公交车场挥发性有机物暴露水平的GC-MS测定  

Determination the Exposure Levels of VOCs in the Bus Park Microenvironments by GC - MS

作　　者：何秋生[1] 王新明[1] 盛国英[1] 傅家谟 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640

出　　处：《分析测试学报》2004年第z1期187-188,191,共3页Journal of Instrumental Analysis

摘　　要：　　空气中的挥发性有机物(volatile organic compounds, VOCs)日益受到大家的关注,这不仅因为它们具有强烈的环境效应,而且在较高浓度下可直接危害人体健康[1].研究表明机动车尾气已成为广州市区VOCs的主要来源,街区VOCs的暴露水平高于北美和欧洲的一些国家[2,3].……Exposure levels of volatile organic compounds(VOCs) in the bus park in Guangzhou were determined by multi-bed adsorbent tube sampling followed by thermodesorption/gas chromatography - mass selective detector (TD - GC - MSD) technique. The results reveal the exposure levels of monocyclic aromatic hydrocarbons in the park are relatively high and the mean levels of benzene and toluene were 28.6 and 65.6μg/m3, respectively. The diurnal variation of VOCs in the park was obvious, and the exposure level of benzene in the work time was higher than EPAQS( 16μg/m3), then We should pay attention to it.

关 键 词：Volatile organic compounds(VOCs) THERMODESORPTION Monoaromatic hydrocarbons Bus park 

分 类 号：O657-55[理学—分析化学]