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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The 96 h LL50 was > 100 mg/L. The LL50 value was greater than the highest loading rate for all category members tested. There was no difference

in toxicity between low and high molecular weight substances observed for this endpoint.

Key value for chemical safety assessment

Additional information

Three reliable studies are available for this endpoint (Inveresk 2001a, Inveresk 2001b, Harlan Laboratories, 2014a), conducted using category members Resin acids and rosin acids, hydrogenated, Me esters, Resin acids and rosin acids, esters with pentaerythritol and Resin acids and rosin acids, esters with ethylene glycol. All studies are GLP-compliant and followed OECD guideline 203, although the method was modified to use water accommodated fractions (WAF) due to the nature of the test substances. Analytical verification of the exposure concentrations was not carried out in either of the Inveresk studies, but was carried out in the study conducted at Harlan Laboratories with Resin acids and rosin acids, esters with ethylene glycol. However, in all studies results were expressed as nominal loading rates.  

In all studies the LL50 was determined to be greater than the highest loading rate tested (1000 mg/L for the Inveresk studies and 100 mg/L for the Harlan Laboratories study). Therefore, an LL50 result of >100 mg/L is considered to cover all category members.