Withdrawal of SSV for Mercury
Tuesday, 27 November 2018 12:42

Users of ATRISKSOIL may have recently seen an announcement that the Soil Guideline Value (SGV) and associated documentation for Mercury has been withdrawn.


The withdrawal of this documentation was decided by PHE and DEFRA following their review of the 'Scientific Opinion on the risk for public health related to the presence of mercury and methylmercury in food' published by European Food Safety Authority (EFSA) in 2012.

The EFSA report can be  accessed at the following location:



The toxicological studies reviewed by EFSA indicate that a lower Tolerable Daily Intake (TDI) would apply than was calculated in derivation of the former SGVs and therefore the current toxicological determination as set out in the former TOX report may not be adequately health protective.

Atkins are currently reviewing the EFSA determination, in light of the provenance now given to this research over former UK reviews.

Pending completion of this review the associated Atkins SSVs for the following substances should not be used:

  • Elemental Mercury;
  • Inorganic Mercury; and
  • Methyl Mercury.


We anticipate releasing an update to this value as soon as possible and when available this will be communicated to our subscribers via the news section of the website and a short email bulletin.

Last Updated on Tuesday, 27 November 2018 13:17