芜湖市新装修居室空气污染状况调查

Investigation of Air Pollution Condition of newly decorated residences in Wuhu City

目的 了解新装修居室空气中甲醛、苯系物、氡污染状况。方法 随机抽取市区装修时间在 30d内和 6 0～ 90d的居室各 1 5户设点检测。结果 空气中甲醛浓度超标的检测点为 4 4 .0 % ;苯、甲苯、二甲苯浓度超标的检测点分别为 1 6 .7%、1 0 .0 %、2 0 .0 % ;氡无一超标。空气中甲醛、苯系物浓度时间比较 ,居室装修后30d内组显著高于 6 0～ 90d组。结论 居室装修后空气污染状况严重。甲醛、苯系物浓度随装修时间而逐渐下降。

Objective To investigate the contaminated condition of formaldehyde, benzene series, radon in doors air of newly decorated residences. Methods 15 newly decorated residences each were selected randomly to monitor the variation of formaldehyde, benzene series, radon in doors air in 30 days and 60 days and 90 days. Results The formaldehyde concentrations in doors of 44.0% newly decorated residences were higher than standard. The number of residences with Benzene, methylbenzene, xylene overproof was 16.7%, 10.0%, 20.0% respectively. The radon concentrations in doors of newly decorated residences were all lower than standard. Compared with 60 days～90 days by monitoring the variation of formaldehyde and benzene series concentrations, the concentrations of newly decorated residences in 30 days were much higher. Conclusions Air pollution in doors of newly decorated residences was very serious. But the formaldehyde and benzene series concentrations gradually descended with time. Thus, ventilation should be enhanced and the qualified decorate material should be adopted so as to alleviate the air pollution in doors of newly decorated residence.