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Ecotoxicological information

Long-term toxicity to fish

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Description of key information

The freshwater endpoint represents the lowest toxicity value obtained for Pimephales promelas [fathead minnow] (Barron and Adelman, 1984).
The marine endpoint represents the lowest toxicity value obtained for eggs of Gadus morrhua [Atlantic cod] (Falk-Petersen et al., 1985).
Both endpoints were derived for p-Cresol

Key value for chemical safety assessment

EC10, LC10 or NOEC for freshwater fish:
1.35 mg/L
EC10, LC10 or NOEC for marine water fish:
0.3 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.