Screening of contaminated land

The VOC-Mole is used to screen for volatile and semi-volatile organics in contaminated land.  It easily pinpoints underground leaks or surface spills and cost effectively tracks pollution flow. 

VOC-Moles may be arranged in a grid pattern over the site of interest.  Organic pollutants migrate into the probe to be collected on sorbent tubes inside.  Subsequent analysis is by thermal desorption-GC.  A profile of pollution levels over a large site can then be built up.

Other applications

Other applications include monitoring along the length of underground fuel pipes or checking for contamination around the perimeter of landfill sites, petroleum retail outlets etc..  VOC-Moles are also suitable for longterm monitoring of remediated (“brown field”) sites.

Constructed of stainless steel, the soil probes can be left in situ semi-permanently with vapour samples collected onto sorbent tubes, quarterly, 6-monthly, or at whatever frequency is demanded by the application.

Variants of the VOC-Mole are available for monitoring contaminants in marshy or water-logged ground.

For part numbers and pricing please contact your local Markes distributor or visit our on-line shop.  

Relevant technical support publications from Markes International can be automatically downloaded from this web site (registration required). Examples include:

• Brochure - Thermal Desorption and Air Monitoring Products
• Brochure - VOC-Mole 
• TDTS 29 - VOC air monitoring technology and its application to contaminated land 
  

Other thermal desorption sampling accessories available from Markes include: 

Air sampling pumps
MTS-32 sequential tube sampler
Bio-VOC breath sampler
FLEC cell
µ-CTE Micro-Chamber / Thermal Extractor
Calibration Solution Loading Rig
TC-20 tube conditioner
Pneumatic control accessory
Digital flowmeter
Helium Gas Leak Detector
Sorbent tubes for Thermal Analysis - Evolved Gas Collection


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