Title: Using pre-screening methods for an effective and reliable site characterization at megasites 
Resource Type: document --> technical publication --> journal article 
Country: EU Projects 
Language(s): English
 
Year: 2015 
Author 1/Producer: Algreen, Mette 
Other Authors/Producers: Kalisz, Mariusz; Stalder, Marcel; Martac, Eugeniu; Krupanek, Janusz; Trapp, Stefan; Bartke, Stephan  
Author / Producer Type: University research group / research institute 
Journal: Environmental Science and Pollution Research 
Journal Web Link: http://link.springer.com/journal/11356  
Start Page: 1 
End Page: 14 
Publisher: Springer 
Publisher City: Berlin Heidelberg 
Publisher Country: Germany 
Publisher web link (root): http://link.springer.com/
Article Weblink (=direct link): http://link.springer.com/article/10.1007%2Fs11356-015-4649-6  
EUGRIS Keyword(s): Contaminated land-->Contaminants-->BTEX
Contaminated land-->Contaminants-->MTBE
Contaminated land-->Contaminants-->PAH
Contaminated land-->Contaminated land overview
Contaminated land-->Mega-sites
Contaminated land-->Site investigation-->Information sources
Contaminated land-->Site investigation-->Initial studies
Contaminated land-->Site investigation-->Sampling and analysis
Contaminated land-->Site investigation-->Sampling strategy
Contaminated land-->Site investigation-->Site description
Contaminated land-->Site investigation-->Site investigation overview
 
Short description: This paper illustrates the usefulness of pre-screening methods for an effective characterization of polluted sites. The authors applied a sequence of site characterization methods to a former Soviet military airbase. Methods included (i) phytoscreening; (ii) soil gas measurements; (iii) direct-push with MIP and LIF sensors; (iv) direct-push sampling and (v) sampling from monitoring wells. The large-scale application of non- or low-invasive pre-screening can be of help in directing and focusing the subsequent, more expensive investigation methods. Overall, the authors see several benefits of a stepwise screening and site characterization scheme. 
Long description: Researchers from the Danish Technical University have published together with colleagues from IETU, Fugro Consult, Solgeo and UFZ an article on the application potential of pre-screening methods for an effective and reliable site characterization at megasites. Their open access paper in the Springer journal Environmental Science and Pollution Research presents the results of the application and tests of different site charaterization techniques conducted in the TIMBRE project. This paper illustrates the usefulness of pre-screening methods for an effective characterization of polluted sites. The authors applied a sequence of site characterization methods to a former Soviet military airbase with likely fuel and benzene, toluene, ethylbenzene, and xylene (BTEX) contamination in shallow groundwater and subsoil. The methods were (i) phytoscreening with tree cores; (ii) soil gas measurements for CH4, O2, and photoionization detector (PID); (iii) direct-push with membrane interface probe (MIP) and laser-induced fluorescence (LIF) sensors; (iv) direct-push sampling; and (v) sampling from soil and from groundwater monitoring wells. Phytoscreening and soil gas measurements are rapid and inexpensive pre-screening methods. Both indicated subsurface pollution and hot spots successfully. The direct-push sensors yielded 3D information about the extension and the volume of the subsurface plume. This study also expanded the applicability of tree coring to BTEX compounds and tested the use of high-resolution direct-push sensors for light hydrocarbons. Comparison of screening results to results from conventional soil and groundwater sampling yielded in most cases high rank correlation and confirmed the findings. The large-scale application of non- or low-invasive pre-screening can be of help in directing and focusing the subsequent, more expensive investigation methods. The rapid pre-screening methods also yielded useful information about potential remediation methods. Overall, the authors see several benefits of a stepwise screening and site characterization scheme, which they propose in conclusion. 
Link to Project(s): timbre timbre – An Integrated Framework of Methods, Technologies, Tools and Policies for Improvement of Brownfield Regeneration in Europe
 
Link to Funding: EC FP7: Seventh Framework Programme for Research and Technological Development.
 
Submitted By: Stephan Bartke WhoDoesWhat?      Last update: 25/05/2015

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