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Heavy ozone - a difficult puzzle to solve

Article Abstract:

Heavy isotopes of ozone, mainly 49-O3 and 50-O3, exist in the atmosphere in larger proportions than would be expected from the relative abundance of the three oxygen isotopes. Gregory Gellene has developed a quantitative prediction scheme based on metastable states of the ozone molecule.

Author: Krankowsky, Dieter, Mauersberger, Konrad
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1996
Oxygen, Oxygen isotopes

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Methyl chloroform and the atmosphere

Article Abstract:

The Montreal Protocol has led to an actual decrease in atmospheric abundance of methyl chloroform, a short-lived man-made chemical. Methyl chloride abundance figures have helped estimate abundances of the hydroxyl radical, an important parameter in atmospheric chemical calculations.

Author: Ravishankara, A.R., Albritton, D.L.
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1995
Research, Environmental aspects, Atmospheric chemistry, Trichloroethane (1,1,1-trichloroethane), Trichloroethane

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Photochemistry of ozone: surprises and recent lessons

Article Abstract:

The electronically excited oxygen atom O(1D), which is produced by the solar photolysis of ozone, is crucial to hydroxyl formation in the lower atmosphere. O(1D) reactes with H2O and CH4 to become a major source of the hydroxyl radical OH.

Author: Kawasaki, M., Ravishankara, A.R., Hancock, G., Matsumi, Y.
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1998
Photochemistry

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Subjects list: Analysis, Atmospheric ozone
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