Table 1: List of gases for which data will be available after chromatogram inspection

5. Table 1: List of gases for which data will be available after chromatogram inspection and data quality control. Symbols: # limited data available. * Compounds that have been checked. Bold denotes compounds we will attempt to quantify.

6. Isoprene is important in the marine boundary layer as it is very reactive towards hydroxyl (OH) and atomic chlorine (Cl).  Oxidation of DMS in the marine boundary layer occurs mainly by a OH and Cl.  Thus, an increase in isoprene results in a longer lifetime for DMS.  This would allow DMS to be transported farther from its source, either horizontally or vertically into the atmosphere.  The extra flux of isoprene and other carbon containing gases returns carbon to the atmosphere.  Methyl iodide was consumed in the northern patch.  It is a major source of iodine to the boundary layer and upper troposphere/lower stratosphere where it can participate in catalytic cycles which the destroy ozone.  Ozone in the boundary layer is the source of atmospheric OH.Isoprene and methyl iodide are only two of the many gases that we will have data for and that Fe fertilization experiments are very important inunderstanding the sources and sinks of these trace gases in the marineenvironment.  Marine production is a major source of many trace gases which are climate relative