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环境化学  2015 

预浓缩-GC-MS技术研究室内空气中挥发性有毒有机物

Keywords: 预浓缩-GC-MS法,挥发性有毒有机物,污染源标志化合物

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Abstract:

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.

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