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A test was performed on the substance under registration according to OECD 2017 with Eisenia foetida and LC50 > 3000 mg/Kg dry weight. The original report is not available.

A second test was performed on the analogous substance 3a-MSA according to OECD 2017 and LC50 > 3000 mg/Kg dry weight.

Justification for Read Across is given in Section 13 of IUCLID. Both substances are tetrasulphonated sodium salts. The substance's constituent is less polar, less reactive and makes the molecule slightly less soluble compared to the similar substance derivative.The latter can therefore considered as a representative conservative analogous for the soil toxicity because of the higher bioavailability and higher reactivity with organic substrates.

No concern for soil toxicity is then arisen by the presented acute studies on the substance under registration.

According to the REACH Regulation, Annex IX, Column 2 (specific rules for adaptation from Column 1), further soil toxicity testing is not proposed by the registrant because the Chemical Safety Assessment, according to Annex I, does not indicate the need to investigate further the effects on soil organisms.

In order to limit the hazardous for soil compartment, the risk assessment for the substances belonging to the category has been performed using the highest experimental Koc value. In this way, the Predicted Environmental Concentrations in soil are maximized.