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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

Based on read across, the 72 hour EL50 was >1000 mg/l WAF

Key value for chemical safety assessment

Additional information

Pateman (1998) tested the toxicity of alkenes, C20 - 24 to Pseudokirchneriella subcapitata in an OECD 201 test. Due to the low solubility of the test substance test organisms were exposed to water accommodated fractions (WAF) and exposure concentrations were expressed as a loading rate. The test was conducted as a limit test with a single exposure concentration of 1000 mg/l WAF. No effects were observed at this loading rate, so the 72 hour EL50 >1000 mg/l WAF and the NOELR is 1000 mg/l WAF.