北京地区大气中非甲烷碳氢化合物（NMHC）的人为源排放特征研究

STUDY ON EMISSION CHARACTERISTICS OF NONMETHANE HYDROCARBONS FROM ANTHROPOGENIC SOURCES IN THE ATMOSPHERE OF BEIJING

以能源为线索，运用气相色谱－质谱－计算机联用手段，对北京地区大气中各人为源排放的ＮＭＨＣ进行了分类定量测定。在此基础上分析了石油化工、交通、燃煤和居民液化石油气ＮＭＨＣ的排放特征及对北京地区大气ＮＭＨＣ的贡献。结果表明，交通运输和石油化工是对大气中ＮＭＨＣ贡献最大的人为源，其次是燃煤工业。对大气中ＮＭＨＣ的特征物种也进行了尝试性的研究。

Taking energy as a clue,this paper quantitatively analysed the atmospheric non-methane hydracarbons(NMHC) from anthropogenic sources in Beijing by the method of Gas Chromatography Mass Spectrometer-Computer combination,and discussed the NMHC emission characteristics of such sources as petrochemical industry,traffic,coal burning and inhabitant natural gas and their contributions to the atmospheric NMHC in Beijing respectively.The results show that the traffic and petrochemical industry are predominant manmade NMHC sources,and coal burning is the next.This paper also tried to obtain thecharacteristic of NMHC specixs from each source.