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Ozone in seawater and Lake Water: A reversible reservoir
Author(s) -
Harvey George R.,
SpringerYoung Margie
Publication year - 1988
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/gl015i011p01199
Subject(s) - seawater , ozone , environmental science , oceanography , troposphere , atmospheric sciences , mixing ratio , environmental chemistry , geology , chemistry , organic chemistry
Observations made at sea and examination of global ozone monitoring data from oceanic sites indicate that ozone mixing ratios over the sea surface often increase with increasing wind speed. However, the slope of the increase approaches zero at wind speeds above about 6 m/sec (13 kts). Subsequent laboratory experiments confirmed that ozone can be purged from any seawater sample whether freshly collected, stored, or from depth. Samples of Lake Michigan water are purged of ozone in less time than seawater and its capacity is less than that of seawater. The rate of evolution of ozone is increased by altering the pH, changing the ionic strength by the addition of salts or by evaporation. These results suggest that a significant portion of tropospheric boundary layer ozone mixing ratios could be maintained by a reversible equilibrium with the ocean and lake surfaces.