Soil contamination and remediation

Despite the complexity of VOCs dynamics in soil, in general, non-polar VOCs tend to be transported as vapour through soil air, with a tendency to escape into buildings at sub-soil level. By contrast, more polar VOCs tend to be transported downwards by water, resulting in contamination of groundwater.

Soil screening of VOCs by headspace measurements

Soil analysis for VOCs requires careful sample retrieval handling. Gas chromatography Is used to separate sample VOCs from sampled soil. For most VOCs, it is often possible and advantageous to analyse a sample headspace.