漯河市装修居室空气污染状况调查

目的了解建筑、装饰材料对室内空气质量影响的现状,给消除、控制室内空气污染提供依据.方法于2002年7月-2004年8月对漯河市分散居住的44户新装修住房采集空气样品进行氨、苯、甲苯、二甲苯、甲醛浓度的检测,并进行统计分析.结果氨均未检出,苯浓度超标率为8.7%,甲苯超标率为15.9%,二甲苯均未检出,甲醛浓度超标率为72.2%.卧室、书房、客厅空气中甲醛超标率分别为92.2%,57.1%,48.8%,三者之间差异有统计学意义(P＜0.01).随着装修后时间的延长,室内空气中苯、甲苯、甲醛的浓度和超标率不断下降.结论室内装修导致的室内空气污染,其污染物以甲醛和苯系物为主,污染物浓度依房间功能不同有统计学差异,并随装修后时间延长呈下降趋势.

An Investigation of Indoor Air Pollution in Newly Decorated Rooms in Luohe

Objective To investigate the indoor air pollution caused by construction materials and decoration materials and present scientific data for controlling indoor air pollution caused by construction and decoration materials. Methods 126 samples coUected from 44 newly decorated rooms in some districts of Luohe city. The levels of ammonia, benzene and formaldehyde were analyzed according to the national standard. Results The rates of exceed standard of benzene and formaldehyde concentration were 8.7% and 72.2% respectively. Formaldehyde concentration was 3.4 times of the national standard limit averagely. Ammonia and dimethylbenzene were not detected, Conclusion Some decoration materials can pollute the indoor air. The formaldehyde and benzene concentration tend to decrease as time goes on.