【摘要】 目的了解新装修居室内空气苯系物(苯、甲苯、二甲苯)的污染情况及其变化规律,为装修后选择入住时间提供依据。方法选择新装修67户住户,交付使用后,连续半年监测室内空气中的苯系物含量。结果居室内空气中苯浓度呈迅速降低的趋势,甲苯和二甲苯浓度变化呈现出相似的规律,在交付使用后2周监测出现一个峰值后,随时间的推移浓度逐渐降低。结论经过7次连续半年的监测后,苯系物浓度基本可以降至室内空气质量标准以下。更多还原

【Abstract】 Objective To study the indoor air contamination by the benzene series (benzene, methylbenzene and dimethylbenzene) and its dynamic change in newly decorated apartments,and provide data for the best time to move in after decoration. Methods Sixty seven newly decorated apartments were selected. After handing over, the concentration of benzene series were determined for half a year. Results The concentration of benzene in indoor air decreased rapidly. The dynamic change of methylbenzene was the same as dimethylbenzene. The concentration reached the peak two weeks after handing over,and then decreased gradually with time. Conclusion After 7 times of monitor in half a year,the concentration of most of the benzene series could reach the indoor air quality standard.更多还原