Tracer test for determining mass transport in the unsaturated zone of a mercury contaminated brownfield

Location
 Munich, Germany
Period of execution
 2012
Project description

There was a large-scale quicksilver pollution on a former industrial site. The center of contamination was already sealed.

To determine the transport behaviour of dissolved Hg in a complex geological stratum composition, several markers were distributed at 2 different locations.

Altogether, 17 measuring points were analysed in the strata and main aquifer.
Services provided by BfU
  • Inserting markers (uranine, eosin)
  • Implementation of 2 fluorometers to constantly measure concentrations of both substances
  • Extraction of groundwater samples; Organising laboratory work
  • Hydraulic monitoring
  • Recording climate data