Mathematics – Logic
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3413804j&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 13, CiteID L13804
Mathematics
Logic
1
Atmospheric Processes: Ocean/Atmosphere Interactions (0312, 4504), Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504), Oceanography: Biological And Chemical: Marine Organic Chemistry (0470, 1050)
Scientific paper
Destruction of volatile iodocarbons in the oceans can potentially play an important role in determining the predominant chemical forms of iodine emitted to the atmosphere. Here we report chlorination and hydrolysis removal rates for CH3I, C2H5I, 1-C3H7I, and 2-C3H7I relevant to oceanic conditions. We have used these rates to calculate oceanic lifetimes for each iodocarbon with respect to total chemical destruction, as a function of seawater temperature. The resulting lifetimes are compared to typical iodocarbon oceanic residence times with respect to volatilization to the MBL. The rate of destruction of 2-C3H7I is much more rapid than chemical removal of the primary alkyl iodides, potentially explaining previous observations of lower 2-C3H7I concentrations in seawater compared to 1-C3H7I. Finally, in light of these results, we briefly discuss the potential impact of rising global seawater temperatures on oceanic iodocarbon concentrations.
Carpenter Lucy J.
Jones Charlotte E.
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