Registration Dossier
Registration Dossier
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EC number: 939-601-6 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Growth of an alga culture, Pseudokirchnerella subcapitata (reported as Raphidocelis subcapitata), measured by biomass and growth rate, exposed to a water accommodated fraction of hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics, was not inhibited over 72 hours. The growth of algae in the test systems was greater than the controls, which performed normally. Therefore, the 72-hr EL50 values for the two endpoints are reported as >1000 mg/L. The 72-hr NOELR values for biomass and growth rate are reported as 1000 mg/L, respectively. These data are used as read-across to hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics. Based on these data, hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics, is not expected to produce toxic effects to algae at saturation.
Key value for chemical safety assessment
Additional information
Growth of an alga culture, Pseudokirchnerella subcapitata (reported as Raphidocelis subcapitata), measured by biomass and growth rate, exposed to a water accommodated fraction of hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics, was not inhibited over 72 hours. The growth of algae in the test systems was greater than the controls, which performed normally. Therefore, the 72-hr EL50 values for the two endpoints are reported as >1000 mg/L. The 72-hr NOELR values for biomass and growth rate are reported as 1000 mg/L, respectively. These data are used as read-across to hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics. Based on these data, hydrocarbons, C14-C19, isoalkanes, cyclics, <2% aromatics, is not expected to produce toxic effects to algae at saturation.
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