Natural and anthropogenic trace gases in the lower troposphere of the Arctic

Abstract

Concentrations of CCl3F (F-11), CCl2F2 (F-12), CHClF2 (F-22), C2Cl3F3 (F-113), CH3CCl3, CCl4, C2HCl3 (TCE), CH3I, CHCl3, CO, CH3Cl, CH4, and N2O were measured in and above the boundary layer (0-4 km) of the arctic troposphere near Pt. Barrow (70°N) during May 1982. The vertical structure of the concentrations is reported graphically and is analyzed statistically to reveal consistent patterns. The results are compared with analogous observations made during spring in the southern hemisphere. © 1983.