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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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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 EC50 for the toxicity of Other Petroleum gases category members to aquatic algae and cyanobacteria ranged from7.71 - 16.5 mg/l

Key value for chemical safety assessment

Additional information

No experimental data were available on the toxic effects of category members on aquatic algae and cyanobacteria. Due to the difficulty associated with aquatic toxicity testing with gases, QSAR calculations are considered suitable to estimate the effect concentration. ECOSAR Program v1.00 in EPI Suite v4.00 was used, which is acceptable with restrictions. QSAR calculations were conducted for substances which were representative of the carbon numbers of the members of the category (methane, ethane, propane, butane, isobutane and propane) The EC50 for toxicity to aquatic algae is estimated to range from 7.71 to 16.5 mg.l-1in fresh water.