The role of bacteria in the mobilization of arsenic from mine impacted sediments.
The two main objectives (outlined below) for this project address 2 of the goals for the research team. Specifically, information regarding source apportionment, i.e. natural versus anthropogenic sources of release, and transformation of metals during transport, will be generated.
- Microbially mediated mechanisms that favour the release and/or sequestration of arsenic in aquatic environments will be defined in a freshwater system that has received gold mine tailings for more than 50 years.
- The potential for water column enrichment of arsenic from underlying sediments will be quantified in a series of laboratory and field experiments.