摘要:
研究了广州市8种典型室内环境中62种挥发性有毒有机物(VOCs)的特征和分布,结果表明:(1)从低至高,家庭、歌舞厅、宾馆、餐厅、图书馆、办公室、大型商业城和停车库室内空气中总挥发性有毒有机物(TVOCs)平均浓度分别为:0.241,0.271,0.471,0.476,0.556,0.910,1.177和2.190mg·m-3;而室外环境背景参照点白云山平均浓度为0.213mg·m-3,略低于家庭;(2)室内空气污染物具有明显的源特征,根据其VOCS标志化合物和它们的混合比例可以初步判断其来源.
Abstract:
Utilizing the technique of preconcentrator-GC-MS cerified by US. EPA, this paper developed a wholly and rapidly measurement method of analyzing the hazard volatile organic compounds (VOCs) from indoors air with a confirmed checking program, researched the characterization and distribution of 62 VOCs from 8 kinds of typical indoors air in Guangzhou city of South China with the founding that: (1) the total VOCs (TVOCs) concentration increases gradually in the order of a-partments, dance and sing clubs, hotels, restaurant rooms, libraries, offices, great shops and garage, separately in 0.241, 0.271, 0.471, 0.476, 0.556, 0.910, 1.177 and 2.190 mg·m-3, however, the top of Baiyun mountain acted as background site in Guangzhou city is 0.213 mg·m-3 less than the apartments; (2) Indoors air pollution has obvious sources characterization, characterized compounds and their mixed ratio are the source marks.
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