摘要
选取装修时间分别为7d、30d、90d的居室各50户,采集室内空气样测定总挥发性有机物(TVOC)浓度,发现超标率随装修时间的延长而下降,且90d后TVOC超标2倍以上的严重污染户已降至2%;装修3个月以上居室室内空气中TVOC组分共检测出59种,其中32种为半数以上居室所共有,经分析绝大多数为室内装修材料所释放且多为有害物质;通过实验发现周期性通风放置比封闭状态放置能够更快地降低室内TVOC浓度,是减轻TVOC污染的最佳方法。
50 rooms were chosen respectively according to the decoration time of 7d,30d and 90d, and air in these rooms was gathered to determinate total volatile organic compounds（TVOC） concentration. It was found that exceeding standards rates descended along with the decoration time, and serious polluted rooms that exceeding standards 2 times had descended to 2% after 90 days. 59 TVOC components were found in indoor air in rooms that have decorated 3months, 32 components among them were found in more than half rooms, through analysis it was found that most of these components were released ay decoration materials and most were deleterious substance. Periodic ventilating laying can make TVCC concentration descending more fast than closed laying and it was the best way to reduce TVOC pollution.
出处
《环境保护科学》
CAS
2009年第2期5-7,21,共4页
Environmental Protection Science
关键词
室内空气
挥发性有机物
超标率
通风
Air Indoor Volatile Organic Compounds Exceeding Standards Rates Ventilation
