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Short-term toxicity to aquatic invertebrates

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Description of key information

Due to the low solubility of icos-1-ene experimental data is not available and has not been proposed. Read across from tetradec-1-ene and hexadec-1-ene indicate that effects on invertebrates may be observed. However, the predicted toxicity of icos-1-ene is above its limit of solubility so toxicity is not expected.

Key value for chemical safety assessment

Additional information

Experimental data is not available for icos-1 -ene. In the absence of data for icos-1 -ene, data has been read across from category members with a lower carbon number.

Drottar and Swigert (1995) and Whale and Cheesman (1995) tested the toxicity of tetradec-1 -ene and Douglas and Halls (1993) and Whale and Cheesman (1995) tested the toxicity of hexadec-1 -ene to aquatic invertebrates in OECD 202 tests. Due to the low solubility of the test substances test organisms were exposed to water accommodated fractions (WAF) and exposure concentrations were expressed as a loading rate. All the tests were conducted as limit tests with a single exposure concentration of 1000mg/l WAF except for Douglas and Halls (1993) who created a stock solution of 1000mg/l WAF which they then diluted to give different exposure concentrations.WAF should be prepared by adding the appropriate amount of test substance to the test media, rather than by dilution. Therefore, only the results from the 1000mg/l WAF are considered valid. Results from all four tests reported effect levels up to 85% after 48 hours.