Registration Dossier

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 21 mg/L, whereas the ErC50 for algae exceeded 82 mg/L.Based on the lowest available acute data for Daphnia with an EC50 value of 21 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 (algae ErC10 38 mg/L), 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 lowest chronic value available is the ErC10 for algae being 38 mg/L. In combination with the substance being rapidly degradable this would not lead to classification according to Table 4.1.0 (b) (i) of CLP. In view of the acute daphnid result of 21 mg/L, the substance being rapidly biodegradable and log Kow < 4, the substance does not need to be classified for long term aquatic toxicity according to Figure 4.1.1 and Table 4.1.0, (b) iii of CLP.

Overall, it can be concluded that Ethyl Amyl Ketone (EAK) does not need to be classified for the environment in accordance with the criteria outlined in Annex I of the CLP Regulation (1272/2008/EC).