广州市某商场装修前后有机物污染状况调查

发布时间：2018-07-22 11:47

【摘要】：目的了解商场装修前后室内空气中有机物的污染状况及其变化趋势,探讨室内空气质量的影响因素,为制定相应的防治措施提供依据。方法分别检测某商场装修前(土建验收时)、室内装修刚完成时(货架已摆好,开业前1个月)和装修后6个月(商场开业正常运转5个月时)室内空气的甲醛、苯、甲苯、二甲苯和总挥发性有机物(TVOC)的浓度,比较不同时期商场室内空气有机物浓度水平。结果装修前甲醛指标符合国家卫生标准。甲醛、苯、甲苯、二甲苯和TVOC浓度的峰值均出现在装修刚完成时,其中甲醛、甲苯、TVOC的超标率分别为22.2%、55.6%、55.6%。装修前甲醛平均浓度最低,为0.039 mg/m3,装修刚完成时平均浓度最高,为0.083 mg/m3,装修后6个月平均浓度逐渐降低,为0.054 mg/m3,差异有统计学意义,P0.001。装修刚完成时甲苯和TVOC的浓度明显高于装修后6个月(P0.05),苯、二甲苯在这两阶段浓度尚未发现有统计学差异(P0.05)。结论室内装修是造成室内空气有机物污染的主要原因,随着时间的推移,有机污染物浓度逐渐下降。
[Abstract]:Objective to investigate the pollution status and changing trend of organic matter in indoor air before and after decoration in shopping malls, to explore the influencing factors of indoor air quality, and to provide the basis for making corresponding prevention and cure measures. Methods the formaldehyde, benzene and toluene in indoor air were detected before decoration (civil acceptance), when indoor decoration was completed (shelf was set up, 1 month before opening) and 6 months after decoration (5 months of normal operation of shopping mall). The concentrations of xylene and total volatile organic compounds (TVOC) in indoor air of shopping malls were compared in different periods. Results the formaldehyde index before decoration was in line with the national hygienic standard. The peak concentrations of formaldehyde, benzene, toluene, xylene and TVOC all appeared at the beginning of decoration, in which the excess rates of formaldehyde and toluene were 22.2and 55.65.6and 55.6respectively. The average concentration of formaldehyde was the lowest (0.039 mg / m ~ 3) before decoration, and the highest concentration was 0.083 mg / m ~ (3) at the beginning of decoration. The average concentration of formaldehyde gradually decreased to 0.054 mg / m ~ (3) at 6 months after decoration, and the difference was statistically significant (P 0.001). The concentration of toluene and TVOC was significantly higher than that of six months after decoration (P0.05). The concentrations of benzene and xylene in these two stages were not found significant difference (P0.05). Conclusion Indoor decoration is the main cause of indoor air organic pollution, and the concentration of organic pollutants decreases gradually with the passage of time.
【作者单位】：广东省广州市疾病预防控制中心;
【分类号】：X831

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