Heavy methanes as atmospheric tracers.
Methane-21 ((13)CD(4)) is potentially a useful nonradioactive tracer for testing atmospheric transport and diffusion models on a continental scale. In an experiment to demonstrate this long-range utility, the release of 84 grams of methane-21 was detected at distances of 1500 to about 2500 kilometers at concentrations of about 1 part in 2 x 10(16) parts (by volume) in the air by a technique in which methane was separated and the methane-21 content was measured with a mass spectrometer.
Cowan
G A
GA
Ott
D G
DG
Turkevich
A
A
Machta
L
L
Ferber
G J
GJ
Daly
N R
NR