室内空气中TVOC 8种组分浓度的分布特征探讨  

An Approach on Distribution Characteristics of Eight Constituents in Total Volatile Organic Compounds in Indoor Air

作　　者：马微[1] 王林[1] 沈亦钦[1] 戴军升[1] 

机构地区：[1]上海市环境监测中心

出　　处：《上海环境科学》2007年第3期129-130,133,共3页Shanghai Environmental Sciences

摘　　要：室内空气中污染物的种类很多，总挥发性有机物（TVOC）是重要的一项。从10间住宅室内提取实验样品，采用气相色谱法分析了室内空气中TVOC的8种组分浓度含量及分布特征。实验结果表明：甲苯、乙苯和对间二甲苯已成为TVOC中的主要物质，也是造成室内空气污染的主要原因之一。甲苯浓度占TVOC的5．41％～360％，乙苯浓度占TVOC的4．61％～22．2％，对间二甲苯的浓度占TVOC的408％～29．3％，三者之和约占到TVOC含量的40％～50％。A survey of indoor air has shown that there were a wide variety of pollutants, in which total volatile organic compounds （TVOCs） were major ones. Taking air samples from ten residential rooms, contents of eight constituents of the TVOCs in the indoor air were analysed by means of gas chromatography and their distribution characteristics were studied. It has been found that toluene, ethylbenzene and p, m-xylene were major constituents to cause the indoor air pollution. Of the TVOCs, it showed that toluene content accounted for 5.41% - 36.0%, ethylbenzene 4.61% - 22.2% and p, m-xylene 4.08% - 29.3%. Sum of those three constituents amounted to about 40% - 50% of the TVOCs.

关 键 词：室内空气污染 总挥发性有机物 组分浓度 分布特征 

分 类 号：X51[环境科学与工程—环境工程] TQ577.41[化学工程—精细化工]