Downloads

Soil Screening Values

 

Atkins has derived SSVs at 6% soil organic matter (SOM) for sandy loam and at 1% SOM for a sand soil type.

 

The SSVs have been derived using the CLEA v1.071 software and the DEFRA C4SL Project Methodology default land use and exposure assumptions. However, for the majority of substances, the SSVs are not equivalent to C4SLs. This is in part because they remain based on the principles of minimal toxicological risk as set out in Environment Agency guidance Science Report 2 (SR2, 2009) and have not been through an external peer review panel. Where we have published a C4SL for a 1% SOM sand soil type this has been suffixed with C4SL in brackets.

 

The  ATRISKsoil SSVs for each land use can be accessed as Adobe Acrobat PDF files using the links to the right of this page. Please read and ensure that you understand the accompanying notes for use.

 

Water Screening Values

 

Atkins has derived WSVs using the RBCA v2.5 software.  The modelling inputs were made compliant with the SR3 residential and commercial conceptual exposure models for the inhalation pathway only.

 

The ATRISKsoil WSVs can be accessed as Adobe Acrobat files using the links to the right of this page.

 

 

If you don’t have Adobe Acrobat Reader you can download it from here.