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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

The freshwater endpoint represents the lowest toxicity value obtained for Daphnia magna (Kuhn et al., 1988, 1989).
The marine endpoint represents the lowest toxicity value obtained for Trongylocentrotus droebachiensis [sea urchin] (Falk-Petersen et al., 1985).
Both endpoints were derived for p-Cresol

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
4.9 mg/L
EC50/LC50 for marine water invertebrates:
5 mg/L

Additional information

Endpoints derived for p-Cresol have been used for this mixed xylenol assessment. Since there are structural and physical chemical similarities between the cresols and the other molecules within the mixed xylenol grouping it is acceptable to assume that their ecotoxicological profiles would be similar.