Registration Dossier
Registration Dossier
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EC number: 231-327-9 | CAS number: 7493-57-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Short-term toxicity tests for algae and Daphnia are available for the substance. The EC50 value for Daphnia is 15.6 mg/l, whereas the ErC50 for algae is 8.4 mg/L. Based on the lowest available acute data for algae with an EC50 value of 8.4 mg/L, the substance does not need to be classified for acute aquatic toxicity according to Table 4.1.0 (a) of CLP.
As only one chronic value is available (for algae), the aquatic chronic classification needs to be derived on both chronic and acute toxicity data and the most stringent outcome needs to be taken into consideration. The only chronic value available is the ErC10 for algae being 5.8 mg/L. In combination with the substance being not readily degradable this would not lead to classification according to Table 4.1.0 (b) (i) of CLP. When taking into account the acute data of the other trophic level, i.e. Daphnia with an EC50 value of 15.6 mg/l, the substance being not readily biodegradable and the log Kow of 4.1, the substance needs to be classified for chronic toxicity according to Figure 4.1.1 and Table 4.1.0 (b) (iii) of CLP, in category Chronic 3 (H412).
Overall, it can be concluded that Hyacinth body #3 needs to be classified for the environment as Aquatic Chronic 3 (H412) in accordance with the criteria outlined in Annex I of the CLP Regulation (1272/2008/EC) and its updates.
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