FIG. 5.

(A) CH₃Hg production in sediment slurries amended with lactate and acetate. (B) CH₃Hg concentrations in control sediment slurries. Inorganic Hg (950 ng g⁻¹) was added to slurries at zero time. The data points each represent triplicate samples which received the same sediment treatment. The slurries represented above were the same slurries as those used in the experiments whose results are shown in Fig. 4.