The CL:AIRE “Professional Guidance: Comparing Soil Contamination Data with a Critical Concentration” publication (v 1.1 February 2021) emphasised the importance of developing, refining and thoroughly understanding the Conceptual Site Model (CSM) prior to considering whether statistical analysis would be applicable for a soil contaminant data set.
In response to this publication, SoBRA set up a sub-group in 2022 with the intention of providing technical guidance to support risk assessment practitioners to understand the soil contaminant element of the CSM prior to carrying out any generic or detailed quantitative risk assessment (and any associated statistical analysis). The guidance provides a series of tips on the key data sources that should be considered and the questions that should be answered by risk assessment practitioners, to ensure that the soil contaminant distribution is correctly interpreted, not only in the context of its chemical properties and the environmental setting, but also how the distribution and CSM may change over time through human and environmental influences.
In June 2018, the Society of Brownfield Risk Assessment (SoBRA), the Geological Society Contaminated Land Group and RemSoc delivered a conference targeted towards early careers learning. Its aims were:
To support technical excellence in the assessment, estimation & evaluation of risks and associated uncertainties from land affected by contaminants;
To encourage “good practice” in the practical application of risk assessment to support decisions regarding the appropriate management of land contamination; and
To facilitate and widen access to the dissemination of knowledge regarding land contamination risk assessment.
A commitment of this workshop has been the creation of a series of short tabular reports for each of the different discipline areas. We have produced three practical tips documents which include human health risk assessment, controlled waters risk assessment and vapour intrusion (include link).