Pollution and Source of Atmospheric Volatile Organic Compounds in Urban-rural Juncture Belt Area in Beijing
北京地区城乡结合部大气挥发性有机物污染及来源分析

A method for determining volatile organic compounds(VOCs) by cryogenic dynamic adsorption in solid adsorbent tubes,subsequent thermal desorption with cryofocusing in a cold trap and analysis by gas chromatography and mass spectrometry was adapted.Volatile organic content levels,spatial and temporal distribution and sources were studied.Results indicated that 265 species were detected in atmospheric environment of this area,including alkanes,alkenes,aromatics,halohydrocarbons and oxygenated compounds.The ave...