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Data For Paper "Microbial Generation Of Elemental Mercury From Dissolved Methylmercury In Seawater", Cheng-Shiuan Lee, Nicholas S. Fisher
Data For Paper "Microbial Generation Of Elemental Mercury From Dissolved Methylmercury In Seawater", Cheng-Shiuan Lee, Nicholas S. Fisher
SoMAS Research Data
Elemental mercury (Hg0) formation from other mercury species in seawater results from photoreduction and microbial activity, leading to possible evasion from seawater to overlying air. Microbial conversion of monomethylmercury (MeHg) to Hg0 in seawater remains unquantified. A rapid radioassay method was developed using gamma-emitting 203Hg as a tracer to evaluate Hg0 production from Hg(II) and MeHg in the low pM range. Bacterioplankton assemblages in Atlantic surface seawater and Long Island Sound water were found to rapidly produce Hg0, with production rate constants being directly related to bacterial biomass and independent of dissolved Hg(II) and MeHg …