Natural Organ Bromine in Marine Sediments: New Evidence of Biogeochemical BR Cycling

chemistry

Organ bromine (Borg) compounds, which are known as persistent, toxic anthropogenic pollutants, are also generated naturally in terrestrial and marine ecosystems. As a result of this research, a wide range of naturally occurring Borg compounds and several enzymatic and biotic brominating routes have been uncovered. Carbon-bromine functioning, however, is unknown in the marine environment. Seabed sediments have been found to contain organic carbon (Corg) and bromine (Br). Even yet, there hasn't been any clear chemical evidence that Br exists in sediments in a stable form other than the inorganic bromide (Brinorg), which is normally assumed to be conservative in marine environments For the Borg compounds found in sediments, an examination of particulate carbon from the seawater column has connected them to biologically generated Brorg compounds that persist as a consequence of mummification (NOM). Biogeochemical cycling of Br between organic and inorganic forms as part of the burial and degradation of NOM is evidenced by the change in Br species with sediment depth. Researchers have discovered that Br is not a conservative element in marine sediments and that the chemistry of Br and Corg in marine sediments is a mystery.

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