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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 72h growth rate ErC50 and ErC10 values were 23 and 10 mg/L, respectively for Pseudokirchneriella subcapitata (OECD 201, static) exposed to Alcohols, C7-9-iso-, C8-rich.

Key value for chemical safety assessment

EC50 for freshwater algae:
23 mg/L
EC10 or NOEC for freshwater algae:
10 mg/L

Additional information

Experimental toxicity data for the registered substance are adequate for the purpose of classification and labelling and/or risk assessment. Supporting information is provided by acute and chronic aquatic toxicity values calculated using the neutral organics structure-activity relationship in the ECOSAR computer program (Nabholz and Mayo-Bean, 2009) of EPISuite; the results of which are consistent with the measured test data. Validity and applicability of the QSAR are described in a document attached as background material to the QSAR endpoint study record.