Emissions from coastal salt marshes

Rhew RC, Miller BR, Weiss RF (2000) Natural Methyl Bromide and Methyl Chloride Emissions from Coastal Salt Marshes. Nature 403 292... 

Rhew R. C., MiUer B. R., and Weiss R. E. (2000) Natural methyl bromide and methyl chloride emissions from coastal salt marshes. Nature 403, 292—295. 

In model experiments with catechol, Fe(III), and chloride, and in soil emission studies, it is found that chloroethyne (chloroacetylene) (58) is produced (382). The natural formation of 58 parallels that of vinyl chloride, which is also found in these experiments. The in vitro and in vivo mechanisms are unknown, but the authors propose the path shown in Scheme 3.1 (382). Both chloroethyne and vinyl chloride are emitted from three soil types (coastal salt marsh, peatland, and a deciduous forest). 

Seasonal field sulfur emission measurements (DeLaune et al., 2002b) were determined in a Spar-tina alterniflora salt marsh (10-12 ppt salinity), a Spartina patens brackish marsh (5-8 ppt), and a Sagittaria lancifolia freshwater marsh (0 ppt salinity), along a salinity gradient extending inland from the coast in the Mississippi River deltaic plain region of the coastal Lonisiana. Results... 

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