It was noted that the preceding presentations addressed mercury chemistry, ecological effects, bioaccumulation, regional contamination, risk assessment, bioavailability, fate and transport, and management and policy. The workshop was concluded with a synopsis by each of the speakers. Indicators are needed. We don't yet know how beyond speculation. This is a hard problem to solve.
Science is away from policy development.
We need to do more research on contaminated sites. Elemental mercury contamination is a problem. We must measure all mercury species. We need to understand ionic mercury better and to distinguish ionic mercury from elemental mercury. Understanding speciation will aid in understanding methylation.