北京机场奥运期间C_2H_4变化特性  

Characteristics of Ambient C_2H_4 in Capital Airport Duing Beijing Olympic Games

作　　者：魏秀丽[1] 高闽光[1] 陆亦怀[1] 刘文清[1] 刘建国[1] 徐亮[1] 张天舒[1] 刘志明[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室,安徽合肥230031

出　　处：《大气与环境光学学报》2009年第5期382-386,共5页Journal of Atmospheric and Environmental Optics

基　　金：国家863基金(2005AA1010)资助项目

摘　　要：大气中的挥发性有机物是空气中影响人体健康的重要污染物,它们在光化学烟雾、酸雨、全球变暖等环境问题中也起到重要作用。使用傅里叶变换红外光谱测量了奥运期间首都机场C_2H_4浓度变化,通过最小二乘法拟合得到C_2H_4在不同时间段内的浓度值。C_2H_4/C_2H_6值的变化趋势是晚上较高,白天较低,受汽车尾气影响。C_2H_4浓度变化则是受机动车和飞机尾气的共同影响。奥运会期间C_2H_4浓度变化受飞机影响很大,浓度变化和飞机架次相关性很好。In urban areas, volatile organic compounds are important ambient pollutants because of their detrimental effects on human health and their role in the chemistry of atmosphere as precursors of ozone and other oxidants. The concentration of C2H4 was analyzed by Fourier transform infrared spectroscopy. The variation of the long-time trends of the C2H4 concentrations in Beijing may be ascribed to the emission changes from the plane and the motor vehicle. During Beijing Olympic Games, the C2H4 concentrations in Beijing Capital Airport may be ascribed to the emission changes of planes, and the C2H4 concentrations have good relativity with the quantity of planes .

关 键 词：挥发性有机物 傅里叶变换红外光谱 C2H4 

分 类 号：X511[环境科学与工程—环境工程]