@article{fdi:010072861,
  title = {{M}ercury in the {B}lack {S}ea : new insights from measurements and numerical modeling},
  author = {{R}osati, {G}. and {H}eimburger, {L}. {E}. and {C}anu, {D}. {M}. and {L}agane, {C}hristelle and {L}affont, {L}. and {R}ijkenberg, {M}. {J}. {A}. and {G}erringa, {L}. {J}. {A}. and {S}olidoro, {C}. and {G}encarelli, {C}. {N}. and {H}edgecock, {I}. {M}. and {D}e {B}aar, {H}. {J}. {W}. and {S}onke, {J}. {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}edox conditions and organic matter control marine methylmercury ({M}e{H}g) production. {T}he {B}lack {S}ea is the world's largest and deepest anoxic basin and is thus ideal to study {H}g species along the extended redox gradient. {H}ere we present new dissolved {H}g and {M}e{H}g data from the 2013 {GEOTRACES} {MEDB}lack cruise ({GN}04_leg2) that we integrated into a numerical 1-{D} model, to track the fate and dynamics of {H}g and {M}e{H}g. {C}ontrary to a previous study, our new data show highest {M}e{H}g concentrations in the permanently anoxic waters. {O}bserved {M}e{H}g/{H}g percentage (range 9-57%) in the anoxic waters is comparable to other subsurface maxima in oxic open-ocean waters. {W}ith the modeling we tested for various {H}g methylation and demethylation scenarios along the redox gradient. {T}he results show that {H}g methylation must occur in the anoxic waters. {T}he model was then used to simulate the time evolution (1850-2050) of {H}g species in the {B}lack {S}ea. {O}ur findings quantify (1) inputs and outputs of {H}g-{T} (similar to 31 and similar to 28 kmol yr(-1)) and {M}e{H}g{T} (similar to 5 and similar to 4 kmol yr(-1)) to the basin, (2) the extent of net demethylation occurring in oxic (similar to 1 kmol yr(-1)) and suboxic water (similar to 6 kmol yr(-1)), (3) and the net {H}g methylation in the anoxic waters of the {B}lack {S}ea (similar to 11 kmol yr(-1)). {T}he model was also used to estimate the amount of anthropogenic {H}g (85-93%) in the {B}lack {S}ea.},
  keywords = {{GEOTRACES} ; mercury ; methylmercury ; anoxia ; sulfide ; methylation ; {MER} {NOIRE}},
  booktitle = {},
  journal = {{G}lobal {B}iogeochemical {C}ycles},
  volume = {32},
  numero = {4},
  pages = {529--550},
  ISSN = {0886-6236},
  year = {2018},
  DOI = {10.1002/2017gb005700},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072861},
}