Effect of pH on mercury uptake by an aquatic bacterium: implications for Hg cycling.

@article{Kelly2003EffectOP,
  title={Effect of pH on mercury uptake by an aquatic bacterium: implications for Hg cycling.},
  author={Carol Ann Kelly and John W. M. Rudd and M H Holoka},
  journal={Environmental science & technology},
  year={2003},
  volume={37 13},
  pages={2941-6}
}
We studied the effect of increasing hydrogen ion (H+) concentration on the uptake of mercury (Hg(II)) by an aquatic bacterium. Even small changes in pH (7.3-6.3) resulted in large increases in Hg(II) uptake, in defined media. The increased rate of bioaccumulation was directly proportional to the concentration of H+ and could not be explained by assuming that the source of Hg to the bacteria was diffusion of neutrally charged species such as HgCl2. Thus, pH appeared to affect a facilitated… CONTINUE READING

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