Dissolved methane monitoring for ground gas risk assessment

Ground gas monitoring data for risk assessment should ideally be obtained from monitoring wells installed in the unsaturated zone.

Where groundwater is present in gas monitoring wells it may contain dissolved methane that can influence the measured gas concentrations in the well headspace.

The source of the dissolved methane can be from a diverse range of sources including residual gas from historic landfill, groundwater in Alluvial soils or methane released as a result of shale gas production.

This paper provides information on the influence of dissolved methane on headspace gas concentration and shows how monitoring of dissolved methane can be used to help interpret ground gas monitoring results.

Download the Dissolved methane monitoring for ground gas risk assessment paper.

 

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