Differences in the concentrations of atmospheric trace gases in and above the tropical boundary layer |
| |
| Authors: | R A Rasmussen M A K Khalil |
| |
| Institution: | (1) Department of Environmental Science, Oregon Graduate Center, 19600 N. W. Walker Rd., 97006 Beaverton, OR, USA |
| |
| Abstract: | Weekly air samples were collected at Cape Kumakahi (0 km) and at nearby Mauna Loa Observatory (3.4 km) which is above the boundary layer. EC/GC and GC/FID techniques were used to measure CH3I, CHCl3, CO and CH4, which are largely natural in origin, and C2Cl4, CCl4, CH3, CCl3, CCl3F (F-11), CCl2F2 (F-12), CHClF2 (F-22) and C2F3Cl3 (F-113), which are due to anthropogenic activities. It was found that all these gases are significantly (  0.05) more abundant in the boundary layer than above it. |
| |
| Keywords: | Atmospheric trace gases Atmospheric chemistry Chemical composition of atmospheric boundary layer |
| 本文献已被 SpringerLink 等数据库收录！ |
|
