The 18 O/ 16 O and 17 O/ 16 O Ratios in Atmospheric Nitrous Oxide: A Mass-Independent Anomaly
- 5 December 1997
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 278 (5344), 1774-1776
- https://doi.org/10.1126/science.278.5344.1774
Abstract
Measurements of the oxygen isotope ratios ( 18 O/ 16 O and 17 O/ 16 O) in atmospheric nitrous oxide (N 2 O) from La Jolla, Pasadena, and the White Mountain Research Station (elevation, 3801 meters) in California and the White Sands Missile Range in New Mexico show that N 2 O has a mass-independent composition. These data suggest the presence of a previously undefined atmospheric process. The La Jolla samples can be explained by a mixing between an atmospherically derived source of mass-independent N 2 O and biologically derived mass-dependent N 2 O. Possible origins of the mass-independent anomaly in N 2 O are discussed.Keywords
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