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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

 Hϋls (1992) reported a NOEC of 0.03 mg octylphenol/L for inhibition of D. magna (reproduction)
Marcial et al., (2003) reported a NOEC for survival of >0.01 mg octylphenol/L for Tigriopus japonicus. 

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
0.03 mg/L

Marine water invertebrates

Marine water invertebrates
Effect concentration:
0.01 mg/L

Additional information

Reliable toxicity test results for long-term exposure of octylphenol to aquatic invertebrates included the key study by Hϋls (1992) using the freshwater preferred test species Daphnia magna, and the study by Marcial et al., (2003) using the marine copepod Tigriopus japonicus. Octylphenol exposure duration in each study was 21 days. Hϋls (1992) reported a NOEC of 0.03 mg octylphenol/L for inhibition of D. magna reproduction and Marcial et al., (2003) reported a NOEC for survival of >0.01 mg octylphenol/L for Tigriopus japonicus. 

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