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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The substance Paraffins (petroleum), normal C>10 is expected to be with very limited toxicity as the EL50 (72h) was not reached (noted to be higher than 10000 mg/L) in the case of the tested substance Hydrocarbons C11-C14, n-alkanes, <2% aromatics.

Key value for chemical safety assessment

Additional information

One study report is available for this endpoint, dealing with the toxicity of the substance Hydrocarbons, C11 -C14, n-alkanes, <2% aromatics, on algae growth rate. This study used the marine species Skeletonema costatum.

The results showed that the exposure of Skeletonema costatum to concentrations up to 10,000 mg/l for 72 h does not inhibit algal growth (based on growth rate measurements). Therefore, the substance Paraffins (petroleum), normal C>10, is not expected to inhibit algal growth.