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Measurement of heavy isotope enrichment in tropospheric ozone
Author(s) -
Krankowsky D.,
Bartecki F.,
Klees G. G.,
Mauersberger K.,
Schellenbach K.,
Stehr J.
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/95gl01436
Subject(s) - ozone , tropospheric ozone , troposphere , isotope , atmospheric sciences , environmental science , atmosphere (unit) , environmental chemistry , climatology , meteorology , chemistry , geology , nuclear physics , physics
Tropospheric ozone samples collected during a twelve‐month period in urban air show an enrichment of about 9% in the heavy isotope 50 O 3 consistent with predictions from laboratory measurements. The enhancement of about 7% observed in 49 O 3 is still within the uncertainty of the expected value. These measurements confirm that the isotope effect, repeatedly found in laboratory experiments, is also produced in the atmosphere during the ozone formation process.