Documenting that a contaminant has disappeared or that the concentration has become very low in groundwater samples is an important piece of information for proving that natural attenuation is working ...

The most widely recognised definition is given by the US Office of Solid Waste and Emergency Response (US EPA OSWER 1999): “The ‘natural attenuation processes’ that are at work in such a remediation ...

For four years, PhD student Phil Ham from the University of Utrecht, The Netherlands has conducted research into the transport and fate of contaminated groundwater plumes. Here he speaks to edie about ...

This report discusses in detail the necessary prerequisites, processes involved and applicability of ‘non-intervention’ as a strategy for dealing with radioactive contamination. Particular emphasis is ...

Natural Source Zone Depletion (NSZD) represents a critical natural attenuation process whereby the mass of petroleum hydrocarbons, particularly those present as light non‐aqueous phase liquids (LNAPLs ...