusion TVOC pollution in the air of newly decorated rooms is serious, and the total volatile organic compounds in the indoor air can be reduced below the standard value of 0.6 mg / m ~ (3) when the decoration is finished for 147 days.
【作者单位】：贵州省疾病预防控制中心卫生监测检验所贵州省疾病预防控制中心卫生监测检验所贵州省疾病预防控制中心卫生监测检验所贵州省疾病预防控制中心卫生监测检验所贵州省疾病预防控制中心卫生监测检验所贵州省疾病预防控制中心卫生监测检验所
【基金】：国家“十五”医学科技攻关项目(2001BA704B01)
【分类号】：X51

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