Registration Dossier
Registration Dossier
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EC number: 947-990-9 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Short-term EC50 values for Yoghurt powder (EC no. 917 -734 -0) are available for two trophic levels of the aquatic freshwater compartment (aquatic invertebrates, algae).
The toxicity of Yoghurt powder (EC no. 917 -734 -0) to Desmodesmus subspicatus was determined in a 72 hour static test according to OECD guideline 201. The 72 h ErC50 value of Yoghurt powder (EC no. 917-734-0) on the green alga Desmodesmus subspicatus is 267 mg/L nominal concentration corresponding to 164 mg/L mean measured concentration. The ErC10 value is 38.6 mg/L nominal concentration corresponding to 30.7 mg/L mean measured concentration.
The acute toxicity of Yoghurt powder (EC no. 917-734-0) to Daphnia magna was determined in a 48 hour static test according to OECD guideline 202. The median effect concentrations (EC50) of Yoghurt powder on Daphnia magna were estimated to be >100 mg/L and >100 mg/L nominal concentration after 24 and 48 h of exposure, respectively. The NOEC values were determined to be 100 mg/L nominal concentration after 24 and 48 h of exposure, respectively. The results of the test can be considered reliable without restriction.
Based on the collected data and the given argumentation (see data waiving for endpoint short-term toxicity to fish), it was considered that an acute fish test does not have to be conducted.
Conclusion on classification
The environmental classification of Yoghurt powder (EC no. 917 -734 -0) is currently not harmonised according to the CLP Regulation (EC) 1272/2008. Based on available acute aquatic toxicity data, the lowest valid effect concentration for freshwater aquatic organisms is >100 mg/L (EC50 for aquatic invertebrates). Based on the available data, the substance should not be classified for acute / chronic aquatic toxicity following Annex I, table 4.1.0a of the CLP regulation (there are no acute values <=1 mg/L, no chronic values <= 1 mg/l and the substance is readily biodegradable)).
Additional information
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