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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The 3h-EC10 for respiration rate was ca. 156 mg/L, based on nominal active ingredient p-TS Acid, which is equivalent to 173 mg/L p-TSC.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
173 mg/L

Additional information

One study, valid with restrictions, is available with p-TS Acid, as p-TSC is instantly hydrolysed to p-TS Acid, this study can be used here. Activated sludge of a predominantly domestic sewage was exposed for 3 hours to p-TS Acid, according to OECD guideline 209. The 3h-EC10 for respiration rate was ca. 156 mg/L, based on nominal active ingredient p-TS Acid, which is equivalent to 173 mg/L p-TSC.