The potential risk from ground gases is assessed at desk stage, where necessary, the ground investigation will include the installation of monitoring wells in boreholes.
In respect of vapours a Photo Ionisation Detector (PID) is employed to gain a semi-qualitative reading either direct from soil samples or from monitoring wells. The assessment of risk from vapours is also driven by compound specific laboratory analysis either of soils or gas samples obtained.
Visit the BRD Environmental Ltd website for more information on Ground Gases and Vapours