%0 Journal Article
%T The carbon isotopic compositions of Non-methane Hydrocarbons in atmosphere
%A Lin Peng
%A HuiMin Zhang
%A ZhaoFang Ren
%A Ling Mu
%A RuiLiang Shi
%A LiPing Chang
%A Fan Li
%J Chinese Science Bulletin
%@ 1861-9541
%D 2009
%I 
%R 10.1007/s11434-008-0586-9
%X Carbon isotopic compositions of atmospheric Non-methane Hydrocarbons (NMHCs) in the urban areas of Taiyuan and Lanzhou in summer were reported and the sources of NMHCs are discussed. Carbon isotopic ratios (¦Ä13C) of vehicle exhaust, coal-combustion exhaust, fuel volatiles and cooking exhaust were also measured with thermal desorption-gas chromatography-isotope ratio-mass spectrometry (TD-GC-IR-MS). ¦Ä13C values of NMHCs in the urban areas of Lanzhou and Taiyuan range from  32.3% to  22.3% and from  32.8% to  18.1¡ë ¦Ä13C values of vehicle exhaust, coal-combustion exhaust, fuel volatiles and cooking exhaust are  32.6- 21.7%,  24.5%- 22.3%,  32.5%- 27.4% and  31.6%-  24.5%, respectively. The data indicate that vehicle exhaust and cooking exhaust make a significant contribution to the atmospheric NMHCs. Therefore, to reduce emissions of vehicle exhaust and cooking exhaust is critical for controlling atmospheric NMHCs pollution in summer.
%K Non-methane Hydrocarbons
%K carbon isotopic composition
%K atmosphere
%U http://link.springer.com/article/10.1007/s11434-008-0586-9