Sufficiency of aquatic hazard data for environmental risk assessment in sediment and soil

2.3 Data gathering As explained in the introduction of the present report, a main objective of the work was to confirm the extent to which the existing environmental hazard assessment system mainly focused on the hazards of substances towards the aquatic compartment is sufficient to protect the other compartments (i.e. [...] As such, the data in Table 7 only cover the data present in the registration dossiers and do not include any of the additional QSAR data that were generated for the purpose of this specific study. [...] As such, two parts included in the formulas in the ECHA guidance documents are missing, namely the fraction of water in soil as well as the part describing the repartitioning of the substance into the air compartment. [...] The substances included in the database are representative of the broad range of chemicals on the market The following aspects in relation to the substances and data available on the ECHA CHEM database need to be recognised: ECETOC TR No. [...] The simplification of the equilibrium partitioning formula has no incidence on the results As explained in Section 2.6.1, the applied equilibrium partitioning formula deviates from the one presented in the ECHA guidance documents in the sense that some equation parts are missing, namely the fraction of water in soil or sediment as well as the part describing the repartitioning of the substance int.