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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The water accommodated fraction of hydrocarbons, C12-C16, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >87,556 mg/L and LL0 value of 87,556 mg/L to the fish, Oncorhynchus mykiss. No mortality was observed in either the control or treatment systems. These data are used as read-across data to hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics. 
Additional data from a read-across substance supports that hydrocarbons, C13-C16, isoalkanes, cyclics, <2% aromatics does not cause acute aquatic toxicity to fish. The water accommodated fraction of hydrocarbons, C14-C18, n-alkanes, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >250 mg/L and LL0 value of 250 mg/L with Danio rerio (Ex-Brachydanio rerio). No mortality was observed in either the control or treatment systems. Although these two substances are analogs to hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics, they have considerable overlap in carbon number. Additionally, although the second analog also contains normal hydrocarbons, which are not found in hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics, because their toxicological mode of action is the same as isoalkanes and cycloalkanes, they would be expected to exhibit the same degree of toxicity - or in this case, the lack of acute toxic effects.

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Additional information

The water accommodated fraction of hydrocarbons, C12-C16, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >87,556 mg/L and LL0 value of 87,556 mg/L to the fish, Oncorhynchus mykiss. No mortality was observed in either the control or treatment systems. These data are used as read-across data to hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics.

Additional data from a read-across substance supports that hydrocarbons, C13-C16, isoalkanes, cyclics, <2% aromatics does not cause acute aquatic toxicity to fish. The water accommodated fraction of hydrocarbons, C14-C18, n-alkanes, isoalkanes, cyclics, <2% aromatics, produced a 96-hour LL50 value of >250 mg/L and LL0 value of 250 mg/L with Danio rerio (Ex-Brachydanio rerio). No mortality was observed in either the control or treatment systems. Although these two substances are analogs to hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics, they have considerable overlap in carbon number. Additionally, although the second analog also contains normal hydrocarbons, which are not found in hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics, because their toxicological mode of action is the same as isoalkanes and cycloalkanes, they would be expected to exhibit the same degree of toxicity - or in this case, the lack of acute toxic effects.