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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

ELR50>1000mg/l and NOAEC>1000mg/l (based on a loading rate of 1000mg/l)  Measured TOC of this water accomodated fraction was 1.15mg/l (as TOC)

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
1 000 mg/L

Additional information

In an acute GLP guideline toxicity study using a C10/C12 polyalphaolefin, daphnia magna were exposed to a water accommodated fraction (WAF) at a loading rate of 1000mg/l for 48 hours under static test conditions. The measured total organic content of this solution was1.15mg/l. No immobilisation or adverse reactions to exposure were recorded during this period and hence the 48 hour effective loading rate (ELR50) and NOEC were both greater than or equal to 1000mg/l. This conclusion is supported by QSAR modelling.