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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The 96 hour LL50 is 14.1mg/l WAF.

Key value for chemical safety assessment

Additional information

A single proprietary study on one stream from this category (68476 -55 -1) was available (Huntingdon Life Sciences, 2004). Oncorhynchus mykiss were tested following guideline OECD 203. The fish were exposed to the test substance at five concentrations in a daily renewal test system with no headspace to maintain the exposure concentrations. The 96 hour LL50 was reported as 14.1 mg/l WAF. This data has been read across to all category members.

To support this study, a QSAR was used to calculate the expected toxicity of eleven representative components of the streams in the category. The calculated acute effect concentrations for fish were 4.9 -30.4 mg/l. These values have been used in the PBT assessment of this category.