PRODUCTS & SERVICES
Contamination Risk Assessment – URBAN

 

Airborne dust contamination

Airborne contaminated dust spatial distribution and toxic element contamination load is mapped with attic dust survey. Our competences include:

  • attic dust sampling in a supervised grid-based stratified random sampling design
  • chemical measurement of the samples and the statistical analysis for risk assessment
  • contamination maps production and spatial risk evaluation.

   

Airborne contamination assessment by attic dust sampling and analysis.

  

 

 Airborne contamination assessment by attic dust. Left: stochastic modeling and mapping for Mercury (Hg). Right: Spatial modelling of airborne Hg in dust. Note the N-S pattern along the prevailing wind direction.

Urban soil contamination

Urban soil contamination spatial distribution and toxic element contamination load is mapped based on the EuroGeoSurveys URGE (Urban GEochemistry) Program. Our competences include:

  • soil sampling in a supervised grid-based stratified random sampling design
  • chemical measurement of the samples and the statistical analysis for risk assessment
  • contamination maps production and spatial risk evaluation.

 

Urban contamination assessment at sensitive receptors (parks, playgrounds) by soil sampling. Right: source characterization – sampling of closed coal mine waste dump in the urban area.

 

Urban contamination assessment, an example with multiple sources (alumina industry, coal mining, coal power plant) in Ajka, Hungary. Right: Spatial modelling and RISK ASSESSMENT and MAPPING of Hg in urban soils. Note the children’s playgrounds as sensitive receptors in the elevated Hg zone in the N-S zone along the prevailing wind direction.

Urban contamination RISK ASSESSMENT and RANKING, showing playgrounds (red dots) with multi-element contamination.


Stochastic modelling of  Arsenic (As) mobility in urban soils (adsorption by iron-oxyhydroxides in this case).

 

GEM-RG personnel have very extensive experience and documented results with international applied geochemistry projects (see GEMAS EU Soil Mapping Project, for example) and training, with special focus on toxic element contamination. Several reports, books and published papers document our scientifically-based methods and applied results.

 

See ProjectsReferencesPublicationsDownloadsGalleryTraining and Geochemistry and Modelling for details.

Contact us for further information.